Hyatt Hotels (H) 10-Q 3 May 18 2018 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2018	Apr. 27, 2018
Document Information
Entity Registrant Name	Hyatt Hotels Corp
Entity Central Index Key	1,468,174
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Mar. 31, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q1
Amendment Flag	false
Trading Symbol	h
Common Class A
Document Information
Entity Common Stock, Shares Outstanding		46,469,910
Common Class B
Document Information
Entity Common Stock, Shares Outstanding		70,496,643

Condensed Consolidated Statemen

Condensed Consolidated Statements of Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
REVENUES:
Owned and leased hotels	$ 515	$ 569
Management, franchise, and other fees	132	114
Amortization of management and franchise agreement assets constituting payments to customers	(5)	(4)
Net management, franchise, and other fees	127	110
Other revenues	11	17
Revenues for the reimbursement of costs incurred on behalf of managed and franchised properties	456	430
Total revenues	1,109	1,126
DIRECT AND SELLING, GENERAL, AND ADMINISTRATIVE EXPENSES:
Owned and leased hotels	384	424
Depreciation and amortization	83	87
Other direct costs	8	16
Selling, general, and administrative	95	99
Costs incurred on behalf of managed and franchised properties	460	445
Direct and selling, general, and administrative expenses	1,030	1,071
Net gains and interest income from marketable securities held to fund rabbi trusts	3	15
Equity losses from unconsolidated hospitality ventures	(13)	(3)
Interest expense	(19)	(21)
Gains on sales of real estate	529	0
Other income (loss), net	(18)	43
INCOME BEFORE INCOME TAXES	561	89
PROVISION FOR INCOME TAXES	(150)	(34)
NET INCOME	411	55
NET INCOME AND ACCRETION ATTRIBUTABLE TO NONCONTROLLING INTERESTS	0	0
NET INCOME ATTRIBUTABLE TO HYATT HOTELS CORPORATION	$ 411	$ 55
EARNINGS PER SHARE—Basic
Net income—Basic (in dollars per share)	$ 3.47	$ 0.43
Net income attributable to Hyatt Hotels Corporation—Basic (in dollars per share)	3.47	0.43
EARNINGS PER SHARE—Diluted
Net income—Diluted (in dollars per share)	3.40	0.42
Net income attributable to Hyatt Hotels Corporation—Diluted (in dollars per share)	3.40	0.42
CASH DIVIDENDS DECLARED PER SHARE (in dollars per share)	$ 0.15	$ 0

Condensed Consolidated Stateme3

Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 411	$ 55
Other comprehensive income, net of taxes:
Foreign currency translation adjustments, net of tax expense of $- for each of the three months ended March 31, 2018 and March 31, 2017	23	41
Unrealized gains on available-for-sale debt securities, net of tax expense of $- for each of the three months ended March 31, 2018 and March 31, 2017, and unrealized gains on available-for-sale equity securities, net of tax expense of $21 for the three months ended March 31, 2017	0	34
Other comprehensive income	23	75
COMPREHENSIVE INCOME	434	130
COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	0	0
COMPREHENSIVE INCOME ATTRIBUTABLE TO HYATT HOTELS CORPORATION	$ 434	$ 130

Condensed Consolidated Stateme4

Condensed Consolidated Statements of Comprehensive Income Parentheticals - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Statement of Comprehensive Income [Abstract]
Foreign currency translation adjustments, net of tax expense	$ 0	$ 0
Unrealized gains on available-for-sale debt securities tax	$ 0	0
Unrealized gains on available-for-sale equity securities tax		$ 21

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2018		Dec. 31, 2017
CURRENT ASSETS:
Cash and cash equivalents	$ 1,160		$ 503
Restricted cash	450	[1]	234
Short-term investments	54		49
Receivables, net of allowances of $23 and $21 at March 31, 2018 and December 31, 2017, respectively	367		350
Inventories	13		14
Prepaids and other assets	136		153
Prepaid income taxes	16		24
Total current assets	2,196		1,327
Investments	174		212
Property and equipment, net	3,572		4,034
Financing receivables, net of allowances	18		19
Goodwill	154		150
Intangibles, net	305		305
Deferred tax assets	149		141
Other assets	1,419		1,384
TOTAL ASSETS	7,987		7,572
CURRENT LIABILITIES:
Current maturities of long-term debt	11		11
Accounts payable	131		136
Accrued expenses and other current liabilities	466		352
Current contract liabilities	334		348
Accrued compensation and benefits	109		145
Total current liabilities	1,051		992
Long-term debt	1,439		1,440
Long-term contract liabilities	431		424
Other long-term liabilities	872		863
Total liabilities	3,793		3,719
Commitments and contingencies
Redeemable noncontrolling interest in preferred shares of a subsidiary	0		10
EQUITY:
Preferred stock, $0.01 par value per share, 10,000,000 shares authorized and none outstanding at March 31, 2018 and December 31, 2017	0		0
Class A common stock, $0.01 par value per share, 1,000,000,000 shares authorized, 47,515,803 issued and outstanding at March 31, 2018, and Class B common stock, $0.01 par value per share, 402,613,149 shares authorized, 70,496,643 shares issued and outstanding at March 31, 2018. Class A common stock, $0.01 par value per share, 1,000,000,000 shares authorized, 48,231,149 issued and outstanding at December 31, 2017, and Class B common stock, $0.01 par value per share, 402,748,249 shares authorized, 70,753,83	1		1
Additional paid-in capital	906		967
Retained earnings	3,511		3,054
Accumulated other comprehensive loss	(230)		(185)
Total stockholders’ equity	4,188		3,837
Noncontrolling interests in consolidated subsidiaries	6		6
Total equity	4,194		3,843
TOTAL LIABILITIES, REDEEMABLE NONCONTROLLING INTEREST, AND EQUITY	$ 7,987		$ 7,572
[1]	Restricted cash generally represents sales proceeds pursuant to like-kind exchanges, captive insurance subsidiary requirements, debt service on bonds, escrow deposits, and other arrangements.

Condensed Consolidated Balance6

Condensed Consolidated Balance Sheet Parentheticals - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Allowance for doubtful accounts receivable, current	$ 23	$ 21
Preferred stock, par value per share (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	10,000,000	10,000,000
Preferred stock, shares outstanding (in shares)	0	0
Common Class A
Common stock, par value per share (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	1,000,000,000	1,000,000,000
Common stock, shares, outstanding (in shares)	47,515,803	48,231,149
Common stock, shares, issued (in shares)	47,515,803	48,231,149
Common Class B
Common stock, par value per share (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	402,613,149	402,748,249
Common stock, shares, outstanding (in shares)	70,496,643	70,753,837
Common stock, shares, issued (in shares)	70,496,643	70,753,837

Condensed Consolidated Stateme7

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 411	$ 55
Adjustments to reconcile net income to net cash provided by operating activities:
Gains on sales of real estate	(529)	0
Depreciation and amortization	83	87
Deferred income taxes	(10)	(16)
Equity losses from unconsolidated hospitality ventures	13	3
Realized losses	1	41
Working capital changes and other	85	(29)
Net cash provided by operating activities	54	141
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of marketable securities and short-term investments	(97)	(111)
Proceeds from marketable securities and short-term investments	104	119
Contributions to equity method and other investments	(10)	(8)
Return of equity method and other investments	12	200
Acquisitions, net of cash acquired	0	(245)
Capital expenditures	(60)	(50)
Proceeds from sales of real estate, net of cash disposed	992	0
Other investing activities	(6)	(1)
Net cash provided by (used in) investing activities	935	(96)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from debt	20	180
Repayments of debt	(21)	(3)
Repurchases of common stock	(75)	(348)
Proceeds from redeemable noncontrolling interest in preferred shares in a subsidiary	0	9
Repayments of redeemable noncontrolling interest in preferred shares in a subsidiary	(10)	0
Dividends paid	(18)	0
Other financing activities	(5)	(4)
Net cash used in financing activities	(109)	(166)
EFFECT OF EXCHANGE RATE CHANGES ON CASH	(3)	1
NET INCREASE (DECREASE) IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH	877	(120)
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH—BEGINNING OF YEAR	752	573
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH—END OF PERIOD	$ 1,629	$ 453

Condensed Consolidated Stateme8

Condensed Consolidated Statements of Cash Flows - Supplemental Disclosure Information - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash and cash equivalents		$ 1,160	$ 374
Restricted cash	[1]	450	64
Restricted cash included in other assets	[1]	19	15
Total cash, cash equivalents, and restricted cash		1,629	453
Cash paid during the period for interest		35	37
Cash paid during the period for income taxes		10	10
Non-cash investing and financing activities are as follows:
Non-cash contributions to equity method investments		4	0
Change in accrued capital expenditures		$ 1	$ 17
[1]	Restricted cash generally represents sales proceeds pursuant to like-kind exchanges, captive insurance subsidiary requirements, debt service on bonds, escrow deposits, and other arrangements.

Organization

Organization	3 Months Ended
	Mar. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization	ORGANIZATION Hyatt Hotels Corporation, a Delaware corporation, and its consolidated subsidiaries (collectively "Hyatt Hotels Corporation") provide hospitality and other services on a worldwide basis through the development, ownership, operation, management, franchising, and licensing of hospitality and wellness related businesses. We develop, own, operate, manage, franchise, license, or provide services to a portfolio of properties consisting of full service hotels, select service hotels, resorts, and other properties, including branded spas and fitness studios, and timeshare, fractional, and other forms of residential or vacation properties. At March 31, 2018 , (i) we operated or franchised 334 full service hotels, comprising 128,893 rooms throughout the world, (ii) we operated or franchised 394 select service hotels, comprising 55,937 rooms, of which 345 hotels are located in the United States, and (iii) our portfolio included 6 franchised all inclusive Hyatt-branded resorts, comprising 2,401 rooms, and 3 destination wellness resorts, comprising 399 rooms. At March 31, 2018 , our portfolio of properties operated in 58 countries around the world. As used in these Notes and throughout this Quarterly Report on Form 10-Q , (i) the terms "Hyatt," "Company," "we," "us", or "our" mean Hyatt Hotels Corporation and its consolidated subsidiaries and (ii) the term "portfolio of properties" refers to hotels and other properties, including branded spas and fitness studios and residential vacation ownership units, that we develop, own, operate, manage, franchise, license, or provide services to, including under our Park Hyatt, Miraval, Grand Hyatt, Hyatt Regency, Hyatt, Andaz, Hyatt Centric, The Unbound Collection by Hyatt, Hyatt Place, Hyatt House, Hyatt Ziva, Hyatt Zilara, exhale, and Hyatt Residence Club brands. The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") for interim financial information, the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all information or footnotes required by GAAP for complete annual financial statements. As a result, this Quarterly Report on Form 10-Q should be read in conjunction with the Consolidated Financial Statements and accompanying Notes in our Annual Report on Form 10-K for the fiscal year ended December 31, 2017 (the " 2017 Form 10-K "). We have eliminated all intercompany accounts and transactions in our condensed consolidated financial statements. We consolidate entities under our control, including entities where we are deemed to be the primary beneficiary. Management believes the accompanying condensed consolidated financial statements reflect all adjustments, which are all of a normal recurring nature, considered necessary for a fair presentation of the interim periods.

