Document and Entity Information - shares	3 Months Ended
Document and Entity Information - shares	Mar. 31, 2017	Apr. 26, 2017
Document and Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q1
Trading Symbol	MAR
Entity Registrant Name	MARRIOTT INTERNATIONAL INC /MD/
Entity Central Index Key	0001048286
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		378,890,739

CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
REVENUES
Base management fees	$ 264	$ 172
Franchise fees	365	250
Incentive management fees	153	101
Management and franchise fees	782	523
Owned, leased, and other revenue	439	204
Cost reimbursements	4,340	3,045
Revenues	5,561	3,772
OPERATING COSTS AND EXPENSES
Owned, leased, and other - direct	358	166
Reimbursed costs	4,340	3,045
Depreciation, amortization, and other	65	31
General, administrative, and other	210	155
Merger-related costs and charges	51	8
Costs and Expenses, Total	5,024	3,405
OPERATING INCOME	537	367
Gains and other income, net	0	0
Interest expense	(70)	(47)
Interest income	7	6
Equity in earnings	11	0
INCOME BEFORE INCOME TAXES	485	326
Provision for income taxes	(120)	(107)
NET INCOME	$ 365	$ 219
EARNINGS PER SHARE
Earnings per share - basic (in USD per share)	$ 0.95	$ 0.86
Earnings per share - diluted (in USD per share)	0.94	0.85
CASH DIVIDENDS DECLARED PER SHARE (in USD per share)	$ 0.30	$ 0.25

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 365	$ 219
Other comprehensive income (loss):
Foreign currency translation adjustments	188	22
Derivative instrument adjustments, net of tax	(2)	(5)
Unrealized (loss) gain on available-for-sale securities, net of tax	(1)	1
Reclassification of losses, net of tax	0	1
Total other comprehensive income, net of tax	185	19
Comprehensive income	$ 550	$ 238

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016
Current assets
Cash and equivalents	$ 738	$ 858
Accounts and notes receivable, net	1,752	1,695
Prepaid expenses and other	231	230
Assets held for sale	400	588
Assets, current, total	3,121	3,371
Property and equipment, net	2,109	2,335
Intangible assets
Goodwill	7,802	7,598
Goodwill and intangible assets, net, total	17,125	16,868
Equity and cost method investments	745	728
Notes receivable, net	267	245
Deferred tax assets	119	116
Other noncurrent assets	439	477
Total assets	23,925	24,140
Current liabilities
Current portion of long-term debt	309	309
Accounts payable	661	687
Accrued payroll and benefits	1,034	1,174
Liability for guest loyalty programs	1,948	1,866
Accrued expenses and other	1,271	1,111
Liabilities, current, total	5,223	5,147
Long-term debt	8,161	8,197
Liability for guest loyalty programs	2,662	2,675
Deferred tax liabilities	891	1,020
Other noncurrent liabilities	1,820	1,744
Shareholders’ equity
Class A Common Stock	5	5
Additional paid-in-capital	5,711	5,808
Retained earnings	6,750	6,501
Treasury stock, at cost	(6,986)	(6,460)
Accumulated other comprehensive loss	(312)	(497)
Stockholders' equity (deficit) attributable to parent	5,168	5,357
Liabilities and equity (deficit), total	23,925	24,140
Brands
Intangible assets
Intangible assets	6,577	6,509
Contract acquisition costs and other
Intangible assets
Intangible assets	$ 2,746	$ 2,761

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
OPERATING ACTIVITIES
Net income	$ 365	$ 219
Adjustments to reconcile to cash provided by operating activities:
Depreciation, amortization, and other	65	31
Share-based compensation	48	28
Income taxes	82	58
Liability for guest loyalty programs	60	76
Merger-related charges	(36)	0
Working capital changes	(108)	(45)
Other	50	27
Net cash provided by operating activities	526	394
INVESTING ACTIVITIES
Capital expenditures	(48)	(42)
Dispositions	311	4
Loan advances	(28)	(16)
Loan collections	7	2
Contract acquisition costs	(54)	(21)
Other	(4)	9
Net cash provided by (used in) investing activities	184	(64)
FINANCING ACTIVITIES
Commercial paper/Credit facility, net	(33)	51
Issuance of long-term debt	1	0
Repayment of long-term debt	(4)	(2)
Issuance of Class A Common Stock	2	6
Dividends paid	(115)	(64)
Purchase of treasury stock	(582)	(248)
Other	(99)	(70)
Net cash used in financing activities	(830)	(327)
(DECREASE) INCREASE IN CASH AND EQUIVALENTS	(120)	3
CASH AND EQUIVALENTS, beginning of period	858	96
CASH AND EQUIVALENTS, end of period	$ 738	$ 99

Basis of Presentation

3 Months Ended

Mar. 31, 2017

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Presentation

BASIS OF PRESENTATION

The condensed consolidated financial statements present the results of operations, financial position, and cash flows of Marriott International, Inc. and subsidiaries (referred to in this report as “we,” “us,” “Marriott,” or “the Company”). In order to make this report easier to read, we also refer throughout to (i) our Condensed Consolidated Financial Statements as our “Financial Statements,” (ii) our Condensed Consolidated Statements of Income as our “Income Statements,” (iii) our Condensed Consolidated Balance Sheets as our “Balance Sheets,” (iv) our Condensed Consolidated Statements of Cash Flows as our “Statements of Cash Flows,” (v) our properties, brands, or markets in the United States (“U.S.”) and Canada as “North America” or “North American,” and (vi) our properties, brands, or markets outside of the U.S. and Canada as “International.” In addition, references throughout to numbered “Footnotes” refer to the numbered Notes in these Notes to Condensed Consolidated Financial Statements, unless otherwise noted.

These Financial Statements have not been audited. We have condensed or omitted certain information and footnote disclosures normally included in financial statements presented in accordance with U.S. generally accepted accounting principles (“GAAP”). The financial statements in this report should be read in conjunction with the consolidated financial statements and notes thereto in our Annual Report on Form 10-K for the fiscal year ended December 31, 2016 (“2016 Form 10-K”). Certain terms not otherwise defined in this Form 10-Q have the meanings specified in our 2016 Form 10-K.

Preparation of financial statements that conform with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the financial statements, the reported amounts of revenues and expenses during the reporting periods, and the disclosures of contingent liabilities. Accordingly, ultimate results could differ from those estimates.

The accompanying Financial Statements reflect all normal and recurring adjustments necessary to present fairly our financial position as of March 31, 2017 and December 31, 2016 and the results of our operations and cash flows for the three months ended March 31, 2017 and March 31, 2016. Interim results may not be indicative of fiscal year performance because of seasonal and short-term variations. We have eliminated all material intercompany transactions and balances between entities consolidated in these Financial Statements. We have made certain reclassifications of our prior year amounts to conform to our current presentation of “Merger-related costs and charges” in our Income Statements.

Beginning in the 2017 first quarter, we reclassified branding fees for third-party residential sales and credit card licensing to the “Franchise fees” caption from the “Owned, leased, and other” caption on our Income Statements, as we believe branding fees are more akin to franchise royalties than owned and leased hotel profits. Branding fees for the three months ended March 31, 2017 totaled $60 million. We reclassified the prior period amounts, which totaled $43 million for the three months ended March 31, 2016, to conform to our current presentation.

In the 2017 first quarter, our Asia Pacific operating segment met the applicable accounting criteria to be a reportable segment. Our Europe, Middle East and Africa, and Caribbean and Latin America operating segments do not individually meet the criteria for separate disclosure as reportable segments, and accordingly we combined them into an “all other category” which we refer to as “Other International.” We reclassified prior period amounts to conform to our current presentation. See Footnote 11 “Business Segments.”

Acquisition of Starwood Hotels & Resorts Worldwide

On September 23, 2016 (the “Merger Date”), we completed the acquisition of Starwood Hotels & Resorts Worldwide, LLC, formerly known as Starwood Hotels & Resorts Worldwide, Inc. (“Starwood”), through a series of transactions (the “Starwood Combination”), after which Starwood became an indirect wholly-owned subsidiary of the Company. Accordingly, our Income Statements include Starwood’s results of operations in the three months ended March 31, 2017, but exclude Starwood’s results of operations in the three months ended March 31, 2016 as that was prior to the Merger Date. We refer to our business associated with brands that were in our portfolio before the Starwood Combination as “Legacy-Marriott” and to the Starwood business and brands that we acquired as “Legacy-Starwood.” See Footnote 2 “Acquisitions and Dispositions” for more information on the Starwood Combination.

New Accounting Standards

Accounting Standards Update No. 2014-09 - “Revenue from Contracts with Customers” (“ASU 2014-09”)

ASU 2014-09 supersedes the revenue recognition requirements in Topic 605, Revenue Recognition, as well as most industry-specific guidance, and significantly enhances comparability of revenue recognition practices across entities and industries by providing a principles-based, comprehensive framework for addressing revenue recognition issues. In order for a provider of promised goods or services to recognize as revenue the consideration that it expects to receive in exchange for the promised goods or services, the provider should apply the following five steps: (1) identify the contract with a customer(s); (2) identify the performance obligations in the contract; (3) determine the transaction price; (4) allocate the transaction price to the performance obligations in the contract; and (5) recognize revenue when (or as) the entity satisfies a performance obligation. ASU 2014-09 also specifies the accounting for some costs to obtain or fulfill a contract with a customer and provides enhanced disclosure requirements. The Financial Accounting Standards Board (“FASB”) has deferred ASU 2014-09 for one year, and with that deferral, the standard will be effective for annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period, which for us will be our 2018 first quarter. We are permitted to use either the retrospective or the modified retrospective method when adopting ASU 2014-09, and we are evaluating the available adoption methods. We are still assessing the potential impact that ASU 2014-09 will have on our financial statements and disclosures, but we believe that recognition of base management and franchise fees will remain unchanged, but there likely will be changes to our revenue recognition policies related to our loyalty programs and the following:


•	We expect to recognize franchise application and relicensing fees over the term of the franchise contract rather than at hotel opening.