Recently Issued Accounting Pron

Recently Issued Accounting Pronouncements	3 Months Ended
	Mar. 31, 2018
Accounting Policies [Abstract]
Recently Issued Accounting Pronouncements	RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS Summary of Significant Accounting Policies Our significant accounting policies are detailed in Part IV, Item 15, "Exhibits and Financial Statement Schedule—Note 2 to our Consolidated Financial Statements" within the 2017 Form 10-K. Upon adoption of Accounting Standards Update No. 2014-09 ("ASU 2014-09"), Revenue from Contracts with Customers (Topic 606) and Accounting Standards Update No. 2016-01 ("ASU 2016-01"), Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities , our accounting policies have been updated as follows: Revenue Recognition —Our revenues are primarily derived from the following products and services and are generally recognized when control of the product or service has transferred to the customer: • Owned and leased hotels revenues: • Owned and leased hotels revenues are derived from room rentals and services provided at our owned and leased properties and are recognized over time as rooms are occupied and when services are rendered. We present revenue net of sales, occupancy, and other taxes. Taxes collected on behalf of and remitted to governmental taxing authorities are excluded from the transaction price of the underlying products and services. In relation to the loyalty program, a portion of our owned and leased hotels revenues is deferred upon initial stay as points are earned by program members at an owned or leased hotel, and revenues are recognized upon redemption at an owned or leased hotel. • Management, franchise, and other fees: • Management fees primarily consist of a base fee, which is generally computed as a percentage of gross revenues, and an incentive fee, which is generally computed based on a hotel profitability measure. Management fees are recognized over time as services are performed. Additionally, we recognize royalty fees as owners derive value from access to Hyatt’s intellectual property ("IP"). Incentive fees may be subject to minimum annual profitability thresholds, and we recognize incentive fee revenues over time as services are rendered only to the extent that a significant reversal is not probable. • Franchise fees consist of an initial fee and ongoing royalty fees calculated based on a percentage of gross room revenues and, as applicable, food and beverage revenues. Royalty fees are recognized over time as franchisees derive value from the license to Hyatt's IP, including Hyatt's brand names. Initial fees are deferred and recognized over the expected customer life, which is typically the initial term of the franchise agreement. • Management, franchise, and other fees include license fees revenue associated with the licensing of the Hyatt brand name through our co-branded credit card program. License fee revenue is recognized over time as the licensee derives value from access to Hyatt’s brand names. • Net management, franchise, and other fees are reduced by the amortization of management and franchise agreement assets constituting payments to customers ("Contra Revenue"). Consideration provided to customers is recognized in other assets and amortized over the expected customer life, which is typically the initial term of the management or franchise agreement. • Other revenues: • Other revenues include revenues from the sale of promotional awards through our co-branded credit card and spa and fitness revenues from exhale. We recognize the revenue from our co-branded credit card upon the fulfillment or expiration of a card member's promotional awards. Revenue is recognized net of expenses incurred to fulfill the promotional award as we are deemed to be the agent in the transaction. Spa and fitness revenue is recognized at the point in time the products or services are provided to the customer. • Revenues for the reimbursement of costs incurred on behalf of managed and franchised properties: • Revenues for the reimbursement of costs incurred on behalf of managed and franchised properties represent the reimbursement of costs incurred on behalf of the owners of properties. These costs relate primarily to payroll costs at managed properties where we are the employer, as well as costs associated with reservations, sales, marketing, technology (collectively, "systemwide services"), and the loyalty program operated on behalf of owners of managed and franchised properties. Hyatt is reimbursed for costs incurred based on the terms of the contracts, and revenue is recognized as the underlying performance obligations are satisfied. Gains on Sales of Real Estate —Gains on sales of real estate are generally recognized when control of the property transfers to the buyer and recognized through gains on sales of real estate in our condensed consolidated statements of income. Equity Method Investments —We have investments in unconsolidated hospitality ventures recorded under the equity method. These investments are an integral part of our business and are strategically and operationally important to our overall results. When we receive a distribution from an investment, we determine whether it is a return on our investment or a return of our investment based on the underlying nature of the distribution. We assess investments in unconsolidated hospitality ventures for impairment quarterly. Debt and Equity Securities —Debt and equity securities consist of various investments, excluding equity securities classified as equity method investments: • Equity securities consist of interest bearing money market funds, mutual funds, common shares, and preferred shares. Equity securities with a readily determinable fair value are recorded at fair value on our condensed consolidated balance sheets based on listed market prices or dealer quotations where available. Equity investments without a readily determinable fair value are recognized at cost less any impairment, plus or minus changes resulting from observable price changes in orderly transactions for the identical or similar investment of the same issuer. • Our investments in debt securities consist of various types including preferred shares, time deposits, and fixed income securities, including U.S. government obligations, obligations of other government agencies, corporate debt, mortgage-backed and asset-backed securities, and municipal and provincial notes and bonds. Debt securities are classified as either trading, available for sale ("AFS"), or held to maturity ("HTM"). • Trading securities—recorded at fair value based on listed market prices or dealer price quotations where available. Net gains and losses on trading securities are reflected in net gains and interest income from marketable securities held to fund rabbi trusts or other income (loss), net, depending on the nature of the investment, on our condensed consolidated statements of income. • AFS securities—recorded at fair value based on listed market prices or dealer price quotations, where available. Unrealized gains and losses on AFS debt securities are recognized in accumulated other comprehensive loss on our condensed consolidated balance sheets. Realized gains and losses on debt securities are recognized in other income (loss), net on our condensed consolidated statements of income. • HTM securities—debt security investments which we have the ability to hold until maturity and are recorded at amortized cost. AFS and HTM debt securities are assessed for impairment quarterly. Loyalty Program —We administer the loyalty program for the benefit of the Hyatt portfolio of properties owned, operated, managed, franchised, or licensed by us during the period of their participation in the loyalty program. The loyalty program is primarily funded through contributions from eligible revenues from loyalty program members, and the funds are used for the redemption of member awards associated with the loyalty program and payment of operating expenses. The costs of operating the loyalty program, including the estimated cost of award redemption, are charged to the participating properties based on members' qualified expenditures. The revenues received from the properties are deferred, and revenue is recognized as loyalty points are redeemed, net of redemption expense, through revenues for the reimbursement of costs incurred on behalf of managed and franchised properties. Operating costs are expensed as incurred through costs incurred on behalf of managed and franchised properties. We actuarially determine the amount to recognize as revenue when points are redeemed, based on statistical formulas that estimate the timing of future point redemptions based on historical experience, including an estimate of breakage for points that will not be redeemed, and an estimate of the points that will eventually be redeemed. Any revenue in excess of the anticipated future redemptions is used to fund the operational expenses of the program. The loyalty program is financed by payments from the properties and returns on marketable securities. The program invests amounts received from the properties in marketable securities which are included in other current and noncurrent assets (see Note 4). The current and noncurrent liabilities of the loyalty program are classified as contract liabilities (see Note 3). Adopted Accounting Standards Revenue from Contracts with Customers —In May 2014, the Financial Accounting Standards Board ("FASB") released ASU 2014-09. ASU 2014-09 supersedes the requirements in Topic 605, Revenue Recognition , and provides a single, comprehensive revenue recognition model for contracts with customers. Subsequently, the FASB issued several related ASUs which further clarify the application of the standard including ASU 2015-14, which delayed the effective date by one year making it effective for interim and fiscal years beginning after December 14, 2017. We adopted ASU 2014-09, and all related ASUs, utilizing the full retrospective transition method on January 1, 2018, which required us to adjust each prior reporting period presented. The adoption of ASU 2014-09 impacts the timing of the recognition of gains on sales of real estate subject to a long-term management agreement, and the associated impact to deferred tax assets (see Note 11), the classification of Contra Revenue, and the timing of revenue recognition related to incentive fees. However, we do not expect the new standard to have a significant impact on incentive fee revenue on a full-year basis. The adoption of ASU 2014-09 also impacts the timing of revenue recognition related to the loyalty program and as a result of the change, we recorded an increase of $116 million to the contract liability related to the loyalty program as of January 1, 2018. Upon adoption of ASU 2014-09, we recognized a cumulative effect of a change in accounting principle through retained earnings, including a reclassification of $523 million related to deferred gains at January 1, 2018. We also reclassified certain management and franchise agreement assets from intangibles, net to other assets and certain current and long-term liabilities to current and long-term contract liabilities. Financial Instruments - Recognition, Measurement, Presentation, and Disclosure —In January 2016, the FASB released ASU 2016-01 . ASU 2016-01 revised the accounting for equity investments, excluding those accounted for under the equity method, and the presentation and disclosure requirements for financial instruments. ASU 2016-01 superseded the guidance to classify equity securities with readily determinable fair values into different categories (i.e., trading versus AFS) and requires all equity securities to be measured at fair value on a recurring basis unless an equity security does not have a readily determinable fair value. Equity securities without a readily determinable fair value are remeasured at fair value only in periods in which an observable price change is available or upon identification of an impairment. All changes in fair value are recognized in net income on our condensed consolidated statements of income. On January 1, 2018, we adopted the provisions of ASU 2016-01 on a modified retrospective basis through a cumulative-effect adjustment to our opening condensed consolidated balance sheet. Upon adoption, unrealized gains of $68 million , net of tax, were reclassified from accumulated other comprehensive loss to opening retained earnings. Changes in fair value are recognized in other income (loss), net on our condensed consolidated statements of income. Accounting for Income Taxes - Intra-Entity Asset Transfers —In October 2016, the FASB released Accounting Standards Update No. 2016-16 ("ASU 2016-16"), Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory . ASU 2016-16 requires an entity to recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. We adopted ASU 2016-16 on January 1, 2018 on a modified retrospective basis, resulting in a decrease of $4 million to retained earnings. Statement of Cash Flows - Restricted Cash —In November 2016, the FASB released Accounting Standards Update No. 2016-18 ("ASU 2016-18"), Statement of Cash Flows (Topic 230): Restricted Cash (a consensus of the FASB Emerging Issues Task Force) . ASU 2016-18 requires amounts generally described as restricted cash to be included within cash and cash equivalents when reconciling the total beginning and ending amounts for the periods shown on the condensed consolidated statements of cash flows. We adopted the provisions of ASU 2016-18 on January 1, 2018 on a retrospective basis. Upon adoption of ASU 2016-18, restricted cash of $249 million , including $15 million which is recognized within other assets on our consolidated balance sheet at December 31, 2017, is included within the beginning balance of cash and cash equivalents on our condensed consolidated statement of cash flows for the three months ending March 31, 2018. The table below summarizes the effect on our condensed consolidated statements of cash flows for the three months ended March 31, 2017: Three Months Ended March 31, Increase/(decrease) 2017 Operating activities $ (6 ) Investing activities (5 ) Financing activities (1 ) Cash, cash equivalents, and restricted cash - beginning of year 91 Cash, cash equivalents, and restricted cash - end of period $ 79 Business Combinations - Definition of a Business —In January 2017, the FASB released Accounting Standards Update No. 2017-01 ("ASU 2017-01"), Business Combinations (Topic 805): Clarifying the Definition of a Business . ASU 2017-01 clarifies the definition of a business to assist entities with evaluating whether transactions should be accounted for as acquisitions or disposals of assets or businesses. Generally, our acquisitions of individual hotels were previously accounted for as business combinations, however, upon adoption of ASU 2017-01, there is an increased likelihood that certain acquisitions of individual hotels will be accounted for as asset acquisitions. We do not expect ASU 2017-01 to have a significant impact on our accounting for the disposition of assets as we generally account for disposals as sales of assets. We adopted ASU 2017-01 on January 1, 2018 on a prospective basis, and we will evaluate the impact of the standard on future transactions based on the relevant facts and circumstances. The impact of the changes made to our condensed consolidated financial statements as a result of the adoption of ASU 2014-09, ASU 2016-01, and ASU 2016-16 were as follows: Three Months Ended March 31, 2017 As Reported Effect of the adoption of As Adjusted REVENUES: Owned and leased hotels $ 572 $ (3 ) $ 569 Management, franchise, and other fees 122 (8 ) 114 Amortization of management and franchise agreement assets constituting payments to customers — (4 ) (4 ) Net management, franchise, and other fees 122 (12 ) 110 Other revenues 22 (5 ) 17 Revenues for the reimbursement of costs incurred on behalf of managed and franchised properties 471 (41 ) 430 Total revenues 1,187 (61 ) 1,126 DIRECT AND SELLING, GENERAL, AND ADMINISTRATIVE EXPENSES: Owned and leased hotels 427 (3 ) 424 Depreciation and amortization 91 (4 ) 87 Other direct costs 19 (3 ) 16 Selling, general, and administrative 99 — 99 Costs incurred on behalf of managed and franchised properties 471 (26 ) 445 Direct and selling, general, and administrative expenses 1,107 (36 ) 1,071 Net gains and interest income from marketable securities held to fund rabbi trusts 15 — 15 Equity losses from unconsolidated hospitality ventures (3 ) — (3 ) Interest expense (21 ) — (21 ) Other income (loss), net 40 3 43 INCOME BEFORE INCOME TAXES 111 (22 ) 89 PROVISION FOR INCOME TAXES (41 ) 7 (34 ) NET INCOME 70 (15 ) 55 NET INCOME AND ACCRETION ATTRIBUTABLE TO NONCONTROLLING INTERESTS — — — NET INCOME ATTRIBUTABLE TO HYATT HOTELS CORPORATION $ 70 $ (15 ) $ 55 EARNINGS PER SHARE—Basic Net income $ 0.54 $ (0.11 ) $ 0.43 Net income attributable to Hyatt Hotels Corporation $ 0.54 $ (0.11 ) $ 0.43 EARNINGS PER SHARE—Diluted Net income $ 0.54 $ (0.12 ) $ 0.42 Net income attributable to Hyatt Hotels Corporation $ 0.54 $ (0.12 ) $ 0.42 December 31, 2017 January 1, 2018 As Reported Effect of the adoption of As Adjusted Effect of the adoption of ASU 2016-01 and ASU 2016-16 As Adjusted ASSETS Investments $ 211 $ 1 $ 212 $ (27 ) $ 185 Intangibles, net 683 (378 ) 305 — 305 Deferred tax assets 242 (101 ) 141 1 142 Other assets 1,006 378 1,384 22 1,406 TOTAL ASSETS 7,672 (100 ) 7,572 (4 ) 7,568 LIABILITIES, REDEEMABLE NONCONTROLLING INTEREST, AND EQUITY Accounts payable $ 175 $ (39 ) $ 136 $ — $ 136 Accrued expenses and other current liabilities 635 (283 ) 352 — 352 Current contract liabilities — 348 348 — 348 Long-term contract liabilities — 424 424 — 424 Other long-term liabilities 1,725 (862 ) 863 — 863 Total liabilities 4,131 (412 ) 3,719 — 3,719 Retained earnings 2,742 312 3,054 64 3,118 Accumulated other comprehensive loss (185 ) — (185 ) (68 ) (253 ) Total equity 3,531 312 3,843 (4 ) 3,839 TOTAL LIABILITIES, REDEEMABLE NONCONTROLLING INTEREST, AND EQUITY 7,672 (100 ) 7,572 (4 ) 7,568 The adoption of ASU 2014-09 resulted in a reclassification of $3 million from investing into operating activities related to cash outflows representing payments to customers. There were no impacts to cash provided by or used in financing activities on our condensed consolidated statements of cash flows. Future Adoption of Accounting Standards Leases —In February 2016, the FASB released Accounting Standards Update No. 2016-02 ("ASU 2016-02"), Leases (Topic 842) . ASU 2016-02 requires lessees to record lease contracts on the balance sheet by recognizing a right-of-use asset and lease liability; the accounting for lessors remains largely unchanged. The provisions of ASU 2016-02 are to be applied using a modified retrospective approach and are effective for interim periods and fiscal years beginning after December 15, 2018, with early adoption permitted. The real estate leases for a majority of our owned and leased hotels include contingent lease payments, which will be excluded from the impact of ASU 2016-02. We are currently evaluating the impact of adopting ASU 2016-02 and expect this ASU may have a material effect to our condensed consolidated financial statements. Financial Instruments - Credit Losses —In June 2016, the FASB released Accounting Standards Update No. ("ASU 2016-13"), Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments . ASU 2016-13 replaces the existing impairment model for most financial assets from an incurred loss impairment model to a current expected credit loss model, which requires an entity to recognize an impairment allowance equal to its current estimate of all contractual cash flows the entity does not expect to collect. ASU 2016-13 also requires credit losses relating to AFS debt securities to be recognized through an allowance for credit losses. The provisions of ASU 2016-13 are to be applied using a modified retrospective approach and are effective for interim periods and fiscal years beginning after December 15, 2019, with early adoption permitted. We are currently evaluating the impact of adopting ASU 2016-13.