•	We expect to present the amortization of contract acquisition costs paid to customers as a reduction of revenue rather than as an amortization expense.

•

We expect to recognize gains from the sale of real estate assets when control of the asset is transferred to the buyer, generally at the time the sale closes. Under current guidance, we defer gains on sales of real estate assets if we maintain substantial continuing involvement. We do not expect that this change will have a material impact on our Financial Statements, as we typically do not have transactions that require us to defer significant gains.

Accounting Standards Update No. 2016-02 - “Leases” (“ASU 2016-02”)

In February 2016, the FASB issued ASU 2016-02, which introduces a lessee model that brings substantially all leases onto the balance sheet. Under the new standard, a lessee will recognize on its balance sheet a lease liability and a right-of-use asset for all leases, including operating leases, with a term greater than 12 months. The new standard will also distinguish leases as either finance leases or operating leases. This distinction will affect how leases are measured and presented in the income statement and statement of cash flows. ASU 2016-02 is effective for annual and interim periods in fiscal years beginning after December 15, 2018. We are still assessing the potential impact that ASU 2016-02 will have on our financial statements and disclosures.

Accounting Standards Update No. 2016-09 - “Stock Compensation” (“ASU 2016-09”)

We adopted ASU 2016-09 in the 2017 first quarter, which involves several aspects of the accounting for share-based payments. The new guidance had the following impacts on our Financial Statements:

•

We now record excess tax benefits (or deficiencies) as income tax expense (or benefit) in our Income Statements. Previously, we recorded excess tax benefits (deficiencies) in additional paid-in-capital in our Balance Sheets. As required, we prospectively applied this amendment in our Income Statements, which resulted in a benefit of $43 million to our provision for income taxes, approximately $0.11 per diluted share, for the three months ended March 31, 2017.

•

We now classify excess tax benefits (or deficiencies) along with other income taxes in operating activities in our Statements of Cash Flows. ASU 2016-09 allowed for this amendment to be applied either prospectively or retrospectively. For consistency with our application of ASU 2016-09 in our Income Statements, we applied this amendment prospectively in our Statements of Cash Flows. For the three months ended March 31, 2017, operating activities in our Statements of Cash Flows includes $43 million from excess tax benefits. For the three months ended March 31, 2016, we classified $6 million of excess tax benefits as financing inflows.


•	We now classify cash paid to taxing authorities when we withhold shares for employee tax-withholding purposes as a financing activity. As required, we retrospectively applied this amendment in our Statements of Cash Flows, and accordingly we reclassified $61 million of cash outflows from operating activities to financing activities for the three months ended March 31, 2016.

Accounting Standards Update No. 2017-01 - “Clarifying the Definition of a Business” (“ASU 2017-01”)

In January 2017, the FASB issued ASU 2017-01, clarifying the definition of a business to help companies evaluate whether transactions should be accounted for as acquisitions or disposals of assets or businesses. We prospectively adopted ASU 2017-01 in the 2017 first quarter, and as a result, we determined that our planned hotel disposition arising during the period did not meet the definition of a business, and therefore we did not assign any goodwill of the reporting unit to the carrying value of the asset.

Acquisitions and Dispositions

3 Months Ended

Mar. 31, 2017

Business Combinations [Abstract]

Acquisitions and Dispositions

ACQUISITIONS AND DISPOSITIONS

Starwood Combination

The following table presents the fair value of each class of consideration that we transferred in the Starwood Combination.



(in millions, except per share amounts)
Equivalent shares of Marriott common stock issued in exchange for Starwood outstanding shares	134.4
Marriott common stock price as of Merger Date	$	68.44
Fair value of Marriott common stock issued in exchange for Starwood outstanding shares	9,198
Cash consideration to Starwood shareholders, net of cash acquired of $1,116	2,412
Fair value of Marriott equity-based awards issued in exchange for vested Starwood equity-based awards	71
Total consideration transferred, net of cash acquired	$	11,681

Preliminary Fair Values of Assets Acquired and Liabilities Assumed. Our preliminary estimates of fair values of the assets that we acquired and the liabilities that we assumed are based on the information that was available as of the Merger Date, and we are continuing to evaluate the underlying inputs and assumptions used in our valuations. Accordingly, these preliminary estimates are subject to change during the measurement period, which is up to one year from the Merger Date. During the 2017 first quarter, we refined our valuation models related to certain acquired IT systems, our assumptions for capital expenditure needs of owned and leased hotels, and certain assumptions related to operating lease agreements.

The following table presents our preliminary estimates of fair values of the assets that we acquired and the liabilities that we assumed on the Merger Date as previously reported at year-end 2016 and at the end of the 2017 first quarter.



($ in millions)	September 23, 2016 (as reported at December 31, 2016)			Adjustments			September 23, 2016 (as adjusted at March 31, 2017)
Working capital	$	(180	)	$	(35	)	$	(215	)
Property and equipment, including assets held for sale	1,999			(99		)	1,900
Identified intangible assets	7,957			(40		)	7,917
Equity and cost method investments	579			—			579
Other noncurrent assets	224			(29		)	195
Deferred income taxes, net	(1,516		)	92			(1,424		)
Guest loyalty program	(1,631		)	(7		)	(1,638		)
Debt	(1,871		)	—			(1,871		)
Other noncurrent liabilities	(654		)	(32		)	(686		)
Net assets acquired	4,907			(150		)	4,757
Goodwill ⁽¹⁾	6,774			150			6,924
	$	11,681		$	—		$	11,681


⁽¹⁾	Goodwill primarily represents the value that we expect to obtain from synergies and growth opportunities from our combined operations, and it is not deductible for tax purposes. See Footnote 11 “Business Segments” for our preliminary assignment of goodwill by reportable segment.

Property and Equipment. We provisionally estimated the value of the acquired land, building, and furniture and equipment using a combination of the income, cost, and market approaches, which are primarily based on significant Level 2 and Level 3 assumptions, such as estimates of future income growth, capitalization rates, discount rates, and capital expenditure needs of the hotels. We are continuing to assess the marketplace assumptions and property conditions, which could result in changes to these provisional values.

Identified Intangible Assets. The following table presents our preliminary estimates of the fair values of Starwood’s identified intangible assets and their related estimated useful lives.



	Estimated Fair Value ($ in millions)		Estimated Useful Life (in years)
Brands	$	6,452	indefinite
Management agreements	672		10-25
Franchise agreements	744		10-80
Loyalty program marketing rights	49		30
	$	7,917

We provisionally estimated the value of Starwood’s brands using the relief-from-royalty method, which applies an estimated royalty rate to forecasted future cash flows, discounted to present value. We estimated the value of management and franchise agreements using the multi-period excess earnings method, which is a variation of the income approach. This method estimates an intangible asset’s value based on the present value of the incremental after-tax cash flows attributable to the intangible asset. These valuation approaches utilize Level 3 inputs, and we continue to review Starwood’s contracts and historical performance in addition to evaluating the inputs, including the discount rates and growth assumptions, which could result in changes to these provisional values.

Equity Method Investments. Our equity method investments consist primarily of entities that own hotel real estate. We provisionally estimated the value of that real estate using the same methods as for property and equipment described above. We continue to review the terms of the partnership and joint venture agreements, assess the conditions of the properties, and evaluate the discount rates, any discounts for lack of marketability and control as appropriate, and growth assumptions used in valuing these investments, which could result in changes to our provisional values.

Deferred Income Taxes. We provisionally estimated deferred income taxes based on statutory tax rates in the jurisdictions of the legal entities where the acquired noncurrent assets and liabilities are taxed. We continue to assess the tax rates used, and we will update our estimate of deferred income taxes based on any changes to our provisional valuations of the related assets and liabilities and refinement of the effective tax rates, which could result in changes to these provisional values.

Guest Loyalty Program. As of the Merger Date, we assumed the fair value of this liability equals Starwood’s historical book value in establishing a provisional estimate for this liability. We are reviewing assumptions utilized in an actuarial valuation of the future redemption obligations, which could result in changes to the provisional value of the program liability.

Debt, Leases, and Other Contractual Obligations or Contingencies. We primarily valued debt using quoted market prices, which are considered Level 1 inputs as they are observable in the market.

We identified certain onerous provisions within a few of the acquired management and other agreements. We valued liabilities associated with these provisions using an income approach and Level 3 inputs, including cash flows, discount rates, and growth assumptions. We continue to review and evaluate Starwood’s agreements, historical performance, discount rates, and growth assumptions, which could result in changes to these provisional values.

In connection with the Starwood Combination, we are currently assessing various regulatory compliance matters at several foreign Legacy-Starwood locations, including compliance with the U.S. Foreign Corrupt Practices Act. The results of this assessment may give rise to contingencies that could require us to record balance sheet liabilities or accrue expenses. While any such amounts are not currently estimable, we will review our provisional assessment of these contingencies as we gather more information.

Dispositions and Planned Dispositions

In the 2017 first quarter, we sold a North American Full-Service hotel, which we had acquired in the Starwood Combination and previously classified as “Assets held for sale,” and received $306 million in cash. In conjunction with the sale, we also transferred the associated ground lease, as a result of which our future minimum operating lease obligations decreased by approximately $194 million as follows: $3 million in 2017, $4 million in 2018, $4 million in 2019, $4 million in 2020, $4 million in 2021, and $175 million thereafter.