Revenue Recognition Revenue Rec

Revenue Recognition Revenue Recognition	3 Months Ended
	Mar. 31, 2018
Revenue from Contract with Customer [Abstract]
Revenue Recognition	REVENUE FROM CONTRACTS WITH CUSTOMERS Performance Obligations We provide products and services to our customers, which include third-party hotel owners, guests at owned and leased hotels and spa and fitness centers, and a third-party partner through our co-branded credit card program. The products and services offered by us are comprised of the following performance obligations: • Management and Franchise Agreements: • License to Hyatt’s IP, including the Hyatt brand names —We receive variable consideration from third-party hotel owners in exchange for providing access to our IP, including the Hyatt brand names. The license represents a license of symbolic IP and in exchange for providing the license, Hyatt receives sales-based royalty fees. Royalty fees are generally determined based on a percentage of gross revenues for managed hotels and are generally included in the hotel management fee. Royalty fees for franchised hotels are based on a percentage of gross room revenues and, as applicable, food and beverage revenues. Fees are generally payable on a monthly basis as the third-party hotel owners derive value from access to our IP. Royalty fees are recognized over time through management, franchise, and other fees as services are rendered. Under our franchise agreements, we also receive initial fees from third-party hotel owners. The initial fees do not relate to a distinct performance obligation and, therefore, are combined with the royalty fees and recognized through management, franchise, and other fees over the expected customer life, which is typically the initial term of the agreement. • Systemwide services —We provide sales, reservations, technology, and marketing services on behalf of owners of managed and franchised properties. The promise to provide systemwide services is not a distinct performance obligation because it is attendant to the license of our IP. Therefore, the promise to provide systemwide services is combined with the license of our IP to form a single performance obligation. We have two accounting models depending on the terms of the agreement: • Cost reimbursement model —Third-party hotel owners are required to reimburse us for all costs incurred to operate the systemwide programs with no added margin. The reimbursements are recognized over time within revenues for the reimbursement of costs incurred on behalf of managed and franchised properties. We have discretion over how we spend program revenues and, therefore, we are the principal with respect to the promise to provide systemwide services. Expenses incurred related to our sales, reservations, technology, and marketing programs are recognized within costs incurred on behalf of managed and franchised properties. The reimbursement of systemwide services is billed on a monthly basis based upon an annual estimate of costs to be incurred and are recognized as revenue commensurate with incurring the cost. To the extent that actual costs vary from estimated costs, a true-up billing or refund is issued to the hotels. Any amounts collected and not yet recognized as revenues are deferred and recognized as contract liabilities. Any costs incurred in excess of revenues collected are recognized as receivables. • Fund model —Third-party hotel owners are invoiced a systemwide assessment fee primarily based on a percentage of hotel revenues on a monthly basis. We recognize the revenues over time as services are provided through revenues for the reimbursement of costs incurred on behalf of managed and franchised properties. We have discretion over how we spend program revenues and, therefore, we are the principal with respect to systemwide services. Expenses related to the sales, reservations, technology, and marketing programs are recognized as incurred through costs incurred on behalf of managed and franchised properties. Over time, we manage the systemwide programs to break-even, but the timing of the revenue received from the owners may not align with the timing of the expenses to operate the programs and, therefore, the difference between the revenues and expenses may impact our net income. • Hotel management agreement services —We provide hotel management agreement services, which form a single performance obligation that qualifies as a series, under the terms of our management agreements. In exchange for providing these services, we receive variable consideration in the form of management fees, which are comprised of base and incentive fees. Incentive fees are typically subject to the achievement of certain annual profitability targets, and therefore, we apply judgment in determining the amount of incentive fees recognized each period. Incentive fees revenue is recognized to the extent it is probable that we will not reverse a significant portion of the fees in a subsequent period. We rely on internal financial forecasts and historical trends to estimate the amount of incentive fees revenue recognized and the probability that incentive fees will reverse in the future. Generally, base management fees are due and payable on a monthly basis as services are provided, and incentive fees are due and payable based on the terms of the agreement, but at a minimum, incentive fees are billed and collected annually. Revenue is recognized over time through management, franchise, and other fees. Under the terms of certain management agreements, primarily within the United States, we are the employer of hotel employees. When we are the employer, we are reimbursed for costs incurred related to the employee management services with no added margin, and the reimbursements are recognized over time as services are rendered within revenues for the reimbursement of costs incurred on behalf of managed and franchised properties. In jurisdictions in which we are the employer, we have discretion over how employee management services are provided and, therefore, we are the principal and revenues are recognized on a gross basis. • Loyalty program administration —We administer a loyalty program for the benefit of the Hyatt portfolio of properties owned, managed, franchised, or licensed by us. Under the program, members earn loyalty points that can be redeemed for future products and services. Points earned by loyalty program members represent a material right to free or discounted goods or services in the future. The loyalty program has one performance obligation that consists of marketing and managing the program and arranging for award redemptions by members. The costs of operating the loyalty program are charged to the properties through an assessment fee based on members’ qualified expenditures. The assessment fee is billed and collected monthly, and the revenue received by the program is deferred until a member redeems points. Upon redemption of points at managed and franchised properties, we recognize the previously deferred revenue through revenues for the reimbursement of costs incurred on behalf of managed and franchised properties, net of redemption expense paid to managed and franchised hotels, as we are an agent in the transaction. We are responsible for arranging for the redemption of promotional awards, but we do not directly fulfill the award night obligation, except at owned and leased hotels. Therefore, we are the agent with respect to this performance obligation for managed and franchised hotels, and we are the principal with respect to owned hotels. When loyalty points are redeemed at owned and leased hotels, we recognize revenue through owned and leased hotels revenues on our condensed consolidated statements of income. The revenue recognized each period includes an estimate of breakage for the loyalty points that will not be redeemed. Determining breakage involves significant judgment, and we engage third-party actuaries to estimate the ultimate redemption ratios used in the breakage calculations and to estimate the amount of revenue recognized upon redemption. Changes to the expected ultimate redemption assumptions are reflected in the current period. • Room rentals and other services provided at owned and leased hotels —We provide room rentals and other services to our guests, including but not limited to spa, laundry, and parking. These products and services each represent individual performance obligations and, in exchange for these services, we receive fixed amounts based on published rates or negotiated contracts. Payment is due in full at the time the services are rendered or the goods are provided. If a guest enters into a package including multiple goods or services, the fixed price is allocated to each distinct good or service based on the stand-alone selling price for each item. Revenue is recognized over time within owned and leased hotels revenues when we transfer control of the good or service to the customer. Room rental revenue is recognized on a daily basis as the guest occupies the room, and revenue related to other products and services is recognized when the product or service is provided to the guest. Hotels commonly enter into arrangements with online travel agencies, trade associations, and other entities. As part of these arrangements, Hyatt may pay the other party a commission or rebate based on the revenue generated through that channel. The determination of whether to recognize revenues gross or net of rebates and commission is made based on the terms of each contract. Due to the nature of our business, our fees are not significantly impacted by refunds or returns. Prepayments are refunded to hotel guests if the guest cancels within the specified time period, before any services are rendered. Refunds related to service are generally recognized as an adjustment to the transaction price at the time the hotel stay occurs or services are rendered. • Spa and fitness services —Exhale spa and fitness studios provide guests with spa and fitness services as well as retail products in exchange for fixed consideration. Each spa and fitness service represents an individual performance obligation. Payment is due in full and revenue is recognized at the point in time the services are rendered or the products are delivered. If a guest purchases a spa or fitness package, the fixed price is allocated to each distinct product or service based on the published stand-alone selling price for each item and revenues are recognized as the services are rendered. • Co-branded credit card —We have a co-branded credit card agreement with a third party and under the terms of the agreement, we have various performance obligations: granting a license to the Hyatt name, arranging for the fulfillment of points issued to cardholders through the loyalty program, and awarding cardholders with free room nights upon achievement of certain program milestones. The loyalty points and free room nights represent material rights that can be redeemed for free or discounted services in the future. In exchange for the products and services provided, we receive fixed and variable consideration that is allocated between the performance obligations based upon the relative stand-alone selling prices. Significant judgment is involved in determining the relative stand-alone selling prices, and therefore, we engaged a third-party valuation specialist to assist us. We utilized a relief from royalty method to determine the revenue allocated to the license, which is recognized over time. We utilized observable transaction prices and adjusted market assumptions to determine the stand-alone selling price of a loyalty point and we utilized a cost plus margin approach to determine the stand-alone selling price of the free room nights. The revenues allocated to loyalty program points and free night awards are deferred and recognized upon redemption, net of redemption expenses, as we are deemed to be the agent in the transaction. We are responsible for arranging for the redemption of promotional awards, but we do not directly fulfill the award night obligation, except at owned and leased hotels. Therefore, we are the agent for managed and franchised hotels and we are the principal with respect to owned hotels. When loyalty points and free nights are redeemed at owned and leased hotels, we recognize revenue through owned and leased hotels revenues on our condensed consolidated statements of income. We satisfy the following performance obligations over time: the license of Hyatt’s symbolic IP, hotel management agreement services, administration of the loyalty program, and the license to our brand name through our co-branded credit card agreement. Each of these performance obligations is considered a sales-based royalty or a series of distinct services, and although the activities to fulfill each of these promises may vary from day to day, the nature of each promise is the same and the customer benefits from the services every day. For each performance obligation satisfied over time, we recognize revenue using an output method based on the value transferred to the customer. Revenue is recognized based on the transaction price and the observable outputs related to each performance obligation. We deem the following to be a faithful depiction of our progress in satisfying these performance obligations: • revenues and operating profits earned by the hotels during the reporting period for access to Hyatt’s IP and brand names, as they are indicative of the value third-party owners derive; • underlying revenues and operating profits of the hotels for the promise to provide management agreement services to the hotels; • award night redemptions for the administration of the loyalty program performance obligation; and • cardholder spend for the license to our brand name through our co-branded credit card, as it is indicative of the value our partner derives from the use of our name. Within our management agreements, we have two performance obligations: providing a license to Hyatt’s IP and providing management agreement services. Although these constitute two separate performance obligations, both obligations represent services that are satisfied over time, and Hyatt recognizes revenue using an output method based on the performance of the hotel. Therefore, we have not allocated the transaction price between these two performance obligations as the allocation would result in the same pattern of revenue recognition. Disaggregated Revenues The following tables present our revenues disaggregated by the nature of the product or service: Three months ended March 31, 2018 Disaggregated revenue stream Owned and leased hotels Americas management and franchising ASPAC management and franchising EAME/SW Asia management and franchising Corporate and other Eliminations Total Rooms revenues $ 297 $ — $ — $ — $ 7 $ (9 ) $ 295 Food and beverage 172 — — — 2 — 174 Other 38 — — — 8 — 46 Owned and leased hotels 507 — — — 17 (9 ) 515 Base management fees — 49 11 7 — (14 ) 53 Incentive management fees — 13 17 10 — (6 ) 34 Franchise fees — 28 — — — — 28 Other fees — 8 2 1 1 — 12 License fees — — — — 5 — 5 Management, franchise, and other fees — 98 30 18 6 (20 ) 132 Contra revenue — (3 ) (1 ) (1 ) — — (5 ) Net management, franchise, and other fees — 95 29 17 6 (20 ) 127 Other revenues — — — — 9 2 11 Revenues for the reimbursement of costs incurred on behalf of managed and franchised properties — 420 20 16 — — 456 Total $ 507 $ 515 $ 49 $ 33 $ 32 $ (27 ) $ 1,109 Three months ended March 31, 2017 Disaggregated revenue stream Owned and leased hotels Americas management and franchising ASPAC management and franchising EAME/SW Asia management and franchising Corporate and other Eliminations Total Rooms revenues $ 326 $ — $ — $ — $ 6 $ (9 ) $ 323 Food and beverage 195 — — — 3 — 198 Other 41 — — — 7 — 48 Owned and leased hotels 562 — — — 16 (9 ) 569 Base management fees — 48 9 6 — (16 ) 47 Incentive management fees — 12 14 9 — (5 ) 30 Franchise fees — 25 1 — — — 26 Other fees — 5 1 1 — — 7 License fees — — — — 4 — 4 Management, franchise, and other fees — 90 25 16 4 (21 ) 114 Contra revenue — (3 ) — (1 ) — — (4 ) Net management, franchise, and other fees — 87 25 15 4 (21 ) 110 Other revenues 13 — — — 2 2 17 Revenues for the reimbursement of costs incurred on behalf of managed and franchised properties — 401 17 12 — — 430 Total $ 575 $ 488 $ 42 $ 27 $ 22 $ (28 ) $ 1,126 Contract Balances Our payments from customers are based on the billing terms established in our contracts. Customer billings are classified as accounts receivable when our right to consideration is unconditional. If our right to consideration is conditional on future performance under the contract, the balance is classified as a contract asset. Under the terms of our management agreements, we earn incentive management fees based on a percentage of hotel profitability. The incentive fee may be contingent on the hotel achieving certain annual profitability targets. We recognize an incentive fee receivable each month to the extent it is probable that we will not reverse a significant portion of the fees in a subsequent period. However, due to the profitability hurdles in the contract, incentive fees are considered contract assets until the risk related to the achievement of the profitability metric no longer exists. Once the annual profitability hurdle has been met, the incentive fee receivable balance will be reflected within accounts receivable. Our contract assets were $21 million and insignificant at March 31, 2018 and December 31, 2017, respectively. At March 31, 2018, the contract assets were included in receivables, net. As our profitability hurdles are generally calculated on a full-year basis, we expect our contract asset balance to be insignificant at year-end. Payments received in advance of performance under the contract are classified as contract liabilities and recognized as revenue as we perform under the contract. Contract liabilities consisted of the following at March 31, 2018 and December 31, 2017: March 31, 2018 December 31, 2017 $ Change % Change Contract liabilities - current $ 334 $ 348 $ (14 ) (4.1 )% Contract liabilities - noncurrent 431 424 7 1.9 % Total contract liabilities $ 765 $ 772 $ (7 ) (0.8 )% At March 31, 2018 and December 31, 2017, the contract liabilities balances above include the following: March 31, 2018 December 31, 2017 Advanced deposits $ 51 $ 59 Deferred revenue related to the loyalty program 570 561 Deferred revenue related to systemwide services 11 9 Initial fees received from franchise owners 29 27 Other deferred revenue 104 116 Total contract liabilities $ 765 $ 772 Revenue recognized during the three months ended March 31, 2018 and March 31, 2017 included in the contract liability balance at the beginning of each year was $224 million and $215 million , respectively. This revenue was primarily related to revenue from the loyalty program, which is recognized net of redemption reimbursements paid to third parties. Revenue Allocated to Remaining Performance Obligations Revenue allocated to remaining performance obligations represents contracted revenue that has not yet been recognized, which includes deferred revenue and amounts that will be invoiced and recognized as revenue in future periods. Contracted revenue expected to be recognized in future periods was approximately $160 million at March 31, 2018, of which we expect to recognize approximately 45% of the revenue over the next 12 months and the remainder thereafter. We did not estimate revenues expected to be recognized related to our unsatisfied performance obligations for the following: • Deferred revenue related to the loyalty program and revenue from base and incentive management fees are not included in the contracted revenue above, as the revenue is allocated to a wholly unperformed performance obligation in a series; • Revenues related to royalty fees as they are considered sales-based royalty fees; and • Revenues received for free nights granted through our co-branded credit card as the awards are required to be redeemed within 12 months. We elected to apply the practical expedient that permits the omission of prior period information about revenue allocated to future performance obligations under ASU 2014-09. Incremental Costs to Obtain a Contract We did not incur significant costs to obtain a contract and generally any costs are expensed as incurred, as the amortization period would be less than one year.