At the end of the 2017 first quarter, we held $400 million of assets classified as “Assets held for sale” on our Balance Sheets related to two North American Full-Service hotels and the remaining Miami Beach EDITION residences.

Merger-Related Costs and Charges

3 Months Ended

Mar. 31, 2017

Restructuring and Related Activities [Abstract]

Merger-Related Costs and Charges

MERGER-RELATED COSTS AND CHARGES

The following table presents pre-tax merger-related costs and other charges that we incurred in connection with the Starwood Combination.



	Three Months Ended
($ in millions)	March 31, 2017		March 31, 2016
Merger-related costs and charges
Transaction costs	$	7	$	7
Employee termination costs	21		—
Integration costs	23		1
	51		8
Interest expense	—		2
	$	51	$	10

Transaction costs represent costs related to the planning and execution of the Starwood Combination, primarily for financial advisory, legal, and other professional service fees. Employee termination costs represent employee severance, retention, and other termination related benefits. Integration costs primarily represent integration employee salaries and share-based compensation, change management consultants, and technology-related costs. Merger-related interest expense in the 2016 first quarter reflects costs that we incurred for a bridge term loan facility commitment related to the Starwood Combination.

In connection with the Starwood Combination, we initiated a restructuring program to achieve cost synergies from our combined operations. We did not allocate costs associated with our restructuring program to any of our business segments. The following table presents our restructuring reserve activity during the 2017 first quarter:



($ in millions)	Employee termination costs
Balance at year-end 2016	$	192
Charges	—
Cash payments	(39		)
Adjustments ⁽¹⁾	9
Balance at March 31, 2017, classified in “Accrued expenses and other”	$	162


⁽¹⁾	Adjustments primarily reflect the reversal of charges for certain employees who accepted other positions at the Company or resigned and the impact of cumulative translation adjustments.

Earnings Per Share

3 Months Ended

Mar. 31, 2017

Earnings Per Share [Abstract]

Earnings Per Share

EARNINGS PER SHARE

The table below presents the reconciliation of the earnings and number of shares used in our calculations of basic and diluted earnings per share:



	Three Months Ended
(in millions, except per share amounts)	March 31, 2017		March 31, 2016
Computation of Basic Earnings Per Share
Net income	$	365	$	219
Shares for basic earnings per share	384.9		254.4
Basic earnings per share	$	0.95	$	0.86
Computation of Diluted Earnings Per Share
Net income	$	365	$	219
Shares for basic earnings per share	384.9		254.4
Effect of dilutive securities
Share-based compensation	5.1		4.5
Shares for diluted earnings per share	390.0		258.9
Diluted earnings per share	$	0.94	$	0.85

We compute the effect of dilutive securities using the treasury stock method and average market prices during the period. We excluded antidilutive stock options and stock appreciation rights of 0.2 million for the 2017 first quarter and 0.5 million for the 2016 first quarter from our calculation of diluted earnings per share because their exercise prices were greater than the average market prices.

Income Taxes	3 Months Ended
Income Taxes	Mar. 31, 2017
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES Our effective tax rate decreased to 24.7% for the 2017 first quarter from 32.8% for the 2016 first quarter, primarily due to a tax benefit of $43 million from the adoption of ASU 2016-09. We paid cash for income taxes, net of refunds, of $37 million in the 2017 first quarter and $43 million in the 2016 first quarter.

Share-Based Compensation

3 Months Ended

Mar. 31, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Share-Based Compensation

SHARE-BASED COMPENSATION

We recorded share-based compensation expense of $48 million in the 2017 first quarter and $28 million in the 2016 first quarter. Deferred compensation costs for unvested awards totaled $301 million at March 31, 2017 and $192 million at December 31, 2016.

RSUs and PSUs

We granted 1.6 million RSUs during the 2017 first quarter to certain officers and key employees, and those units vest generally over four years in equal annual installments commencing one year after the grant date. We granted 0.2 million PSUs in the 2017 first quarter to certain executive officers, subject to continued employment and the satisfaction of certain performance conditions based on achievement of pre-established targets for Adjusted EBITDA, RevPAR Index, room openings, and/or net administrative expense over, or at the end of, a three-year performance period. RSUs, including PSUs, granted in the 2017 first quarter had a weighted average grant-date fair value of $83.

SARs

We granted 0.3 million SARs to officers and key employees during the 2017 first quarter. These SARs generally expire ten years after the grant date and both vest and may be exercised in cumulative installments of one quarter at the end of each of the first four years following the grant date. The weighted average grant-date fair value of SARs granted in the 2017 first quarter was $30 and the weighted average exercise price was $88.

We used the following assumptions as part of a binomial lattice-based valuation to determine the fair value of the SARs we granted during the 2017 first quarter:



Expected volatility	30.9	%
Dividend yield	1.3	%
Risk-free rate	2.4	%
Expected term (in years)	7 - 9

- Definition

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

+ References + Details

Commitments and Contingencies

3 Months Ended

Mar. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

COMMITMENTS AND CONTINGENCIES

Guarantees

We present the maximum potential amount of our future guarantee fundings and the carrying amount of our liability for guarantees for which we are the primary obligor at March 31, 2017 in the following table:



($ in millions) Guarantee Type	Maximum Potential Amount of Future Fundings		Recorded Liability for Guarantees
Debt service	$	156	$	23
Operating profit	116		34
Other	8		2
Total guarantees where we are the primary obligor	$	280	$	59

Legal Proceedings

In November 2015, Starwood announced a malware intrusion had affected point of sale systems at various outlets within certain Legacy-Starwood branded hotels. This resulted in the potential compromise of credit card data and associated personal information. The affected credit card companies are evaluating whether and to what extent financial penalties should be imposed. In addition, a putative class action arising from the malware intrusion was filed against Starwood on January 5, 2016 in the United States District Court for the Southern District of California. The named plaintiff, Paul Dugas, does not specify any damages sought. Starwood initially filed a motion to dismiss that was granted in part and denied in part in November 2016. The plaintiff filed an amended complaint in December 2016, and in March 2017, we filed another motion to dismiss. On April 6, 2017, the court issued an Order to Show Cause why the case should not be dismissed for lack of subject matter jurisdiction, to which the parties have responded. A hearing has been scheduled for May 12, 2017.

On May 10, 2016, the owners of the Sheraton Grand Chicago and the Westin Times Square, New York, filed suit in the Supreme Court of New York against Starwood and Marriott seeking to enjoin the merger of the two companies. The complaint alleges violations of the territorial restrictions contained in the management agreements for those two hotels arising as a result of the merger of Marriott and Starwood. While the attempt to enjoin the merger ultimately failed, the underlying suit continued as a breach of contract claim, and plaintiffs seek, among other remedies, monetary damages relating to the alleged violations. We are evaluating alternatives for resolving the claims.

We do not expect either proceeding to have a significant impact on our consolidated results of operations as they both relate to matters existing as of the Merger Date.

Other Contingencies

See a description of certain contingencies relating to the Starwood Combination in Footnote 2 “Acquisitions and Dispositions.”

Long-Term Debt

3 Months Ended

Mar. 31, 2017

Debt Disclosure [Abstract]

Long-Term Debt

LONG-TERM DEBT

We provide detail on our long-term debt balances, net of discounts, premiums, and debt issuance costs, in the following table at the end of the 2017 first quarter and year-end 2016:



	At Period End
($ in millions)	March 31, 2017			December 31, 2016
Senior Notes:
Series I Notes, interest rate of 6.4%, face amount of $293, maturing June 15, 2017 (effective interest rate of 6.5%)	$	293		$	293
Series K Notes, interest rate of 3.0%, face amount of $600, maturing March 1, 2019 (effective interest rate of 4.4%)	597			597
Series L Notes, interest rate of 3.3%, face amount of $350, maturing September 15, 2022 (effective interest rate of 3.4%)	348			348
Series M Notes, interest rate of 3.4%, face amount of $350, maturing October 15, 2020 (effective interest rate of 3.6%)	347			347
Series N Notes, interest rate of 3.1%, face amount of $400, maturing October 15, 2021 (effective interest rate of 3.4%)	396			396
Series O Notes, interest rate of 2.9%, face amount of $450, maturing March 1, 2021 (effective interest rate of 3.1%)	447			446
Series P Notes, interest rate of 3.8%, face amount of $350, maturing October 1, 2025 (effective interest rate of 4.0%)	344			344
Series Q Notes, interest rate of 2.3%, face amount of $750, maturing January 15, 2022 (effective interest rate of 2.5%)	743			742
Series R Notes, interest rate of 3.1%, face amount of $750, maturing June 15, 2026 (effective interest rate of 3.3%)	742			742
Series S Notes, interest rate of 6.8%, face amount of $324, maturing May 15, 2018 (effective interest rate of 1.7%)	342			346
Series T Notes, interest rate of 7.2%, face amount of $181, maturing December 1, 2019 (effective interest rate of 2.3%)	204			206
Series U Notes, interest rate of 3.1%, face amount of $291, maturing February 15, 2023 (effective interest rate of 3.1%)	291			291
Series V Notes, interest rate of 3.8%, face amount of $318, maturing March 15, 2025 (effective interest rate of 2.8%)	339			340
Series W Notes, interest rate of 4.5%, face amount of $278, maturing October 1, 2034 (effective interest rate of 4.1%)	293			293
Commercial paper	2,285			2,311
Credit Facility	—			—
Capital lease obligations	173			173
Other	286			291
	8,470			8,506
Less: Current portion of long-term debt	(309		)	(309		)
	$	8,161		$	8,197

We paid cash for interest, net of amounts capitalized, of $49 million in the 2017 first quarter and $23 million in the 2016 first quarter.