Debt and Equity Securities

Debt and Equity Securities	3 Months Ended
	Mar. 31, 2018
Investments, Debt and Equity Securities [Abstract]
Debt and Equity Securities	DEBT AND EQUITY SECURITIES We make investments in debt and equity securities that we believe are strategically and operationally important to our business. These investments take the form of (i) equity method investments where we have the ability to significantly influence the operations of the entity, (ii) marketable securities held to fund operating programs and for investment purposes, and (iii) other types of investments. Equity Method Investments March 31, 2018 December 31, 2017 Equity method investments $ 174 $ 185 During the three months ended March 31, 2018 , we sold our ownership interest in an equity method investment within our owned and leased hotels segment for which we received proceeds of $ 9 million . We recognized a gain of $ 8 million in equity losses from unconsolidated hospitality ventures on our condensed consolidated statements of income. During the three months ended March 31, 2017 , an unconsolidated hospitality venture within our owned and leased hotels segment sold a Hyatt Place hotel. We received proceeds of $4 million and recognized a gain of $2 million in equity losses from unconsolidated hospitality ventures on our condensed consolidated statements of income. During the three months ended March 31, 2018 , we recognized impairment charges of $16 million as a result of the buyout of our partner's interest in unconsolidated hospitality ventures in Brazil, which was initiated in the first quarter of 2018 and completed subsequent to March 31, 2018. The pending acquisition indicated a carrying value in excess of fair value, which was determined to be a Level Three fair value measure and was deemed other-than-temporary. Therefore, we recognized the impairment charges. During the three months ended March 31, 2017 , we recognized insignificant impairment charges. These charges are recognized in equity losses from unconsolidated hospitality ventures on our condensed consolidated statements of income. The following table presents summarized financial information for all unconsolidated hospitality ventures in which we hold an investment accounted for under the equity method: Three Months Ended March 31, 2018 2017 Total revenues $ 132 $ 274 Gross operating profit 39 78 Loss from continuing operations (19 ) (18 ) Net loss (19 ) (18 ) Marketable Securities We hold marketable securities with readily determinable fair values to fund certain operating programs and for investment purposes. Additionally, we periodically transfer available cash and cash equivalents to purchase marketable securities for investment purposes. Marketable Securities Held to Fund Operating Programs —Marketable securities held to fund operating programs, which are recorded at fair value and included on our condensed consolidated balance sheets, were as follows: March 31, 2018 December 31, 2017 Loyalty program $ 389 $ 403 Deferred compensation plans held in rabbi trusts (Note 8 and 10) 409 402 Captive insurance companies 111 111 Total marketable securities held to fund operating programs $ 909 $ 916 Less current portion of marketable securities held to fund operating programs included in cash and cash equivalents, short-term investments, and prepaids and other assets (151 ) (156 ) Marketable securities held to fund operating programs included in other assets $ 758 $ 760 Net realized and unrealized gains (losses) and interest income from marketable securities held to fund the loyalty program are recognized in other income (loss), net on our condensed consolidated statements of income: Three Months Ended March 31, 2018 2017 Loyalty program $ (4 ) $ 3 Net realized and unrealized gains (losses) and interest income from marketable securities held to fund rabbi trusts are recognized in net gains and interest income from marketable securities held to fund rabbi trusts on our condensed consolidated statements of income: Three Months Ended March 31, 2018 2017 Unrealized gains (losses) $ (1 ) $ 11 Realized gains 4 4 Net gains and interest income from marketable securities held to fund rabbi trusts $ 3 $ 15 Our captive insurance companies hold marketable securities which are classified as AFS debt securities and are invested in U.S. government agencies, time deposits, and corporate debt securities. We classify these investments as current or long-term, based on their contractual maturity dates, which range from 2018 through 2022. Marketable Securities Held for Investment Purposes —Marketable securities held for investment purposes, which are recorded at fair value and included on our condensed consolidated balance sheets, were as follows: March 31, 2018 December 31, 2017 Interest bearing money market funds $ 9 $ 26 Time deposits 37 37 Common shares 124 131 Total marketable securities held for investment purposes $ 170 $ 194 Less current portion of marketable securities held for investment purposes included in cash and cash equivalents and short-term investments (46 ) (63 ) Marketable securities held for investment purposes included in other assets $ 124 $ 131 During 2013, we invested in the common shares of Playa Hotels & Resorts B.V. ("Playa"), and we accounted for our common share investment as an equity method investment. In March 2017, Playa completed a business combination. Playa Hotels & Resorts N.V. ("Playa N.V.") is now publicly traded on the NASDAQ and our ownership percentage was diluted to 11.57% . As we no longer have the ability to significantly influence Playa N.V., our investment was recharacterized as an equity security with a readily determinable fair value in March 2017. The fair value of the common shares is classified as Level One in the fair value hierarchy as we are able to obtain market available pricing information. The remeasurement of our investment at fair value resulted in unrealized losses of $7 million recognized in other income (loss), net for the period ending March 31, 2018 (see Note 18). We did not sell any shares of common stock during the quarter. Other Investments Preferred shares —During 2013, we also invested $271 million in Playa for convertible redeemable preferred shares which were classified as an AFS debt security. The fair value of the preferred shares was: 2017 Fair value at January 1 $ 290 Gross unrealized losses (54 ) Realized losses (1) (Note 18) (40 ) Interest income (Note 18) 94 Cash redemption (290 ) Fair value at March 31 $ — (1) The realized losses were the result of a difference between the fair value of the initial investment and the contractual redemption price of $8.40 per share. HTM Debt Securities —At March 31, 2018 and December 31, 2017 , we held investments in HTM debt securities of $47 million , respectively, which are investments in third-party entities that own certain of our hotels and are recorded within other assets in our condensed consolidated balance sheets. The securities are mandatorily redeemable between 2020 and 2025. The amortized cost of our investments approximate fair value. We estimated the fair value of our investments using internally developed discounted cash flow models based on current market inputs for similar types of arrangements. Based upon the lack of available market data, our investments are classified as Level Three within the fair value hierarchy. The primary sensitivity in these calculations is based on the selection of appropriate discount rates. Fluctuations in these assumptions could result in different estimates of fair value. Equity Securities Without a Readily Determinable Fair Value —At March 31, 2018 and December 31, 2017, we had investments of $27 million in equity securities without a readily determinable fair value, which represent investments in entities where we do not have the ability to significantly influence the operations of the entity. At December 31, 2017, the securities were included in investments on our condensed consolidated balance sheets. As a result of the adoption of ASU 2016-01 on January 1, 2018, we have reclassified the investments to other assets on our condensed consolidated balance sheet at March 31, 2018. Fair Value —We measured the following financial assets at fair value on a recurring basis: March 31, 2018 Cash and cash equivalents Short-term investments Prepaids and other assets Other assets Level One - Quoted Prices in Active Markets for Identical Assets Interest bearing money market funds $ 60 $ 60 $ — $ — $ — Mutual funds 409 — — — 409 Common shares 124 — — — 124 Level Two - Significant Other Observable Inputs Time deposits 50 — 40 — 10 U.S. government obligations 152 — — 33 119 U.S. government agencies 46 — 2 6 38 Corporate debt securities 170 — 12 29 129 Mortgage-backed securities 24 — — 5 19 Asset-backed securities 41 — — 9 32 Municipal and provincial notes and bonds 3 — — 1 2 Total $ 1,079 $ 60 $ 54 $ 83 $ 882 December 31, 2017 Cash and cash equivalents Short-term investments Prepaids and other assets Other assets Level One - Quoted Prices in Active Markets for Identical Assets Interest bearing money market funds $ 75 $ 75 $ — $ — $ — Mutual funds 402 — — — 402 Common shares 131 — — — 131 Level Two - Significant Other Observable Inputs Time deposits 50 — 39 — 11 U.S. government obligations 158 — — 38 120 U.S. government agencies 47 — 2 7 38 Corporate debt securities 179 — 8 33 138 Mortgage-backed securities 25 — — 6 19 Asset-backed securities 40 — — 10 30 Municipal and provincial notes and bonds 3 — — 1 2 Total $ 1,110 $ 75 $ 49 $ 95 $ 891 During the three months ended March 31, 2018 and March 31, 2017 , there were no transfers between levels of the fair value hierarchy. We do not have non-financial assets or non-financial liabilities required to be measured at fair value on a recurring basis.

Financing Receivables

Financing Receivables	3 Months Ended
	Mar. 31, 2018
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Financing Receivables	FINANCING RECEIVABLES March 31, 2018 December 31, 2017 Unsecured financing to hotel owners $ 128 $ 127 Less allowance for losses (109 ) (108 ) Less current portion included in receivables, net (1 ) — Total long-term financing receivables, net of allowances $ 18 $ 19 Allowance for Losses and Impairments —The following table summarizes the activity in our unsecured financing receivables allowance: 2018 2017 Allowance at January 1 $ 108 $ 100 Provisions 2 2 Other adjustments (1 ) 1 Allowance at March 31 $ 109 $ 103 Credit Monitoring —Our unsecured financing receivables were as follows: March 31, 2018 Gross loan balance (principal and interest) Related allowance Net financing receivables Gross receivables on non-accrual status Loans $ 14 $ — $ 14 $ — Impaired loans (1) 59 (59 ) — 59 Total loans 73 (59 ) 14 59 Other financing arrangements 55 (50 ) 5 50 Total unsecured financing receivables $ 128 $ (109 ) $ 19 $ 109 (1) The unpaid principal balance was $44 million and the average recorded loan balance was $59 million at March 31, 2018 . December 31, 2017 Gross loan balance (principal and interest) Related allowance Net financing receivables Gross receivables on non-accrual status Loans $ 13 $ — $ 13 $ — Impaired loans (2) 59 (59 ) — 59 Total loans 72 (59 ) 13 59 Other financing arrangements 55 (49 ) 6 49 Total unsecured financing receivables $ 127 $ (108 ) $ 19 $ 108 (2) The unpaid principal balance was $44 million and the average recorded loan balance was $58 million at December 31, 2017 . Fair Value —We estimated the fair value of financing receivables, which are classified as Level Three in the fair value hierarchy, to be $19 million at March 31, 2018 and $20 million at December 31, 2017 .

Acquisitions and Dispositions

Acquisitions and Dispositions	3 Months Ended
	Mar. 31, 2018
Business Combinations [Abstract]
Acquisitions and Dispositions	ACQUISITIONS AND DISPOSITIONS Acquisitions Miraval —During the three months ended March 31, 2017 , we acquired Miraval Group ("Miraval") from an unrelated third party. The transaction included the Miraval Life in Balance Spa brand, Miraval Arizona Resort & Spa in Tucson, Arizona, Travaasa Resort in Austin, Texas, and the option to acquire Cranwell Spa & Golf Resort ("Cranwell") in Lenox, Massachusetts. We subsequently exercised our option and acquired approximately 95% of Cranwell during the three months ended March 31, 2017 . Total cash consideration for Miraval was $237 million , inclusive of working capital adjustments of $2 million finalized post-acquisition. The following table summarizes the fair value of the identifiable net assets acquired in the acquisition of Miraval, which is recorded within corporate and other: Current assets, net of cash acquired $ 1 Property and equipment 172 Indefinite-lived intangibles (1) 37 Management agreement intangibles (2) 14 Goodwill (3) 21 Other definite-lived intangibles (4) 7 Total assets $ 252 Current liabilities $ 13 Deferred tax liabilities 3 Total liabilities 16 Total net assets acquired attributable to Hyatt Hotels Corporation 236 Total net assets acquired attributable to noncontrolling interests 1 Total net assets acquired $ 237 (1) Includes an intangible attributable to the Miraval brand. (2) Amortized over a useful life of 20 years. (3) The goodwill, of which $10 million is deductible for tax purposes, is attributable to Miraval's reputation as a renowned provider of wellness and mindfulness experiences, the extension of the Hyatt brand beyond traditional hotel stays, and the establishment of deferred tax liabilities. (4) Amortized over useful lives ranging from two to seven years. In conjunction with the acquisition of Miraval, a consolidated hospitality venture for which we are the managing partner (the "Miraval Venture") issued $9 million of redeemable preferred shares to unrelated third-party investors. The preferred shares were non-voting, except as required by applicable law and certain contractual approval rights, and had liquidation preference over all other classes of securities within the Miraval Venture. The redeemable preferred shares earned a return of 12% . The shares were classified as a redeemable noncontrolling interest in preferred shares of a subsidiary, which were presented between liabilities and equity on our condensed consolidated balance sheets and carried at the redemption value. During the three months ended March 31, 2018 , the preferred shares were redeemed for $10 million . Dispositions Grand Hyatt San Francisco, Andaz Maui at Wailea Resort, and Hyatt Regency Coconut Point Resort and Spa —During the three months ended March 31, 2018 , we sold Grand Hyatt San Francisco, Andaz Maui at Wailea Resort together with adjacent land, and Hyatt Regency Coconut Point Resort and Spa to an unrelated third party as a portfolio for approximately $992 million , net of proration adjustments and closing costs, and entered into a long-term management agreement for each property upon sale. The sale resulted in a pre-tax gain of $529 million , which was recognized in gains on sales of real estate on our condensed consolidated statements of income during the three months ended March 31, 2018 . The operating results and financial position of these hotels prior to the sale remain within our owned and leased hotels segment. Although we concluded the disposal of these properties does not qualify as discontinued operations, the disposal is considered to be material. Pre-tax net income attributable to the three properties during the three months ended March 31, 2018 and March 31, 2017 was $15 million and $10 million , respectively. Like-Kind Exchange Agreements Periodically, we enter into like-kind exchange agreements upon the disposition or acquisition of certain hotels. Pursuant to the terms of these agreements, the proceeds from the sales are placed into an escrow account administered by a qualified intermediary. The proceeds are recognized as restricted cash on our condensed consolidated balance sheets and released (i) if they are utilized as part of a like-kind exchange agreement, (ii) if we do not identify a suitable replacement property within 45 days after the agreement date, or (iii) when a like-kind exchange agreement is not completed within the remaining allowable time period. In conjunction with the sale of Hyatt Regency Coconut Point Resort and Spa during the three months ended March 31, 2018 , proceeds of $221 million were held as restricted for use in a potential like-kind exchange. In conjunction with the sale of Hyatt Regency Scottsdale Resort & Spa at Gainey Ranch during the year ended December 31, 2017, proceeds of $207 million were initially held as restricted for use in a potential like-kind exchange. However, we were unable to acquire the identified replacement property within the specified 180 day period and the proceeds were released in April 2018.

Intangibles, Net

Intangibles, Net	3 Months Ended
	Mar. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Intangibles, Net	INTANGIBLES, NET March 31, 2018 Weighted- average useful lives in years December 31, 2017 Management and franchise agreement intangibles $ 179 23 $ 178 Lease related intangibles 131 110 127 Brand and other indefinite-lived intangibles 53 — 53 Advanced bookings intangibles 9 6 9 Other definite-lived intangibles 9 11 9 381 376 Accumulated amortization (76 ) (71 ) Intangibles, net $ 305 $ 305 Three Months Ended March 31, 2018 2017 Amortization expense $ 3 $ 3

Other Assets

Other Assets	3 Months Ended
	Mar. 31, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Other Assets	OTHER ASSETS March 31, 2018 December 31, 2017 Marketable securities held to fund rabbi trusts (Note 4) $ 409 $ 402 Management and franchise agreement assets constituting payments to customers (1) 390 378 Loyalty program marketable securities (Note 4) 297 298 Common shares of Playa N.V. (Note 4) 124 131 Long-term investments 129 109 Other 70 66 Total other assets $ 1,419 $ 1,384 (1) Assets include cash consideration as well as other forms of consideration provided, such as debt repayment or performance guarantees.

Debt

Debt	3 Months Ended
	Mar. 31, 2018
Debt Disclosure [Abstract]
Debt	DEBT Long-term debt, net of current maturities was $1,439 million and $ 1,440 million at March 31, 2018 and December 31, 2017 , respectively. Revolving Credit Facility —During the three months ended March 31, 2018 , we refinanced our $1.5 billion senior unsecured revolving credit facility with a syndicate of lenders, extending the maturity of the facility to January 2023. During the three months ended March 31, 2018 , we had borrowings of $20 million and repayments of $20 million on our revolving credit facility, resulting in no outstanding balance and an available line of credit of $1.5 billion at March 31, 2018 . The weighted-average interest rate on these borrowings was 4.85% at March 31, 2018 . At December 31, 2017 , we had no outstanding balance. Fair Value —We estimated the fair value of debt, excluding capital leases, which consists of $196 million of 6.875% senior notes due 2019 (the "2019 Notes"), $250 million of 5.375% senior notes due 2021 (the "2021 Notes"), $350 million of 3.375% senior notes due 2023 (the "2023 Notes"), and $400 million of 4.850% senior notes due 2026 (the "2026 Notes"), collectively referred to as the "Senior Notes," bonds, and other long-term debt. Our Senior Notes and bonds are classified as Level Two due to the use and weighting of multiple market inputs in the final price of the security. We estimated the fair value of other debt instruments using a discounted cash flow analysis based on current market inputs for similar types of arrangements. Based upon the lack of available market data, we have classified our revolving credit facility and other debt instruments as Level Three. The primary sensitivity in these calculations is based on the selection of appropriate discount rates. Fluctuations in these assumptions will result in different estimates of fair value. March 31, 2018 Carrying value Fair value Quoted prices in active markets for identical assets (level one) Significant other observable inputs (level two) Significant unobservable inputs (level three) Debt (1) $ 1,451 $ 1,510 $ — $ 1,426 $ 84 (1) Excludes capital lease obligations of $13 million and unamortized discounts and deferred financing fees of $14 million . December 31, 2017 Carrying value Fair value Quoted prices in active markets for identical assets (level one) Significant other observable inputs (level two) Significant unobservable inputs (level three) Debt (2) $ 1,452 $ 1,546 $ — $ 1,459 $ 87 (2) Excludes capital lease obligations of $13 million and unamortized discounts and deferred financing fees of $14 million .

Other Long-Term Liabilities

Other Long-Term Liabilities	3 Months Ended
	Mar. 31, 2018
Other Liabilities [Abstract]
Other Long-Term Liabilities	OTHER LONG-TERM LIABILITIES March 31, 2018 December 31, 2017 Deferred compensation plans held to fund rabbi trusts (Note 4) $ 409 $ 402 Guarantee liabilities (Note 12) 99 104 Self-insurance liabilities (Note 12) 73 69 Deferred income taxes 64 62 Other 227 226 Total other long-term liabilities $ 872 $ 863