We are party to a multicurrency revolving credit agreement (the “Credit Facility”) that provides for up to $4,000 million of aggregate effective borrowings. See the “Cash Requirements and Our Credit Facilities” caption later in this report in the “Liquidity and Capital Resources” section for further information on our Credit Facility and available borrowing capacity at March 31, 2017.

Fair Value of Financial Instruments

3 Months Ended

Mar. 31, 2017

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments

FAIR VALUE OF FINANCIAL INSTRUMENTS

We believe that the fair values of our current assets and current liabilities approximate their reported carrying amounts. We present the carrying values and the fair values of noncurrent financial assets and liabilities that qualify as financial instruments, determined under current guidance for disclosures on the fair value of financial instruments, in the following table:



	March 31, 2017						December 31, 2016
($ in millions)	Carrying Amount			Fair Value			Carrying Amount			Fair Value
Senior, mezzanine, and other loans	$	267		$	255		$	245		$	231
Total noncurrent financial assets	$	267		$	255		$	245		$	231

Senior Notes	$	(5,433	)	$	(5,453	)	$	(5,438	)	$	(5,394	)
Commercial paper	(2,285		)	(2,285		)	(2,311		)	(2,311		)
Other long-term debt	(275		)	(282		)	(280		)	(284		)
Total noncurrent financial liabilities	$	(7,993	)	$	(8,020	)	$	(8,029	)	$	(7,989	)

See the “Fair Value Measurements” caption of Footnote 2 “Summary of Significant Accounting Policies” of our 2016 Form 10-K for more information on the input levels we use in determining fair value.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Other Comprehensive (Loss) Income and Shareholders' Equity

3 Months Ended

Mar. 31, 2017

Equity [Abstract]

Other Comprehensive (Loss) Income and Shareholders' Equity

OTHER COMPREHENSIVE (LOSS) INCOME AND SHAREHOLDERS' EQUITY

The following tables detail the accumulated other comprehensive (loss) income activity for the 2017 first quarter and 2016 first quarter:



($ in millions)	Foreign Currency Translation Adjustments			Derivative Instrument Adjustments			Available-For-Sale Securities Unrealized Adjustments			Pension and Postretirement Adjustments		Accumulated Other Comprehensive Loss
Balance at year-end 2016	$	(503	)	$	(5	)	$	6		$	5	$	(497	)
Other comprehensive income (loss) before reclassifications ⁽¹⁾	188			(2		)	(1		)	—		185
Amounts reclassified from accumulated other comprehensive loss	—			—			—			—		—
Net other comprehensive income (loss)	188			(2		)	(1		)	—		185
Balance at March 31, 2017	$	(315	)	$	(7	)	$	5		$	5	$	(312	)



($ in millions)	Foreign Currency Translation Adjustments			Derivative Instrument Adjustments			Available-For-Sale Securities Unrealized Adjustments		Pension and Postretirement Adjustments		Accumulated Other Comprehensive Loss
Balance at year-end 2015	$	(192	)	$	(8	)	$	4	$	—	$	(196	)
Other comprehensive income (loss) before reclassifications ⁽¹⁾	22			(5		)	1		—		18
Amounts reclassified from accumulated other comprehensive loss	—			1			—		—		1
Net other comprehensive income (loss)	22			(4		)	1		—		19
Balance at March 31, 2016	$	(170	)	$	(12	)	$	5	$	—	$	(177	)


⁽¹⁾	Other comprehensive income before reclassifications for foreign currency translation adjustments includes losses on intra-entity foreign currency transactions that are of a long-term investment nature of $16 million for the 2017 first quarter and $20 million for the 2016 first quarter.

The following table details the changes in common shares outstanding and shareholders’ equity for the 2017 first quarter:



(in millions, except per share amounts)
Common Shares Outstanding			Total			Class A Common Stock		Additional Paid-in- Capital			Retained Earnings			Treasury Stock, at Cost			Accumulated Other Comprehensive Loss
386.1		Balance at year-end 2016	$	5,357		$	5	$	5,808		$	6,501		$	(6,460	)	$	(497	)
—		Net income	365			—		—			365			—			—
—		Other comprehensive income	185			—		—			—			—			185
—		Dividends ($0.30 per share)	(116		)	—		—			(116		)	—			—
1.6		Employee stock plan	(48		)	—		(97		)	—			49			—
(6.7	)	Purchase of treasury stock	(575		)	—		—			—			(575		)	—
381.0		Balance at March 31, 2017	$	5,168		$	5	$	5,711		$	6,750		$	(6,986	)	$	(312	)

- Definition

The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.

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+ Details

Business Segments

3 Months Ended

Mar. 31, 2017

Segment Reporting [Abstract]

Business Segments

BUSINESS SEGMENTS

We are a diversified global lodging company with operations in the following reportable business segments:


•	North American Full-Service, which includes our Luxury and Premium brands located in the United States and Canada;


•	North American Limited-Service, which includes our Select brands located in the United States and Canada;


•	Asia Pacific, which includes all brand tiers in our Asia Pacific region; and


•	Other International, which includes all brand tiers in our Europe, Middle East and Africa, and Caribbean and Latin America regions.

Our North American Full-Service, North American Limited-Service, and Asia Pacific segments meet the applicable accounting criteria to be reportable segments. Our Europe, Middle East and Africa, and Caribbean and Latin America operating segments individually do not meet the criteria for separate disclosure as reportable segments, and accordingly we combined them into an “all other category” which we refer to as “Other International.”

We evaluate the performance of our operating segments using “segment profits” which is based largely on the results of the segment without allocating corporate expenses, income taxes, indirect general, administrative, and other expenses, or merger-related costs and charges. We assign gains and losses, equity in earnings or losses from our joint ventures, and direct general, administrative, and other expenses to each of our segments. “Other unallocated corporate” represents a portion of our revenues, general, administrative, and other expenses, merger-related costs and charges, equity in earnings or losses, and other gains or losses that we do not allocate to our segments. It also includes license fees we receive from our credit card programs and fees from vacation ownership licensing agreements, which we present in the “Franchise fees” caption of our Income Statements.

Our President and Chief Executive Officer, who is our chief operating decision maker, monitors assets for the consolidated company but does not use assets by operating segment when assessing performance or making operating segment resource allocations.

Segment Revenues



	Three Months Ended
($ in millions)	March 31, 2017		March 31, 2016
North American Full-Service	$	3,576	$	2,321
North American Limited-Service	924		833
Asia Pacific	312		141
Other International	602		415
Total segment revenues	5,414		3,710
Other unallocated corporate	147		62
Total consolidated revenues	$	5,561	$	3,772

Segment Profits



	Three Months Ended
($ in millions)	March 31, 2017			March 31, 2016
North American Full-Service	$	289		$	185
North American Limited-Service	177			155
Asia Pacific	82			27
Other International	86			48
Total segment profits	634			415
Other unallocated corporate	(86		)	(48		)
Interest expense, net of interest income	(63		)	(41		)
Income taxes	(120		)	(107		)
Net income	$	365		$	219

Goodwill



($ in millions)	North American Full-Service		North American Limited-Service			Asia Pacific		Other International		Total Goodwill
Year-end 2016 balance:
Goodwill	$	2,905	$	1,558		$	1,572	$	1,617	$	7,652
Accumulated impairment losses	—		(54		)	—		—		(54		)
	2,905		1,504			1,572		1,617		7,598

Adjustments ⁽¹⁾	$	51	$	30		$	33	$	36	$	150
Foreign currency translation	3		(1		)	29		23		54

March 31, 2017 balance:
Goodwill	$	2,959	$	1,587		$	1,634	$	1,676	$	7,856
Accumulated impairment losses	—		(54		)	—		—		(54		)
	$	2,959	$	1,533		$	1,634	$	1,676	$	7,802


⁽¹⁾	The table reflects adjustments to our preliminary estimate of goodwill from the Starwood Combination. Because we have not yet finalized the fair values of assets acquired and liabilities assumed, the assignment of goodwill to our reporting units may continue to change during the measurement period. See Footnote 2 “Acquisitions and Dispositions” for more information.

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

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+ Details

Basis of Presentation (Policies)

3 Months Ended

Mar. 31, 2017

Organization, Consolidation and Presentation of Financial Statements [Abstract]

New Accounting Standards

Accounting Standards Update No. 2014-09 - “Revenue from Contracts with Customers” (“ASU 2014-09”)


•	We expect to recognize franchise application and relicensing fees over the term of the franchise contract rather than at hotel opening.


•	We expect to present the amortization of contract acquisition costs paid to customers as a reduction of revenue rather than as an amortization expense.

•

Accounting Standards Update No. 2016-02 - “Leases” (“ASU 2016-02”)

Accounting Standards Update No. 2016-09 - “Stock Compensation” (“ASU 2016-09”)

We adopted ASU 2016-09 in the 2017 first quarter, which involves several aspects of the accounting for share-based payments. The new guidance had the following impacts on our Financial Statements:

•


•	We now classify cash paid to taxing authorities when we withhold shares for employee tax-withholding purposes as a financing activity. As required, we retrospectively applied this amendment in our Statements of Cash Flows, and accordingly we reclassified $61 million of cash outflows from operating activities to financing activities for the three months ended March 31, 2016.