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2018
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES The effective income tax rates for the three months ended March 31, 2018 and 2017 were 26.7% and 37.9% , respectively. Our effective tax rate decreased for the three months ended March 31, 2018, compared to the three months ended March 31, 2017, primarily due to the Tax Cuts and Jobs Act ("Tax Act") enacted on December 22, 2017, which reduced the U.S. corporate income tax rate from 35% to 21% effective January 1, 2018. This benefit is partially offset by the impact of certain U.S. disallowed expenses resulting from the Tax Act. Our accounting for the Tax Act is incomplete because we are continuing to review information to more precisely determine the amount of foreign earnings and profits subject to U.S. tax at December 31, 2017 as well as the amount of non-U.S. income taxes paid on such earnings. Additionally, we are continuing to evaluate the impact of the Tax Act on our ability to utilize foreign tax credits in the future. As a result, we have not made any measurement period adjustments during the three months ended March 31, 2018 to our provisional estimates recognized at December 31, 2017 related to our net deferred tax revaluation, deemed repatriation tax, valuation allowance on certain foreign tax credits, or our global intangible low-tax income policy election. We expect to complete our accounting within the prescribed measurement period. As a result of the adoption of ASU 2014-09, our deferred tax asset related to deferred gains on sales of real estate was no longer required. The reversal of this deferred tax asset was recognized through opening equity and resulted in a $52 million reduction in deferred tax expense on our full-year 2017 adjusted financial statements originally recognized as a result of the Tax Act. Unrecognized tax benefits were $94 million at March 31, 2018 and December 31, 2017, of which $34 million and $33 million , respectively, would impact the effective tax rate, if recognized. During the first quarter of 2017, the Internal Revenue Service ("IRS") issued a "Notice of Deficiency" for our 2009 through 2011 tax years. We disagree with the IRS' assessment as it relates to the inclusion of loyalty program contributions as taxable income to the Company. In the second quarter of 2017, we filed a petition with the U.S. Tax Court for redetermination of the tax liability asserted by the IRS related to the loyalty program. If the IRS' position is upheld, it would result in an income tax liability of $127 million (including $31 million of estimated interest, net of federal benefit) for these tax years that would be partially offset by a deferred tax asset. Future tax benefits will be recognized at the reduced U.S. corporate income tax rate, therefore, $63 million of the liability and related interest would have an impact on the effective tax rate, if recognized. We believe we have an adequate liability recognized in connection with this matter.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	COMMITMENTS AND CONTINGENCIES In the ordinary course of business, we enter into various commitments, guarantees, surety bonds, and letter of credit agreements, which are discussed below: Commitments —At March 31, 2018 , we are committed, under certain conditions, to lend or invest up to $445 million , net of any related letters of credit, in various business ventures. Performance Guarantees —Certain of our contractual agreements with third-party owners require us to guarantee payments to the owners if specified levels of operating profit are not achieved by their hotels. Our most significant performance guarantee relates to four managed hotels in France that we began managing in the second quarter of 2013 ("the four managed hotels in France"), which has a term of seven years , with approximately two and one-quarter years remaining. This guarantee has a maximum cap, but does not have an annual cap. The remaining maximum exposure related to our performance guarantees at March 31, 2018 was $329 million , of which €224 million ( $276 million using exchange rates at March 31, 2018 ) related to the four managed hotels in France. We had total net performance guarantee liabilities of $72 million and $71 million at March 31, 2018 and December 31, 2017 , respectively, which included $41 million and $45 million recognized in other long-term liabilities, $32 million and $26 million in accrued expenses and other current liabilities, and $1 million and $0 in receivables, net on our condensed consolidated balance sheets, respectively. The four managed hotels in France Other performance guarantees All performance guarantees 2018 2017 2018 2017 2018 2017 Beginning balance, January 1 $ 58 $ 66 $ 13 $ 13 $ 71 $ 79 Amortization of initial guarantee obligation liability into income (4 ) (3 ) (1 ) (1 ) (5 ) (4 ) Performance guarantee expense, net 27 26 1 — 28 26 Net payments during the period (23 ) (22 ) (1 ) (4 ) (24 ) (26 ) Foreign currency exchange, net 2 2 — — 2 2 Ending balance, March 31 $ 60 $ 69 $ 12 $ 8 $ 72 $ 77 Additionally, we enter into certain management contracts where we have the right, but not an obligation, to make payments to certain hotel owners if their hotels do not achieve specified levels of operating profit. If we choose not to fund the shortfall, the hotel owner has the option to terminate the management contract. At March 31, 2018 and December 31, 2017 , there were no amounts recognized on our condensed consolidated balance sheets related to these performance test clauses. Debt Repayment and Other Guarantees —We enter into various debt repayment and other guarantees in order to assist hotel owners in obtaining third-party financing or to obtain more favorable borrowing terms. Included within debt repayment and other guarantees are the following: Property description Maximum potential future payments Maximum exposure net of recoverability from third parties Other long-term liabilities recorded at March 31, 2018 Other long-term liabilities recorded at December 31, 2017 Year of guarantee expiration Hotel property in Washington State (1), (3), (4), (5) $ 215 $ — $ 24 $ 26 2020 Hotel properties in India (2), (3) 184 184 15 17 2020 Hotel property in Massachusetts (6) 107 107 1 1 2020 Hotel and residential properties in Brazil (1), (4) 98 40 4 4 various, through 2021 Hotel properties in California (1) 31 13 5 6 various, through 2021 Hotel property in Minnesota 25 25 2 2 2021 Hotel property in Arizona (1), (4) 25 — 1 1 2019 Other (1) 30 19 6 2 various, through 2022 Total $ 715 $ 388 $ 58 $ 59 (1) We have agreements with our unconsolidated hospitality venture partner, the respective hotel owners, or other third parties to recover certain amounts funded under the debt repayment guarantee; the recoverability mechanism may be in the form of cash, financing receivable, or HTM debt security. (2) Debt repayment guarantee is denominated in Indian rupees and translated using exchange rates at March 31, 2018 . We have the contractual right to recover amounts funded from the unconsolidated hospitality venture, which is a related party. We expect our maximum exposure to be $92 million , taking into account our partner’s 50% ownership interest in the unconsolidated hospitality venture. (3) Under certain events or conditions, we have the right to force the sale of the property(ies) in order to recover amounts funded. (4) If certain funding thresholds are met or if certain events occur, we have the ability to assume control of the property . This right only exists for the residential property in Brazil. (5) We are subject to a completion guarantee whereby the parties agree to substantially complete the construction of the project by a specified date. In the event of default, we are obligated to complete construction using the funds available from the outstanding loan. Any additional funds paid by us are subject to recovery through a HTM debt security. (6) We are subject to a completion guarantee whereby the parties agree to substantially complete the construction of the project by a specified date. In the event of default, we are obligated to complete construction and any additional funds paid by us are not recoverable. At March 31, 2018 , we are not aware of, nor have we received notification that hotel owners are not current on their debt service obligations, where we have provided a debt repayment guarantee. Guarantee Liabilities Fair Value —We estimated the fair value of our guarantees to be $190 million and $177 million at March 31, 2018 and December 31, 2017 , respectively. Due to the lack of readily available market data, we have classified our guarantees as Level Three in the fair value hierarchy. Insurance —We obtain commercial insurance for potential losses for general liability, workers' compensation, automobile liability, employment practices, crime, property, cyber risk, and other miscellaneous coverages. A portion of the risk is retained on a self-insurance basis primarily through U.S. based and licensed captive insurance companies that are wholly owned subsidiaries of Hyatt and generally insure our deductibles and retentions. Reserve requirements are established based on actuarial projections of ultimate losses. Losses estimated to be paid within 12 months are $33 million and $32 million at March 31, 2018 and December 31, 2017 , respectively, and are classified within accrued expenses and other current liabilities on our condensed consolidated balance sheets, while losses expected to be payable in future periods are $73 million and $69 million at March 31, 2018 and December 31, 2017 , respectively, and are included in other long-term liabilities on our condensed consolidated balance sheets. At March 31, 2018 , standby letters of credit of $9 million were issued to provide collateral for the estimated claims, which are guaranteed by us. Collective Bargaining Agreements —At March 31, 2018 , approximately 25% of our U.S. based employees were covered by various collective bargaining agreements, generally providing for basic pay rates, working hours, other conditions of employment, and orderly settlement of labor disputes. Certain employees are covered by union sponsored multi-employer pension and health plans pursuant to agreements between us and various unions. Generally, labor relations have been maintained in a normal and satisfactory manner, and we believe our employee relations are good. Surety Bonds —Surety bonds issued on our behalf were $25 million at March 31, 2018 and primarily relate to workers’ compensation, taxes, licenses, and utilities related to our lodging operations. Letters of Credit —Letters of credit outstanding on our behalf at March 31, 2018 were $307 million , which relate to our ongoing operations, hotel properties under development in the U.S., including one unconsolidated hospitality venture, collateral for estimated insurance claims, and securitization of our performance under our debt repayment guarantee associated with the hotel properties in India, which is only called upon if we default on our guarantee. The letters of credit outstanding do not reduce the available capacity under our revolving credit facility (see Note 9 ). Capital Expenditures —As part of our ongoing business operations, significant expenditures are required to complete renovation projects that have been approved. Other —We act as general partner of various partnerships owning hotel properties that are subject to mortgage indebtedness. These mortgage agreements generally limit the lender's recourse to security interests in assets financed and/or other assets of the partnership(s) and/or the general partner(s) thereof. In conjunction with financing obtained for our unconsolidated hospitality ventures, certain managed hotels, and other properties, we may provide standard indemnifications to the lender for loss, liability, or damage occurring as a result of our actions or actions of the other unconsolidated hospitality venture partners, respective hotel owners, or other third parties. As a result of certain dispositions, we have agreed to provide customary indemnifications to third-party purchasers for certain liabilities incurred prior to sale and for breach of certain representations and warranties made during the sales process, such as representations of valid title, authority, and environmental issues that may not be limited by a contractual monetary amount. These indemnification agreements survive until the applicable statutes of limitation expire or until the agreed upon contract terms expire. We are subject, from time to time, to various claims and contingencies related to lawsuits, taxes, and environmental matters, as well as commitments under contractual obligations. Many of these claims are covered under our current insurance programs, subject to deductibles. Although the ultimate liability for these matters cannot be determined at this point, based on information currently available, we do not expect the ultimate resolution of such claims and litigation will have a material effect on our condensed consolidated financial statements. On April 18, 2018, we received a notice from the Indian tax authorities assessing additional service tax on our operations in India. We plan to appeal this decision and do not believe a loss is probable, therefore, we have not recognized a liability in connection with this matter. Our maximum exposure is not expected to exceed $17 million .

Equity

Equity	3 Months Ended
	Mar. 31, 2018
Equity [Abstract]
Equity	EQUITY Stockholders' equity Noncontrolling interests in consolidated subsidiaries Total equity Balance at January 1, 2018 $ 3,833 $ 6 $ 3,839 Net income attributable to Hyatt Hotels Corporation 411 — 411 Other comprehensive income 23 — 23 Repurchase of common stock (75 ) — (75 ) Dividends (18 ) — (18 ) Employee stock plan issuance 1 — 1 Share-based payment activity 13 — 13 Balance at March 31, 2018 $ 4,188 $ 6 $ 4,194 Stockholders' Noncontrolling interests Total equity Balance at January 1, 2017 (a) $ 4,075 $ 5 $ 4,080 Net income attributable to Hyatt Hotels Corporation 55 — 55 Other comprehensive income 75 — 75 Contributions from noncontrolling interests — 1 1 Repurchase of common stock (348 ) — (348 ) Employee stock plan issuance 1 — 1 Share-based payment activity 13 — 13 Balance at March 31, 2017 $ 3,871 $ 6 $ 3,877 (a) Balances have been adjusted for the adoption of ASU 2014-09 with an opening adjustment to retained earnings of $172 million. Accumulated Other Comprehensive Loss Balance at Current period other comprehensive income (loss) before reclassification Amount reclassified from accumulated other comprehensive loss Balance at March 31, 2018 Foreign currency translation adjustments $ (243 ) $ 23 $ — $ (220 ) Unrecognized pension cost (7 ) — — (7 ) Unrealized losses on derivative instruments (3 ) — — (3 ) Accumulated other comprehensive income (loss) $ (253 ) $ 23 $ — $ (230 ) Balance at Current period other comprehensive income (loss) before reclassification Amount reclassified from accumulated other comprehensive loss Balance at Foreign currency translation adjustments $ (299 ) $ 41 $ — $ (258 ) Unrealized gains on AFS securities 33 34 — 67 Unrecognized pension cost (7 ) — — (7 ) Unrealized losses on derivative instruments (4 ) — — (4 ) Accumulated other comprehensive income (loss) $ (277 ) $ 75 $ — $ (202 ) Share Repurchase — During 2017 and 2016, our board of directors authorized the repurchase of up to $1,250 million and $500 million , respectively, of our common stock. These repurchases may be made from time to time in the open market, in privately negotiated transactions, or otherwise, including pursuant to a Rule 10b5-1 plan, at prices we deem appropriate and subject to market conditions, applicable law, and other factors deemed relevant in our sole discretion. The common stock repurchase program applies to our Class A common stock and our Class B common stock. The common stock repurchase program does not obligate us to repurchase any dollar amount or number of shares of common stock and the program may be suspended or discontinued at any time. During the three months ended March 31, 2018 , we repurchased 1,209,987 shares of common stock, including 244,260 shares representing the settlement of an accelerated share repurchase program entered into during the fourth quarter of 2017 ("November 2017 ASR"). The shares of common stock were repurchased at a weighted-average price of $76.89 per share and an aggregate purchase price of $95 million , excluding related insignificant expenses. The aggregate purchase price includes $20 million of shares delivered in the settlement of the November 2017 ASR in 2018, for which payment was made during 2017. Total shares repurchased during the three months ended March 31, 2018 represented approximately 1% of our total shares of common stock outstanding at December 31, 2017 . In March 2017, we entered into an accelerated share repurchase program ("March 2017 ASR"). Under the March 2017 ASR, we paid $300 million and received an initial delivery of 4,596,822 shares, which were repurchased at a price of $52.21 per share during the three months ended March 31, 2017. This initial delivery of shares represented the minimum number of shares that we may receive under the agreement and was accounted for as a reduction to stockholders' equity on the condensed consolidated balance sheets. The remaining shares that had yet to be delivered at March 31, 2017, totaling $60 million , were accounted for as an equity-classified forward contract. The initial delivery of shares resulted in a reduction in the weighted-average common shares calculation for basic and diluted earnings per share. See Note 17. The March 2017 ASR was settled in the third quarter of 2017 for 796,847 shares. During the three months ended March 31, 2017 , we repurchased 5,480,636 shares of common stock, including shares repurchased pursuant to the March 2017 ASR. The shares of common stock were repurchased at a weighted-average price of $52.48 per share for an aggregate purchase price of $288 million , excluding related insignificant expenses. The shares repurchased during the three months ended March 31, 2017 represented approximately 4% of our total shares of common stock outstanding at December 31, 2016 . The shares of Class A common stock repurchased on the open market were retired and returned to the status of authorized and unissued shares. At March 31, 2018 , we had $788 million remaining under the share repurchase authorization. Dividend — On February 14, 2018, our board of directors declared a cash dividend of $0.15 per share for the first quarter of 2018, which was paid on March 29, 2018 to Class A and Class B shareholders of record on March 22, 2018.

Stock-Based Compensation

Stock-Based Compensation	3 Months Ended
	Mar. 31, 2018
Share-based Compensation [Abstract]
Stock-Based Compensation	STOCK-BASED COMPENSATION As part of our Long- Term Incentive Plan, we award Stock Appreciation Rights ("SARs"), Restricted Stock Units ("RSUs"), and Performance Share Units ("PSUs") to certain employees. Compensation expense and unearned compensation presented below exclude amounts related to employees of our managed hotels and other employees whose payroll is reimbursed, as this expense has been and will continue to be reimbursed by our third-party hotel owners and is recognized within revenues for the reimbursement of costs incurred on behalf of managed and franchised properties and costs incurred on behalf of managed and franchised properties on our condensed consolidated statements of income. Stock-based compensation expense included in selling, general, and administrative expense on our condensed consolidated statements of income related to these awards was as follows: Three Months Ended March 31, 2018 2017 SARs $ 8 $ 8 RSUs 9 8 PSUs 1 — Total $ 18 $ 16 SARs —During the three months ended March 31, 2018 , we granted 465,842 SARs to employees with a weighted-average grant date fair value of $21.13 . During the three months ended March 31, 2017 , we granted 605,601 SARs to employees with a weighted-average grant date fair value of $16.35 . RSUs — During the three months ended March 31, 2018 , we granted 258,085 RSUs to employees with a weighted-average grant date fair value of $80.00 . During the three months ended March 31, 2017 , we granted 416,215 RSUs to employees with a weighted-average grant date fair value of $52.65 . PSUs —During the three months ended March 31, 2018 , we granted 89,441 PSUs to our executive officers, with a weighted-average grant date fair value of $82.10 . The performance period applicable to such PSUs is a three year period beginning January 1, 2018 and ending December 31, 2020. During the three months ended March 31, 2017 , we granted 102,115 PSUs to our executive officers, with a weighted-average grant date fair value of $52.65 . Our total unearned compensation for our stock- based compensation programs at March 31, 2018 was $5 million for SARs, $21 million for RSUs, and $10 million for PSUs, which will primarily be recognized in stock-based compensation expense over a weighted-average period of three years with respect to SARs and RSUs, and two years with respect to PSUs.