Accounting Standards Update No. 2017-01 - “Clarifying the Definition of a Business” (“ASU 2017-01”)

Earnings Per Share Dilutive Securities

We compute the effect of dilutive securities using the treasury stock method and average market prices during the period.

Acquisitions and Dispositions (Tables)

3 Months Ended

Mar. 31, 2017

Business Combinations [Abstract]

Schedule of Consideration Transferred

The following table presents the fair value of each class of consideration that we transferred in the Starwood Combination.



(in millions, except per share amounts)
Equivalent shares of Marriott common stock issued in exchange for Starwood outstanding shares	134.4
Marriott common stock price as of Merger Date	$	68.44
Fair value of Marriott common stock issued in exchange for Starwood outstanding shares	9,198
Cash consideration to Starwood shareholders, net of cash acquired of $1,116	2,412
Fair value of Marriott equity-based awards issued in exchange for vested Starwood equity-based awards	71
Total consideration transferred, net of cash acquired	$	11,681

The following table presents pre-tax merger-related costs and other charges that we incurred in connection with the Starwood Combination.



	Three Months Ended
($ in millions)	March 31, 2017		March 31, 2016
Merger-related costs and charges
Transaction costs	$	7	$	7
Employee termination costs	21		—
Integration costs	23		1
	51		8
Interest expense	—		2
	$	51	$	10

Schedule of Fair Value of Assets Acquired and Liabilities Assumed



($ in millions)	September 23, 2016 (as reported at December 31, 2016)			Adjustments			September 23, 2016 (as adjusted at March 31, 2017)
Working capital	$	(180	)	$	(35	)	$	(215	)
Property and equipment, including assets held for sale	1,999			(99		)	1,900
Identified intangible assets	7,957			(40		)	7,917
Equity and cost method investments	579			—			579
Other noncurrent assets	224			(29		)	195
Deferred income taxes, net	(1,516		)	92			(1,424		)
Guest loyalty program	(1,631		)	(7		)	(1,638		)
Debt	(1,871		)	—			(1,871		)
Other noncurrent liabilities	(654		)	(32		)	(686		)
Net assets acquired	4,907			(150		)	4,757
Goodwill ⁽¹⁾	6,774			150			6,924
	$	11,681		$	—		$	11,681


⁽¹⁾	Goodwill primarily represents the value that we expect to obtain from synergies and growth opportunities from our combined operations, and it is not deductible for tax purposes. See Footnote 11 “Business Segments” for our preliminary assignment of goodwill by reportable segment.

Schedule of Fair Values of Identified Intangible Assets

The following table presents our preliminary estimates of the fair values of Starwood’s identified intangible assets and their related estimated useful lives.



	Estimated Fair Value ($ in millions)		Estimated Useful Life (in years)
Brands	$	6,452	indefinite
Management agreements	672		10-25
Franchise agreements	744		10-80
Loyalty program marketing rights	49		30
	$	7,917

Merger-Related Costs and Charges (Tables)

3 Months Ended

Mar. 31, 2017

Restructuring and Related Activities [Abstract]

Schedule of Type of Merger-Related Costs and Charges

The following table presents the fair value of each class of consideration that we transferred in the Starwood Combination.



(in millions, except per share amounts)
Equivalent shares of Marriott common stock issued in exchange for Starwood outstanding shares	134.4
Marriott common stock price as of Merger Date	$	68.44
Fair value of Marriott common stock issued in exchange for Starwood outstanding shares	9,198
Cash consideration to Starwood shareholders, net of cash acquired of $1,116	2,412
Fair value of Marriott equity-based awards issued in exchange for vested Starwood equity-based awards	71
Total consideration transferred, net of cash acquired	$	11,681

The following table presents pre-tax merger-related costs and other charges that we incurred in connection with the Starwood Combination.



	Three Months Ended
($ in millions)	March 31, 2017		March 31, 2016
Merger-related costs and charges
Transaction costs	$	7	$	7
Employee termination costs	21		—
Integration costs	23		1
	51		8
Interest expense	—		2
	$	51	$	10

Schedule of Restructuring Reserve Activity

The following table presents our restructuring reserve activity during the 2017 first quarter:



($ in millions)	Employee termination costs
Balance at year-end 2016	$	192
Charges	—
Cash payments	(39		)
Adjustments ⁽¹⁾	9
Balance at March 31, 2017, classified in “Accrued expenses and other”	$	162


⁽¹⁾	Adjustments primarily reflect the reversal of charges for certain employees who accepted other positions at the Company or resigned and the impact of cumulative translation adjustments.

Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2017

Earnings Per Share [Abstract]

Reconciliation of the Earnings (Losses) and Number of Shares Used in Calculations of Basic and Diluted Earnings Per Share

The table below presents the reconciliation of the earnings and number of shares used in our calculations of basic and diluted earnings per share:



	Three Months Ended
(in millions, except per share amounts)	March 31, 2017		March 31, 2016
Computation of Basic Earnings Per Share
Net income	$	365	$	219
Shares for basic earnings per share	384.9		254.4
Basic earnings per share	$	0.95	$	0.86
Computation of Diluted Earnings Per Share
Net income	$	365	$	219
Shares for basic earnings per share	384.9		254.4
Effect of dilutive securities
Share-based compensation	5.1		4.5
Shares for diluted earnings per share	390.0		258.9
Diluted earnings per share	$	0.94	$	0.85

Share-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Assumptions for SARs

We used the following assumptions as part of a binomial lattice-based valuation to determine the fair value of the SARs we granted during the 2017 first quarter:



Expected volatility	30.9	%
Dividend yield	1.3	%
Risk-free rate	2.4	%
Expected term (in years)	7 - 9

Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Maximum Potential Amount of Future Fundings as the Primary Obligor for Guarantees and the Liability for Expected Future Fundings



($ in millions) Guarantee Type	Maximum Potential Amount of Future Fundings		Recorded Liability for Guarantees
Debt service	$	156	$	23
Operating profit	116		34
Other	8		2
Total guarantees where we are the primary obligor	$	280	$	59

Long-Term Debt (Tables)

3 Months Ended

Mar. 31, 2017

Debt Disclosure [Abstract]

Long-Term Debt

We provide detail on our long-term debt balances, net of discounts, premiums, and debt issuance costs, in the following table at the end of the 2017 first quarter and year-end 2016:



	At Period End
($ in millions)	March 31, 2017			December 31, 2016
Senior Notes:
Series I Notes, interest rate of 6.4%, face amount of $293, maturing June 15, 2017 (effective interest rate of 6.5%)	$	293		$	293
Series K Notes, interest rate of 3.0%, face amount of $600, maturing March 1, 2019 (effective interest rate of 4.4%)	597			597
Series L Notes, interest rate of 3.3%, face amount of $350, maturing September 15, 2022 (effective interest rate of 3.4%)	348			348
Series M Notes, interest rate of 3.4%, face amount of $350, maturing October 15, 2020 (effective interest rate of 3.6%)	347			347
Series N Notes, interest rate of 3.1%, face amount of $400, maturing October 15, 2021 (effective interest rate of 3.4%)	396			396
Series O Notes, interest rate of 2.9%, face amount of $450, maturing March 1, 2021 (effective interest rate of 3.1%)	447			446
Series P Notes, interest rate of 3.8%, face amount of $350, maturing October 1, 2025 (effective interest rate of 4.0%)	344			344
Series Q Notes, interest rate of 2.3%, face amount of $750, maturing January 15, 2022 (effective interest rate of 2.5%)	743			742
Series R Notes, interest rate of 3.1%, face amount of $750, maturing June 15, 2026 (effective interest rate of 3.3%)	742			742
Series S Notes, interest rate of 6.8%, face amount of $324, maturing May 15, 2018 (effective interest rate of 1.7%)	342			346
Series T Notes, interest rate of 7.2%, face amount of $181, maturing December 1, 2019 (effective interest rate of 2.3%)	204			206
Series U Notes, interest rate of 3.1%, face amount of $291, maturing February 15, 2023 (effective interest rate of 3.1%)	291			291
Series V Notes, interest rate of 3.8%, face amount of $318, maturing March 15, 2025 (effective interest rate of 2.8%)	339			340
Series W Notes, interest rate of 4.5%, face amount of $278, maturing October 1, 2034 (effective interest rate of 4.1%)	293			293
Commercial paper	2,285			2,311
Credit Facility	—			—
Capital lease obligations	173			173
Other	286			291
	8,470			8,506
Less: Current portion of long-term debt	(309		)	(309		)
	$	8,161		$	8,197

- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 505
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

Reference 4: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(e),(f))
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Reference 5: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

Reference 6: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 8: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 835
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-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28541-108399

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
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-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21521-112644

+ Details

Fair Value of Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2017

Fair Value Disclosures [Abstract]

Carrying Values and Fair Values of Non-Current Financial Assets and Liabilities

We present the carrying values and the fair values of noncurrent financial assets and liabilities that qualify as financial instruments, determined under current guidance for disclosures on the fair value of financial instruments, in the following table:



	March 31, 2017						December 31, 2016
($ in millions)	Carrying Amount			Fair Value			Carrying Amount			Fair Value
Senior, mezzanine, and other loans	$	267		$	255		$	245		$	231
Total noncurrent financial assets	$	267		$	255		$	245		$	231

Senior Notes	$	(5,433	)	$	(5,453	)	$	(5,438	)	$	(5,394	)
Commercial paper	(2,285		)	(2,285		)	(2,311		)	(2,311		)
Other long-term debt	(275		)	(282		)	(280		)	(284		)
Total noncurrent financial liabilities	$	(7,993	)	$	(8,020	)	$	(8,029	)	$	(7,989	)