Related-Party Transactions

Related-Party Transactions	3 Months Ended
	Mar. 31, 2018
Related Party Transactions [Abstract]
Related-Party Transactions	RELATED-PARTY TRANSACTIONS In addition to those included elsewhere in the Notes to our condensed consolidated financial statements, related- party transactions entered into by us are summarized as follows: Legal Services —A partner in a law firm that provided services to us throughout the three months ended March 31, 2018 and March 31, 2017 , is the brother-in-law of our Executive Chairman. We incurred $1 million and insignificant legal fees with this firm during the three months ended March 31, 2018 and March 31, 2017 , respectively. At March 31, 2018 and December 31, 2017 , we had $1 million and insignificant amounts due to the law firm, respectively. Equity Method Investments —We have equity method investments in entities that own properties for which we receive management or franchise fees. We recognized fees of $4 million and $6 million for the three months ended March 31, 2018 and March 31, 2017 , respectively. At March 31, 2018 and December 31, 2017 , we had receivables due from these properties of $11 million , respectively. In addition, in some cases we provide loans (see Note 5 ) or guarantees (see Note 12 ) to these entities. During each of the three months ended March 31, 2018 and March 31, 2017 , we recognized income related to these guarantees of $1 million . Our ownership interest in these unconsolidated hospitality ventures varies from 24% to 72% . See Note 4 for further details regarding these investments. Class B Share Conversion —During the three months ended March 31, 2018 and March 31, 2017 , 257,194 shares and 539,370 shares, respectively, of Class B common stock were converted on a share-for-share basis into shares of our Class A common stock, $0.01 par value per share. A portion of the shares of Class B common stock that were converted into shares of Class A common stock were retired during the three months ended March 31, 2018 and the remaining will be retired subsequent to March 31, 2018, thereby reducing the shares of Class B common stock authorized and outstanding.

Segment Information

Segment Information	3 Months Ended
	Mar. 31, 2018
Segment Reporting [Abstract]
Segment Information	SEGMENT INFORMATION Our reportable segments are components of the business which are managed discretely and for which discrete financial information is reviewed regularly by the chief operating decision maker ("CODM") to assess performance and make decisions regarding the allocation of resources. Our CODM is our President and Chief Executive Officer. We define our reportable segments as follows: • Owned and leased hotels —This segment derives its earnings from owned and leased hotel properties located predominantly in the United States but also in certain international locations and for purposes of segment Adjusted EBITDA, includes our pro rata share of the Adjusted EBITDA of our unconsolidated hospitality ventures, based on our ownership percentage of each venture. Adjusted EBITDA includes intercompany expenses related to management fees paid to the Company's management and franchising segments, which are eliminated in consolidation. Intersegment revenues relate to promotional award redemptions earned by our owned and leased hotels related to our co-branded credit card and revenues that are deferred under the loyalty program for stays at our owned and leased hotels and are eliminated in consolidation. • Americas management and franchising —This segment derives its earnings primarily from a combination of hotel management and licensing of our portfolio of brands to franchisees located in the United States, Latin America, Canada, and the Caribbean. This segment's revenues also include the reimbursement of costs incurred on behalf of managed and franchised properties. These costs relate primarily to payroll costs at managed properties where the Company is the employer, as well as costs associated with reservations, sales, marketing, technology, and the loyalty program operated on behalf of owners of managed and franchised properties. The intersegment revenues relate to management fees earned from the Company's owned hotels and are eliminated in consolidation. • ASPAC management and franchising —This segment derives its earnings primarily from a combination of hotel management and licensing of our portfolio of brands to franchisees located in Southeast Asia, Greater China, Australia, South Korea, Japan, and Micronesia. This segment's revenues also include the reimbursement of costs incurred on behalf of managed and franchised properties. These costs relate primarily to reservations, sales, marketing, technology, and the loyalty program operated on behalf of owners of managed and franchised properties. The intersegment revenues relate to management fees earned from the Company’s owned hotels and are eliminated in consolidation. • EAME/SW Asia management and franchising —This segment derives its earnings primarily from a combination of hotel management and licensing of our portfolio of brands to franchisees located in Europe, Africa, the Middle East, India, Central Asia, and Nepal. This segment's revenues also include the reimbursement of costs incurred on behalf of managed and franchised properties. These costs relate primarily to reservations, sales, marketing, technology, and the loyalty program operated on behalf of owners of managed and franchised properties. The intersegment revenues relate to management fees earned from the Company’s owned hotels and are eliminated in consolidation. Our CODM evaluates performance based on owned and leased hotels revenues, management, franchise, and other fees revenues, and Adjusted EBITDA. Adjusted EBITDA, as we define it, is a non-GAAP measure. We define Adjusted EBITDA as net income attributable to Hyatt Hotels Corporation plus our pro rata share of unconsolidated hospitality ventures Adjusted EBITDA based on our ownership percentage of each venture, adjusted to exclude interest expense; provision for income taxes; depreciation and amortization; Contra Revenue; revenues for the reimbursement of costs incurred on behalf of managed and franchised properties; costs incurred on behalf of managed and franchised properties; equity earnings (losses) from unconsolidated hospitality ventures; stock-based compensation expense; gains (losses) on sales of real estate; asset impairments; and other income (loss), net. Effective January 1, 2018, we made two modifications to our definition of Adjusted EBITDA with the implementation of ASU 2014-09. Our definition has been updated to exclude Contra Revenue which was previously recognized as amortization expense. As this is strictly a matter of financial presentation, we have excluded Contra Revenue in order to be consistent with our prior treatment and to reflect the way in which we manage our business. We have also excluded revenues for the reimbursement of costs incurred on behalf of managed and franchised properties and costs incurred on behalf of managed and franchised properties. These revenues and costs previously netted to zero within Adjusted EBITDA. Under ASU 2014-09, the recognition of certain revenue differs from the recognition of related costs, creating timing differences that would otherwise impact Adjusted EBITDA. We have not changed our management of these revenues or expenses, nor do we consider these timing differences to be reflective of our core operations. These changes reflect how our CODM evaluates each segment’s performance and also facilitate comparison with our competitors. We have applied this change to 2017 historical results to allow for comparability between the periods presented. The table below shows summarized consolidated financial information by segment. Included within corporate and other are the results of Miraval, exhale, Hyatt Residence Club license fees, results related to our co- branded credit card, and unallocated corporate expenses. Three Months Ended March 31, 2018 2017 Owned and leased hotels Owned and leased hotels revenues $ 507 $ 562 Other revenues — 13 Intersegment revenues (a) 9 9 Adjusted EBITDA 113 142 Depreciation and amortization 68 74 Americas management and franchising Management, franchise, and other fees revenues 98 90 Contra revenue (3 ) (3 ) Revenues for the reimbursement of costs incurred on behalf of managed and franchised properties 420 401 Intersegment revenues (a) 18 19 Adjusted EBITDA 87 76 Depreciation and amortization 4 2 ASPAC management and franchising Management, franchise, and other fees revenues 30 25 Contra revenue (1 ) — Revenues for the reimbursement of costs incurred on behalf of managed and franchised properties 20 17 Intersegment revenues (a) — — Adjusted EBITDA 18 15 Depreciation and amortization — — EAME/SW Asia management and franchising Management, franchise, and other fees revenues 18 16 Contra revenue (1 ) (1 ) Revenues for the reimbursement of costs incurred on behalf of managed and franchised properties 16 12 Intersegment revenues (a) 2 2 Adjusted EBITDA 10 8 Depreciation and amortization — — Corporate and other Revenues 32 22 Intersegment revenues (a) (2 ) (2 ) Adjusted EBITDA (29 ) (28 ) Depreciation and amortization 11 11 Eliminations Revenues (a) (27 ) (28 ) Adjusted EBITDA 3 5 TOTAL Revenues $ 1,109 $ 1,126 Adjusted EBITDA 202 218 Depreciation and amortization 83 87 (a) Intersegment revenues are included in management, franchise, and other fees revenues, owned and leased hotels revenues, and other revenues and eliminated in Eliminations. The table below provides a reconciliation of our net income attributable to Hyatt Hotels Corporation to EBITDA and a reconciliation of EBITDA to our consolidated Adjusted EBITDA: Three Months Ended March 31, 2018 2017 Net income attributable to Hyatt Hotels Corporation $ 411 $ 55 Interest expense 19 21 Provision for income taxes 150 34 Depreciation and amortization 83 87 EBITDA 663 197 Contra revenue 5 4 Revenues for the reimbursement of costs incurred on behalf of managed and franchised properties (456 ) (430 ) Costs incurred on behalf of managed and franchised properties 460 445 Equity losses from unconsolidated hospitality ventures 13 3 Stock-based compensation expense (Note 14) 18 16 Gains on sales of real estate (Note 6) (529 ) — Other (income) loss, net (Note 18) 18 (43 ) Pro rata share of unconsolidated hospitality ventures Adjusted EBITDA 10 26 Adjusted EBITDA $ 202 $ 218

Earnings Per Share

Earnings Per Share	3 Months Ended
	Mar. 31, 2018
Earnings Per Share [Abstract]
Earnings Per Share	EARNINGS PER SHARE The calculation of basic and diluted earnings per share, including a reconciliation of the numerator and denominator, are as follows: Three Months Ended March 31, 2018 2017 Numerator: Net income $ 411 $ 55 Net income and accretion attributable to noncontrolling interests — — Net income attributable to Hyatt Hotels Corporation $ 411 $ 55 Denominator: Basic weighted average shares outstanding 118,652,054 129,746,644 Share-based compensation 2,126,296 1,250,891 Diluted weighted average shares outstanding 120,778,350 130,997,535 Basic Earnings Per Share: Net income $ 3.47 $ 0.43 Net income and accretion attributable to noncontrolling interests — — Net income attributable to Hyatt Hotels Corporation $ 3.47 $ 0.43 Diluted Earnings Per Share: Net income $ 3.40 $ 0.42 Net income and accretion attributable to noncontrolling interests — — Net income attributable to Hyatt Hotels Corporation $ 3.40 $ 0.42 The computations of diluted net income per share for the three months ended March 31, 2018 and March 31, 2017 do not include the following shares of Class A common stock assumed to be issued as stock- settled SARs, RSUs, and an equity-classified forward contract because they are anti- dilutive. Three Months Ended March 31, 2018 2017 SARs — 39,200 RSUs 200 — Equity-classified forward contract under the March 2017 ASR — 26,800

Other Income (Loss), Net

Other Income (Loss), Net	3 Months Ended
	Mar. 31, 2018
Other Income and Expenses [Abstract]
Other Income (Loss), Net	OTHER INCOME (LOSS), NET Three Months Ended March 31, 2018 2017 Interest income (Note 4) $ 5 $ 97 Depreciation recovery 5 6 Performance guarantee liability amortization (Note 12) 5 4 Debt repayment guarantee liability amortization (Note 12) 3 3 Pre-condemnation income 2 — Realized losses (Note 4) (1 ) (41 ) Unrealized (losses) gains (Note 4) (12 ) 1 Performance guarantee expense, net (Note 12) (28 ) (26 ) Other, net 3 (1 ) Other income (loss), net $ (18 ) $ 43