Other Comprehensive (Loss) Income and Shareholders' Equity (Tables)

3 Months Ended

Mar. 31, 2017

Equity [Abstract]

Accumulated Other Comprehensive Income (Loss) Activity

The following tables detail the accumulated other comprehensive (loss) income activity for the 2017 first quarter and 2016 first quarter:



($ in millions)	Foreign Currency Translation Adjustments			Derivative Instrument Adjustments			Available-For-Sale Securities Unrealized Adjustments			Pension and Postretirement Adjustments		Accumulated Other Comprehensive Loss
Balance at year-end 2016	$	(503	)	$	(5	)	$	6		$	5	$	(497	)
Other comprehensive income (loss) before reclassifications ⁽¹⁾	188			(2		)	(1		)	—		185
Amounts reclassified from accumulated other comprehensive loss	—			—			—			—		—
Net other comprehensive income (loss)	188			(2		)	(1		)	—		185
Balance at March 31, 2017	$	(315	)	$	(7	)	$	5		$	5	$	(312	)



($ in millions)	Foreign Currency Translation Adjustments			Derivative Instrument Adjustments			Available-For-Sale Securities Unrealized Adjustments		Pension and Postretirement Adjustments		Accumulated Other Comprehensive Loss
Balance at year-end 2015	$	(192	)	$	(8	)	$	4	$	—	$	(196	)
Other comprehensive income (loss) before reclassifications ⁽¹⁾	22			(5		)	1		—		18
Amounts reclassified from accumulated other comprehensive loss	—			1			—		—		1
Net other comprehensive income (loss)	22			(4		)	1		—		19
Balance at March 31, 2016	$	(170	)	$	(12	)	$	5	$	—	$	(177	)


⁽¹⁾	Other comprehensive income before reclassifications for foreign currency translation adjustments includes losses on intra-entity foreign currency transactions that are of a long-term investment nature of $16 million for the 2017 first quarter and $20 million for the 2016 first quarter.

Changes in Shareholders' Equity (Deficit)

The following table details the changes in common shares outstanding and shareholders’ equity for the 2017 first quarter:



(in millions, except per share amounts)
Common Shares Outstanding			Total			Class A Common Stock		Additional Paid-in- Capital			Retained Earnings			Treasury Stock, at Cost			Accumulated Other Comprehensive Loss
386.1		Balance at year-end 2016	$	5,357		$	5	$	5,808		$	6,501		$	(6,460	)	$	(497	)
—		Net income	365			—		—			365			—			—
—		Other comprehensive income	185			—		—			—			—			185
—		Dividends ($0.30 per share)	(116		)	—		—			(116		)	—			—
1.6		Employee stock plan	(48		)	—		(97		)	—			49			—
(6.7	)	Purchase of treasury stock	(575		)	—		—			—			(575		)	—
381.0		Balance at March 31, 2017	$	5,168		$	5	$	5,711		$	6,750		$	(6,986	)	$	(312	)

Business Segments (Tables)

3 Months Ended

Mar. 31, 2017

Segment Reporting [Abstract]

Segment Revenues



	Three Months Ended
($ in millions)	March 31, 2017		March 31, 2016
North American Full-Service	$	3,576	$	2,321
North American Limited-Service	924		833
Asia Pacific	312		141
Other International	602		415
Total segment revenues	5,414		3,710
Other unallocated corporate	147		62
Total consolidated revenues	$	5,561	$	3,772

Segment Profits



	Three Months Ended
($ in millions)	March 31, 2017			March 31, 2016
North American Full-Service	$	289		$	185
North American Limited-Service	177			155
Asia Pacific	82			27
Other International	86			48
Total segment profits	634			415
Other unallocated corporate	(86		)	(48		)
Interest expense, net of interest income	(63		)	(41		)
Income taxes	(120		)	(107		)
Net income	$	365		$	219

Goodwill



($ in millions)	North American Full-Service		North American Limited-Service			Asia Pacific		Other International		Total Goodwill
Year-end 2016 balance:
Goodwill	$	2,905	$	1,558		$	1,572	$	1,617	$	7,652
Accumulated impairment losses	—		(54		)	—		—		(54		)
	2,905		1,504			1,572		1,617		7,598

Adjustments ⁽¹⁾	$	51	$	30		$	33	$	36	$	150
Foreign currency translation	3		(1		)	29		23		54

March 31, 2017 balance:
Goodwill	$	2,959	$	1,587		$	1,634	$	1,676	$	7,856
Accumulated impairment losses	—		(54		)	—		—		(54		)
	$	2,959	$	1,533		$	1,634	$	1,676	$	7,802


⁽¹⁾	The table reflects adjustments to our preliminary estimate of goodwill from the Starwood Combination. Because we have not yet finalized the fair values of assets acquired and liabilities assumed, the assignment of goodwill to our reporting units may continue to change during the measurement period. See Footnote 2 “Acquisitions and Dispositions” for more information.

Basis of Presentation - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Owned, leased, and other revenue	$ 439	$ 204
Franchise fees	365	250
Provision for income taxes	$ (120)	$ (107)
Earnings per share - diluted (in USD per share)	$ 0.94	$ 0.85
Excess tax benefit classified as financing activity		$ 6
Net cash provided by operating activities	$ 526	394
Net cash provided by (used in) financing activities	(830)	(327)
Accounting Standards Update 2016-09
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Provision for income taxes	$ 43
Earnings per share - diluted (in USD per share)	$ 0.11
Net cash provided by operating activities		(61)
Net cash provided by (used in) financing activities		61
Reclassification
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Owned, leased, and other revenue	$ (60)	(43)
Franchise fees	$ 60	$ 43

Acquisitions and Dispositions- Starwood Consideration Transferred (Details) - Starwood Hotels & Resorts Worldwide, Inc. $ / shares in Units, shares in Millions, $ in Millions	Sep. 23, 2016 USD ($) $ / shares shares
Business Acquisition [Line Items]
Equivalent shares of Marriott common stock issued in exchange for Starwood outstanding shares (in shares) \| shares	134.4
Marriott common stock price as of Merger Date (in USD per share) \| $ / shares	$ 68.44
Fair value of Marriott common stock issued in exchange for Starwood outstanding shares	$ 9,198
Cash consideration to Starwood shareholders, net of cash acquired of $1,116	2,412
Fair value of Marriott equity-based awards issued in exchange for vested Starwood equity-based awards	71
Total consideration transferred, net of cash acquired	11,681
Cash acquired	$ 1,116

Acquisitions and Dispositions- Starwood Allocation of Fair Value of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions	Sep. 23, 2016	Mar. 31, 2017	Dec. 31, 2016
Business Acquisition [Line Items]
Goodwill		$ 7,802	$ 7,598
Starwood Hotels & Resorts Worldwide, Inc.
Business Acquisition [Line Items]
Working capital	$ (215)
Working capital, Adjustments	(35)
Property and equipment, including assets held for sale	1,900
Property and equipment, including assets held for sale, Adjustments	(99)
Identified intangible assets	7,917
Identified intangible assets, Adjustments	(40)
Equity and cost method investments	579
Equity and cost method investments, Adjustments	0
Other noncurrent assets	195
Other noncurrent assets, Adjustments	(29)
Deferred income taxes, net	(1,424)
Deferred income taxes, net, Adjustments	92
Guest loyalty program	(1,638)
Guest loyalty program, Adjustments	(7)
Debt	(1,871)
Debt, Adjustments	0
Other noncurrent liabilities	(686)
Other noncurrent liabilities, Adjustments	(32)
Net assets acquired	4,757
Net assets acquired, Adjustments	(150)
Goodwill	6,924
Goodwill, Adjustments	150
Fair value of assets acquired and liabilities assumed, net	11,681
Fair value of assets acquired and liabilities assumed, net, Adjustments	0
As Previously Reported \| Starwood Hotels & Resorts Worldwide, Inc.
Business Acquisition [Line Items]
Working capital	(180)
Property and equipment, including assets held for sale	1,999
Identified intangible assets	7,957
Equity and cost method investments	579
Other noncurrent assets	224
Deferred income taxes, net	(1,516)
Guest loyalty program	(1,631)
Debt	(1,871)
Other noncurrent liabilities	(654)
Net assets acquired	4,907
Goodwill	6,774
Fair value of assets acquired and liabilities assumed, net	$ 11,681

Acquisitions and Dispositions- Starwood Fair Value and Estimated Useful Lives of Identifiable Intangible Assets (Details) - Starwood Hotels & Resorts Worldwide, Inc. $ in Millions	Sep. 23, 2016 USD ($)
Business Acquisition [Line Items]
Identified intangible assets	$ 7,917
Management agreements
Business Acquisition [Line Items]
Estimated fair value, finite-lived intangible assets	672
Franchise agreements
Business Acquisition [Line Items]
Estimated fair value, finite-lived intangible assets	744
Loyalty program marketing rights
Business Acquisition [Line Items]
Estimated fair value, finite-lived intangible assets	$ 49
Estimated Useful Life (in years)	30 years
Brands
Business Acquisition [Line Items]
Estimated fair value, indefinite-lived intangible assets	$ 6,452
Minimum \| Management agreements
Business Acquisition [Line Items]
Estimated Useful Life (in years)	10 years
Minimum \| Franchise agreements
Business Acquisition [Line Items]
Estimated Useful Life (in years)	10 years
Maximum \| Management agreements
Business Acquisition [Line Items]
Estimated Useful Life (in years)	25 years
Maximum \| Franchise agreements
Business Acquisition [Line Items]
Estimated Useful Life (in years)	80 years

Acquisitions and Dispositions - Dispositions and Planned Dispositions (Details) $ in Millions	3 Months Ended
	Mar. 31, 2017 USD ($) hotel	Dec. 31, 2016 USD ($)
Remaining Future Minimum Operating Lease Obligations Due
Assets held for sale	$ 400	$ 588
Disposal Group, Disposed of by Sale, Not Discontinued Operations \| North American Full-Service Property
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash received from sale of property	306
Disposal Group, Held-for-sale, Not Discontinued Operations
Remaining Future Minimum Operating Lease Obligations Due
Assets held for sale	400
Disposal Group, Held-for-sale, Not Discontinued Operations \| North American Full-Service Property
Remaining Future Minimum Operating Lease Obligations Due
2017 (remaining)	3
2018	4
2019	4
2020	4
2021	4
Thereafter	175
Total	$ 194
Number of hotels held for sale \| hotel	2

Merger-Related Costs and Charges Merger-Related Costs and Charges- Types of Merger-related Costs and Charges (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Merger-related costs and charges
Transaction and integration costs	$ 51	$ 8
Interest expense	70	47
Starwood Hotels & Resorts Worldwide, Inc.
Merger-related costs and charges
Transaction costs	7	7
Transaction and integration costs	51	8
Interest expense	0	2
Transaction, integration, and interest costs	51	10
Employee termination costs \| Starwood Hotels & Resorts Worldwide, Inc.
Merger-related costs and charges
Integration costs	21	0
Integration costs \| Starwood Hotels & Resorts Worldwide, Inc.
Merger-related costs and charges
Integration costs	$ 23	$ 1

Merger-Related Costs and Charges Merger-Related Costs and Charges - Schedule of Restructuring Reserve Activity (Details) $ in Millions	3 Months Ended
	Mar. 31, 2017 USD ($)
Restructuring Reserve [Roll Forward]
Balance at year-end 2016	$ 192
Charges	0
Cash payments	(39)
Adjustments	9
Balance at March 31, 2017, classified in “Accrued expenses and other”	$ 162

Earnings Per Share - Reconciliation of the Earnings (Losses) and Number of Shares Used in Calculations of Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Computation of Basic Earnings Per Share
Net income	$ 365	$ 219
Shares for basic earnings per share (in shares)	384.9	254.4
Basic earnings per share (in USD per share)	$ 0.95	$ 0.86
Computation of Diluted Earnings Per Share
Net income	$ 365	$ 219
Shares for basic earnings per share (in shares)	384.9	254.4
Effect of dilutive securities
Effect of dilutive securities (in shares)	5.1	4.5
Shares for diluted earnings per share (in shares)	390.0	258.9
Diluted earnings per share (in USD per share)	$ 0.94	$ 0.85

Earnings Per Share - Additional Information (Details) - shares shares in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Stock Options and Stock Appreciation Rights
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Securities not included in the calculation of diluted earnings per share (in shares)	0.2	0.5

Income Taxes - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Valuation Allowance [Line Items]
Effective income tax rate	24.70%	32.80%
Provision for income taxes	$ (120)	$ (107)
Cash paid for income taxes, net of refunds	37	$ 43
Accounting Standards Update 2016-09
Valuation Allowance [Line Items]
Provision for income taxes	$ 43

Share-Based Compensation - Additional Information (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 48	$ 28
Deferred compensation costs related to unvested awards	$ 301		$ 192
RSUs and PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards, weighted average grant-date fair value (in USD per share)	$ 83
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards, granted (in shares)	1.6
Stock awards, vesting period	4 years
Stock awards, period of service after grant date	1 year
PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards, granted (in shares)	0.2
Stock awards, vesting period	3 years
SARs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards, granted (in shares)	0.3
Stock awards, vesting period	4 years
Stock awards, expiration period	10 years
Stock awards, weighted average grant-date fair value (in USD per share)	$ 30
Stock awards, weighted average exercise price (in USD per share)	$ 88

Share Based Compensation - Assumptions for SARs Granted (Details) - SARs	3 Months Ended
	Mar. 31, 2017
Share based Compensation Arrangement by Share based Payment Award, Fair Value Assumptions, Method Used [Line Items]
Expected volatility	30.90%
Dividend yield	1.30%
Risk-free rate	2.40%
Minimum
Share based Compensation Arrangement by Share based Payment Award, Fair Value Assumptions, Method Used [Line Items]
Expected term (in years)	7 years
Maximum
Share based Compensation Arrangement by Share based Payment Award, Fair Value Assumptions, Method Used [Line Items]
Expected term (in years)	9 years

Commitments and Contingencies - Guarantees (Details) $ in Millions	Mar. 31, 2017 USD ($)
Commitments and Contingencies Disclosure [Line Items]
Maximum Potential Amount of Future Fundings	$ 280
Recorded Liability for Guarantees	59
Debt service
Commitments and Contingencies Disclosure [Line Items]
Maximum Potential Amount of Future Fundings	156
Recorded Liability for Guarantees	23
Operating profit
Commitments and Contingencies Disclosure [Line Items]
Maximum Potential Amount of Future Fundings	116
Recorded Liability for Guarantees	34
Other
Commitments and Contingencies Disclosure [Line Items]
Maximum Potential Amount of Future Fundings	8
Recorded Liability for Guarantees	$ 2

Long-Term Debt (Detail) - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Credit Facility	$ 0	$ 0
Capital lease obligations	173	173
Total debt	8,470	8,506
Less: Current portion of long-term debt	(309)	(309)
Long-term debt, noncurrent	8,161	8,197
Series I Notes, interest rate of 6.4%, face amount of $293, maturing June 15, 2017 (effective interest rate of 6.5%)
Debt Instrument [Line Items]
Senior notes	293	293
Series K Notes, interest rate of 3.0%, face amount of $600, maturing March 1, 2019 (effective interest rate of 4.4%)
Debt Instrument [Line Items]
Senior notes	597	597
Series L Notes, interest rate of 3.3%, face amount of $350, maturing September 15, 2022 (effective interest rate of 3.4%)
Debt Instrument [Line Items]
Senior notes	348	348
Series M Notes, interest rate of 3.4%, face amount of $350, maturing October 15, 2020 (effective interest rate of 3.6%)
Debt Instrument [Line Items]
Senior notes	347	347
Series N Notes, interest rate of 3.1%, face amount of $400, maturing October 15, 2021 (effective interest rate of 3.4%)
Debt Instrument [Line Items]
Senior notes	396	396
Series O Notes, interest rate of 2.9%, face amount of $450, maturing March 1, 2021 (effective interest rate of 3.1%)
Debt Instrument [Line Items]
Senior notes	447	446
Series P Notes, interest rate of 3.8%, face amount of $350, maturing October 1, 2025 (effective interest rate of 4.0%)
Debt Instrument [Line Items]
Senior notes	344	344
Series Q Notes, interest rate of 2.3%, face amount of $750, maturing January 15, 2022 (effective interest rate of 2.5%)
Debt Instrument [Line Items]
Senior notes	743	742
Series R Notes, interest rate of 3.1%, face amount of $750, maturing June 15, 2026 (effective interest rate of 3.3%)
Debt Instrument [Line Items]
Senior notes	742	742
Series S Notes, interest rate of 6.8%, face amount of $324, maturing May 15, 2018 (effective interest rate of 1.7%)
Debt Instrument [Line Items]
Senior notes	342	346
Series T Notes, interest rate of 7.2%, face amount of $181, maturing December 1, 2019 (effective interest rate of 2.3%)
Debt Instrument [Line Items]
Senior notes	204	206
Series U Notes, interest rate of 3.1%, face amount of $291, maturing February 15, 2023 (effective interest rate of 3.1%)
Debt Instrument [Line Items]
Senior notes	291	291
Series V Notes, interest rate of 3.8%, face amount of $318, maturing March 15, 2025 (effective interest rate of 2.8%)
Debt Instrument [Line Items]
Senior notes	339	340
Series W Notes, interest rate of 4.5%, face amount of $278, maturing October 1, 2034 (effective interest rate of 4.1%)
Debt Instrument [Line Items]
Senior notes	293	293
Senior Notes \| Series I Notes, interest rate of 6.4%, face amount of $293, maturing June 15, 2017 (effective interest rate of 6.5%)
Debt Instrument [Line Items]
Senior notes, face amount	$ 293
Interest rate	6.40%
Effective interest rate	6.50%
Senior Notes \| Series K Notes, interest rate of 3.0%, face amount of $600, maturing March 1, 2019 (effective interest rate of 4.4%)
Debt Instrument [Line Items]
Senior notes, face amount	$ 600
Interest rate	3.00%
Effective interest rate	4.40%
Senior Notes \| Series L Notes, interest rate of 3.3%, face amount of $350, maturing September 15, 2022 (effective interest rate of 3.4%)
Debt Instrument [Line Items]
Senior notes, face amount	$ 350
Interest rate	3.30%
Effective interest rate	3.40%
Senior Notes \| Series M Notes, interest rate of 3.4%, face amount of $350, maturing October 15, 2020 (effective interest rate of 3.6%)
Debt Instrument [Line Items]
Senior notes, face amount	$ 350
Interest rate	3.40%
Effective interest rate	3.60%
Senior Notes \| Series N Notes, interest rate of 3.1%, face amount of $400, maturing October 15, 2021 (effective interest rate of 3.4%)
Debt Instrument [Line Items]
Senior notes, face amount	$ 400
Interest rate	3.10%
Effective interest rate	3.40%
Senior Notes \| Series O Notes, interest rate of 2.9%, face amount of $450, maturing March 1, 2021 (effective interest rate of 3.1%)
Debt Instrument [Line Items]
Senior notes, face amount	$ 450
Interest rate	2.90%
Effective interest rate	3.10%
Senior Notes \| Series P Notes, interest rate of 3.8%, face amount of $350, maturing October 1, 2025 (effective interest rate of 4.0%)
Debt Instrument [Line Items]
Senior notes, face amount	$ 350
Interest rate	3.80%
Effective interest rate	4.00%
Senior Notes \| Series Q Notes, interest rate of 2.3%, face amount of $750, maturing January 15, 2022 (effective interest rate of 2.5%)
Debt Instrument [Line Items]
Senior notes, face amount	$ 750
Interest rate	2.30%
Effective interest rate	2.50%
Senior Notes \| Series R Notes, interest rate of 3.1%, face amount of $750, maturing June 15, 2026 (effective interest rate of 3.3%)
Debt Instrument [Line Items]
Senior notes, face amount	$ 750
Interest rate	3.10%
Effective interest rate	3.30%
Senior Notes \| Series S Notes, interest rate of 6.8%, face amount of $324, maturing May 15, 2018 (effective interest rate of 1.7%)
Debt Instrument [Line Items]
Senior notes, face amount	$ 324
Interest rate	6.80%
Effective interest rate	1.70%
Senior Notes \| Series T Notes, interest rate of 7.2%, face amount of $181, maturing December 1, 2019 (effective interest rate of 2.3%)
Debt Instrument [Line Items]
Senior notes, face amount	$ 181
Interest rate	7.20%
Effective interest rate	2.30%
Senior Notes \| Series U Notes, interest rate of 3.1%, face amount of $291, maturing February 15, 2023 (effective interest rate of 3.1%)
Debt Instrument [Line Items]
Senior notes, face amount	$ 291
Interest rate	3.10%
Effective interest rate	3.10%
Senior Notes \| Series V Notes, interest rate of 3.8%, face amount of $318, maturing March 15, 2025 (effective interest rate of 2.8%)
Debt Instrument [Line Items]
Senior notes, face amount	$ 318
Interest rate	3.80%
Effective interest rate	2.80%
Senior Notes \| Series W Notes, interest rate of 4.5%, face amount of $278, maturing October 1, 2034 (effective interest rate of 4.1%)
Debt Instrument [Line Items]
Senior notes, face amount	$ 278
Interest rate	4.50%
Effective interest rate	4.10%
Commercial paper
Debt Instrument [Line Items]
Commercial paper	$ 2,285	2,311
Other
Debt Instrument [Line Items]
Other	$ 286	$ 291

Long-Term Debt - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Debt Disclosure [Abstract]
Interest paid, net of amounts capitalized	$ 49,000,000	$ 23,000,000
Maximum borrowing capacity under credit facility	$ 4,000,000,000

Fair Value of Financial Instruments - Carrying Values and Fair Values of Non-Current Financial Assets and Liabilities (Detail) - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Senior, mezzanine, and other loans	$ 267	$ 245
Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Senior, mezzanine, and other loans	267	245
Total noncurrent financial assets	267	245
Senior Notes	(5,433)	(5,438)
Commercial paper	(2,285)	(2,311)
Other long-term debt	(275)	(280)
Total noncurrent financial liabilities	(7,993)	(8,029)
Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Senior, mezzanine, and other loans	255	231
Total noncurrent financial assets	255	231
Senior Notes	(5,453)	(5,394)
Commercial paper	(2,285)	(2,311)
Other long-term debt	(282)	(284)
Total noncurrent financial liabilities	$ (8,020)	$ (7,989)

Other Comprehensive (Loss) Income and Shareholders' Equity - Accumulated Other Comprehensive (Loss) Income Activity (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period	$ 5,357
Other comprehensive income (loss) before reclassifications	185	$ 18
Amounts reclassified from accumulated other comprehensive loss	0	1
Total other comprehensive income, net of tax	185	19
Balance at end of period	5,168
Other comprehensive income (loss) before reclassification related to foreign current translation adjustment, loss on intra-equity foreign currency transaction	16	20
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period	(503)	(192)
Other comprehensive income (loss) before reclassifications	188	22
Amounts reclassified from accumulated other comprehensive loss	0	0
Total other comprehensive income, net of tax	188	22
Balance at end of period	(315)	(170)
Derivative Instrument Adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period	(5)	(8)
Other comprehensive income (loss) before reclassifications	(2)	(5)
Amounts reclassified from accumulated other comprehensive loss	0	1
Total other comprehensive income, net of tax	(2)	(4)
Balance at end of period	(7)	(12)
Available-For-Sale Securities Unrealized Adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period	6	4
Other comprehensive income (loss) before reclassifications	(1)	1
Amounts reclassified from accumulated other comprehensive loss	0	0
Total other comprehensive income, net of tax	(1)	1
Balance at end of period	5	5
Pension and Postretirement Adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period	5	0
Other comprehensive income (loss) before reclassifications	0	0
Amounts reclassified from accumulated other comprehensive loss	0	0
Total other comprehensive income, net of tax	0	0
Balance at end of period	5	0
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance at beginning of period	(497)	(196)
Total other comprehensive income, net of tax	185
Balance at end of period	$ (312)	$ (177)

Other Comprehensive (Loss) Income and Shareholders' Equity - Changes in Shareholders' Equity (Deficit) (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
(Increase) Decrease in Shareholders' Deficit [Roll Forward]
Balance at beginning of period	$ 5,357
Balance at beginning of period (in shares)	386.1
Net income	$ 365	$ 219
Other comprehensive income	185	19
Dividends ($0.30 per share)	(116)
Employee stock plan	$ (48)
Employee stock plan (in shares)	1.6
Purchase of treasury stock	$ (575)
Purchase of treasury stock (in shares)	(6.7)
Balance at end of period	$ 5,168
Balance at end of period (in shares)	381.0
Cash dividends (in USD per share)	$ 0.30
Class A Common Stock
(Increase) Decrease in Shareholders' Deficit [Roll Forward]
Balance at beginning of period	$ 5
Balance at end of period	5
Additional Paid-in- Capital
(Increase) Decrease in Shareholders' Deficit [Roll Forward]
Balance at beginning of period	5,808
Employee stock plan	(97)
Balance at end of period	5,711
Retained Earnings
(Increase) Decrease in Shareholders' Deficit [Roll Forward]
Balance at beginning of period	6,501
Net income	365
Dividends ($0.30 per share)	(116)
Balance at end of period	6,750
Treasury Stock, at Cost
(Increase) Decrease in Shareholders' Deficit [Roll Forward]
Balance at beginning of period	(6,460)
Employee stock plan	49
Purchase of treasury stock	(575)
Balance at end of period	(6,986)
Accumulated Other Comprehensive Loss
(Increase) Decrease in Shareholders' Deficit [Roll Forward]
Balance at beginning of period	(497)	(196)
Other comprehensive income	185
Balance at end of period	$ (312)	$ (177)

Business Segments - Segment Revenues (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue	$ 5,561	$ 3,772
Total segment
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue	5,414	3,710
Other unallocated corporate
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue	147	62
North American Full-Service \| Total segment
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue	3,576	2,321
North American Limited-Service \| Total segment
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue	924	833
Asia Pacific \| Total segment
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue	312	141
Other International \| Total segment
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue	$ 602	$ 415

Business Segments - Segment Profits (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment profits	$ 537	$ 367
Interest expense, net of interest income	(63)	(41)
Income taxes	(120)	(107)
Net income	365	219
Total segment
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment profits	634	415
Other unallocated corporate
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment profits	(86)	(48)
North American Full-Service \| Total segment
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment profits	289	185
North American Limited-Service \| Total segment
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment profits	177	155
Asia Pacific \| Total segment
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment profits	82	27
Other International \| Total segment
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment profits	$ 86	$ 48

Business Segments - Schedule of Goodwill (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Goodwill, gross		$ 7,856	$ 7,652
Accumulated impairment losses		(54)	(54)
Goodwill	$ 7,598	7,802	7,598
Goodwill [Roll Forward]
Goodwill	7,598
Adjustments	150
Foreign currency translation	54
Goodwill	7,802
North American Full-Service
Segment Reporting Information [Line Items]
Goodwill, gross		2,959	2,905
Accumulated impairment losses		0	0
Goodwill	2,905	2,959	2,905
Goodwill [Roll Forward]
Goodwill	2,905
Adjustments	51
Foreign currency translation	3
Goodwill	2,959
North American Limited-Service
Segment Reporting Information [Line Items]
Goodwill, gross		1,587	1,558
Accumulated impairment losses		(54)	(54)
Goodwill	1,504	1,533	1,504
Goodwill [Roll Forward]
Goodwill	1,504
Adjustments	30
Foreign currency translation	(1)
Goodwill	1,533
Asia Pacific
Segment Reporting Information [Line Items]
Goodwill, gross		1,634	1,572
Accumulated impairment losses		0	0
Goodwill	1,572	1,634	1,572
Goodwill [Roll Forward]
Goodwill	1,572
Adjustments	33
Foreign currency translation	29
Goodwill	1,634
Other International
Segment Reporting Information [Line Items]
Goodwill, gross		1,676	1,617
Accumulated impairment losses		0	0
Goodwill	1,617	$ 1,676	$ 1,617
Goodwill [Roll Forward]
Goodwill	1,617
Adjustments	36
Foreign currency translation	23
Goodwill	$ 1,676