Recently Issued Accounting Pr27

Recently Issued Accounting Pronouncements (Policies)	3 Months Ended
	Mar. 31, 2018
Accounting Policies [Abstract]
Basis of Accounting	The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") for interim financial information, the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all information or footnotes required by GAAP for complete annual financial statements.
Principles of Consolidation	We have eliminated all intercompany accounts and transactions in our condensed consolidated financial statements. We consolidate entities under our control, including entities where we are deemed to be the primary beneficiary.
Recently Issued Accounting Pronouncements	Summary of Significant Accounting Policies Our significant accounting policies are detailed in Part IV, Item 15, "Exhibits and Financial Statement Schedule—Note 2 to our Consolidated Financial Statements" within the 2017 Form 10-K. Upon adoption of Accounting Standards Update No. 2014-09 ("ASU 2014-09"), Revenue from Contracts with Customers (Topic 606) and Accounting Standards Update No. 2016-01 ("ASU 2016-01"), Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities , our accounting policies have been updated as follows: Revenue Recognition —Our revenues are primarily derived from the following products and services and are generally recognized when control of the product or service has transferred to the customer: • Owned and leased hotels revenues: • Owned and leased hotels revenues are derived from room rentals and services provided at our owned and leased properties and are recognized over time as rooms are occupied and when services are rendered. We present revenue net of sales, occupancy, and other taxes. Taxes collected on behalf of and remitted to governmental taxing authorities are excluded from the transaction price of the underlying products and services. In relation to the loyalty program, a portion of our owned and leased hotels revenues is deferred upon initial stay as points are earned by program members at an owned or leased hotel, and revenues are recognized upon redemption at an owned or leased hotel. • Management, franchise, and other fees: • Management fees primarily consist of a base fee, which is generally computed as a percentage of gross revenues, and an incentive fee, which is generally computed based on a hotel profitability measure. Management fees are recognized over time as services are performed. Additionally, we recognize royalty fees as owners derive value from access to Hyatt’s intellectual property ("IP"). Incentive fees may be subject to minimum annual profitability thresholds, and we recognize incentive fee revenues over time as services are rendered only to the extent that a significant reversal is not probable. • Franchise fees consist of an initial fee and ongoing royalty fees calculated based on a percentage of gross room revenues and, as applicable, food and beverage revenues. Royalty fees are recognized over time as franchisees derive value from the license to Hyatt's IP, including Hyatt's brand names. Initial fees are deferred and recognized over the expected customer life, which is typically the initial term of the franchise agreement. • Management, franchise, and other fees include license fees revenue associated with the licensing of the Hyatt brand name through our co-branded credit card program. License fee revenue is recognized over time as the licensee derives value from access to Hyatt’s brand names. • Net management, franchise, and other fees are reduced by the amortization of management and franchise agreement assets constituting payments to customers ("Contra Revenue"). Consideration provided to customers is recognized in other assets and amortized over the expected customer life, which is typically the initial term of the management or franchise agreement. • Other revenues: • Other revenues include revenues from the sale of promotional awards through our co-branded credit card and spa and fitness revenues from exhale. We recognize the revenue from our co-branded credit card upon the fulfillment or expiration of a card member's promotional awards. Revenue is recognized net of expenses incurred to fulfill the promotional award as we are deemed to be the agent in the transaction. Spa and fitness revenue is recognized at the point in time the products or services are provided to the customer. • Revenues for the reimbursement of costs incurred on behalf of managed and franchised properties: • Revenues for the reimbursement of costs incurred on behalf of managed and franchised properties represent the reimbursement of costs incurred on behalf of the owners of properties. These costs relate primarily to payroll costs at managed properties where we are the employer, as well as costs associated with reservations, sales, marketing, technology (collectively, "systemwide services"), and the loyalty program operated on behalf of owners of managed and franchised properties. Hyatt is reimbursed for costs incurred based on the terms of the contracts, and revenue is recognized as the underlying performance obligations are satisfied. Gains on Sales of Real Estate —Gains on sales of real estate are generally recognized when control of the property transfers to the buyer and recognized through gains on sales of real estate in our condensed consolidated statements of income. Equity Method Investments —We have investments in unconsolidated hospitality ventures recorded under the equity method. These investments are an integral part of our business and are strategically and operationally important to our overall results. When we receive a distribution from an investment, we determine whether it is a return on our investment or a return of our investment based on the underlying nature of the distribution. We assess investments in unconsolidated hospitality ventures for impairment quarterly. Debt and Equity Securities —Debt and equity securities consist of various investments, excluding equity securities classified as equity method investments: • Equity securities consist of interest bearing money market funds, mutual funds, common shares, and preferred shares. Equity securities with a readily determinable fair value are recorded at fair value on our condensed consolidated balance sheets based on listed market prices or dealer quotations where available. Equity investments without a readily determinable fair value are recognized at cost less any impairment, plus or minus changes resulting from observable price changes in orderly transactions for the identical or similar investment of the same issuer. • Our investments in debt securities consist of various types including preferred shares, time deposits, and fixed income securities, including U.S. government obligations, obligations of other government agencies, corporate debt, mortgage-backed and asset-backed securities, and municipal and provincial notes and bonds. Debt securities are classified as either trading, available for sale ("AFS"), or held to maturity ("HTM"). • Trading securities—recorded at fair value based on listed market prices or dealer price quotations where available. Net gains and losses on trading securities are reflected in net gains and interest income from marketable securities held to fund rabbi trusts or other income (loss), net, depending on the nature of the investment, on our condensed consolidated statements of income. • AFS securities—recorded at fair value based on listed market prices or dealer price quotations, where available. Unrealized gains and losses on AFS debt securities are recognized in accumulated other comprehensive loss on our condensed consolidated balance sheets. Realized gains and losses on debt securities are recognized in other income (loss), net on our condensed consolidated statements of income. • HTM securities—debt security investments which we have the ability to hold until maturity and are recorded at amortized cost. AFS and HTM debt securities are assessed for impairment quarterly. Loyalty Program —We administer the loyalty program for the benefit of the Hyatt portfolio of properties owned, operated, managed, franchised, or licensed by us during the period of their participation in the loyalty program. The loyalty program is primarily funded through contributions from eligible revenues from loyalty program members, and the funds are used for the redemption of member awards associated with the loyalty program and payment of operating expenses. The costs of operating the loyalty program, including the estimated cost of award redemption, are charged to the participating properties based on members' qualified expenditures. The revenues received from the properties are deferred, and revenue is recognized as loyalty points are redeemed, net of redemption expense, through revenues for the reimbursement of costs incurred on behalf of managed and franchised properties. Operating costs are expensed as incurred through costs incurred on behalf of managed and franchised properties. We actuarially determine the amount to recognize as revenue when points are redeemed, based on statistical formulas that estimate the timing of future point redemptions based on historical experience, including an estimate of breakage for points that will not be redeemed, and an estimate of the points that will eventually be redeemed. Any revenue in excess of the anticipated future redemptions is used to fund the operational expenses of the program. The loyalty program is financed by payments from the properties and returns on marketable securities. The program invests amounts received from the properties in marketable securities which are included in other current and noncurrent assets (see Note 4). The current and noncurrent liabilities of the loyalty program are classified as contract liabilities (see Note 3). Adopted Accounting Standards Revenue from Contracts with Customers —In May 2014, the Financial Accounting Standards Board ("FASB") released ASU 2014-09. ASU 2014-09 supersedes the requirements in Topic 605, Revenue Recognition , and provides a single, comprehensive revenue recognition model for contracts with customers. Subsequently, the FASB issued several related ASUs which further clarify the application of the standard including ASU 2015-14, which delayed the effective date by one year making it effective for interim and fiscal years beginning after December 14, 2017. We adopted ASU 2014-09, and all related ASUs, utilizing the full retrospective transition method on January 1, 2018, which required us to adjust each prior reporting period presented. The adoption of ASU 2014-09 impacts the timing of the recognition of gains on sales of real estate subject to a long-term management agreement, and the associated impact to deferred tax assets (see Note 11), the classification of Contra Revenue, and the timing of revenue recognition related to incentive fees. However, we do not expect the new standard to have a significant impact on incentive fee revenue on a full-year basis. The adoption of ASU 2014-09 also impacts the timing of revenue recognition related to the loyalty program and as a result of the change, we recorded an increase of $116 million to the contract liability related to the loyalty program as of January 1, 2018. Upon adoption of ASU 2014-09, we recognized a cumulative effect of a change in accounting principle through retained earnings, including a reclassification of $523 million related to deferred gains at January 1, 2018. We also reclassified certain management and franchise agreement assets from intangibles, net to other assets and certain current and long-term liabilities to current and long-term contract liabilities. Financial Instruments - Recognition, Measurement, Presentation, and Disclosure —In January 2016, the FASB released ASU 2016-01 . ASU 2016-01 revised the accounting for equity investments, excluding those accounted for under the equity method, and the presentation and disclosure requirements for financial instruments. ASU 2016-01 superseded the guidance to classify equity securities with readily determinable fair values into different categories (i.e., trading versus AFS) and requires all equity securities to be measured at fair value on a recurring basis unless an equity security does not have a readily determinable fair value. Equity securities without a readily determinable fair value are remeasured at fair value only in periods in which an observable price change is available or upon identification of an impairment. All changes in fair value are recognized in net income on our condensed consolidated statements of income. On January 1, 2018, we adopted the provisions of ASU 2016-01 on a modified retrospective basis through a cumulative-effect adjustment to our opening condensed consolidated balance sheet. Upon adoption, unrealized gains of $68 million , net of tax, were reclassified from accumulated other comprehensive loss to opening retained earnings. Changes in fair value are recognized in other income (loss), net on our condensed consolidated statements of income. Accounting for Income Taxes - Intra-Entity Asset Transfers —In October 2016, the FASB released Accounting Standards Update No. 2016-16 ("ASU 2016-16"), Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory . ASU 2016-16 requires an entity to recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. We adopted ASU 2016-16 on January 1, 2018 on a modified retrospective basis, resulting in a decrease of $4 million to retained earnings. Statement of Cash Flows - Restricted Cash —In November 2016, the FASB released Accounting Standards Update No. 2016-18 ("ASU 2016-18"), Statement of Cash Flows (Topic 230): Restricted Cash (a consensus of the FASB Emerging Issues Task Force) . ASU 2016-18 requires amounts generally described as restricted cash to be included within cash and cash equivalents when reconciling the total beginning and ending amounts for the periods shown on the condensed consolidated statements of cash flows. We adopted the provisions of ASU 2016-18 on January 1, 2018 on a retrospective basis. Upon adoption of ASU 2016-18, restricted cash of $249 million , including $15 million which is recognized within other assets on our consolidated balance sheet at December 31, 2017, is included within the beginning balance of cash and cash equivalents on our condensed consolidated statement of cash flows for the three months ending March 31, 2018. The table below summarizes the effect on our condensed consolidated statements of cash flows for the three months ended March 31, 2017: Three Months Ended March 31, Increase/(decrease) 2017 Operating activities $ (6 ) Investing activities (5 ) Financing activities (1 ) Cash, cash equivalents, and restricted cash - beginning of year 91 Cash, cash equivalents, and restricted cash - end of period $ 79 Business Combinations - Definition of a Business —In January 2017, the FASB released Accounting Standards Update No. 2017-01 ("ASU 2017-01"), Business Combinations (Topic 805): Clarifying the Definition of a Business . ASU 2017-01 clarifies the definition of a business to assist entities with evaluating whether transactions should be accounted for as acquisitions or disposals of assets or businesses. Generally, our acquisitions of individual hotels were previously accounted for as business combinations, however, upon adoption of ASU 2017-01, there is an increased likelihood that certain acquisitions of individual hotels will be accounted for as asset acquisitions. We do not expect ASU 2017-01 to have a significant impact on our accounting for the disposition of assets as we generally account for disposals as sales of assets. We adopted ASU 2017-01 on January 1, 2018 on a prospective basis, and we will evaluate the impact of the standard on future transactions based on the relevant facts and circumstances. The impact of the changes made to our condensed consolidated financial statements as a result of the adoption of ASU 2014-09, ASU 2016-01, and ASU 2016-16 were as follows: Three Months Ended March 31, 2017 As Reported Effect of the adoption of As Adjusted REVENUES: Owned and leased hotels $ 572 $ (3 ) $ 569 Management, franchise, and other fees 122 (8 ) 114 Amortization of management and franchise agreement assets constituting payments to customers — (4 ) (4 ) Net management, franchise, and other fees 122 (12 ) 110 Other revenues 22 (5 ) 17 Revenues for the reimbursement of costs incurred on behalf of managed and franchised properties 471 (41 ) 430 Total revenues 1,187 (61 ) 1,126 DIRECT AND SELLING, GENERAL, AND ADMINISTRATIVE EXPENSES: Owned and leased hotels 427 (3 ) 424 Depreciation and amortization 91 (4 ) 87 Other direct costs 19 (3 ) 16 Selling, general, and administrative 99 — 99 Costs incurred on behalf of managed and franchised properties 471 (26 ) 445 Direct and selling, general, and administrative expenses 1,107 (36 ) 1,071 Net gains and interest income from marketable securities held to fund rabbi trusts 15 — 15 Equity losses from unconsolidated hospitality ventures (3 ) — (3 ) Interest expense (21 ) — (21 ) Other income (loss), net 40 3 43 INCOME BEFORE INCOME TAXES 111 (22 ) 89 PROVISION FOR INCOME TAXES (41 ) 7 (34 ) NET INCOME 70 (15 ) 55 NET INCOME AND ACCRETION ATTRIBUTABLE TO NONCONTROLLING INTERESTS — — — NET INCOME ATTRIBUTABLE TO HYATT HOTELS CORPORATION $ 70 $ (15 ) $ 55 EARNINGS PER SHARE—Basic Net income $ 0.54 $ (0.11 ) $ 0.43 Net income attributable to Hyatt Hotels Corporation $ 0.54 $ (0.11 ) $ 0.43 EARNINGS PER SHARE—Diluted Net income $ 0.54 $ (0.12 ) $ 0.42 Net income attributable to Hyatt Hotels Corporation $ 0.54 $ (0.12 ) $ 0.42 December 31, 2017 January 1, 2018 As Reported Effect of the adoption of As Adjusted Effect of the adoption of ASU 2016-01 and ASU 2016-16 As Adjusted ASSETS Investments $ 211 $ 1 $ 212 $ (27 ) $ 185 Intangibles, net 683 (378 ) 305 — 305 Deferred tax assets 242 (101 ) 141 1 142 Other assets 1,006 378 1,384 22 1,406 TOTAL ASSETS 7,672 (100 ) 7,572 (4 ) 7,568 LIABILITIES, REDEEMABLE NONCONTROLLING INTEREST, AND EQUITY Accounts payable $ 175 $ (39 ) $ 136 $ — $ 136 Accrued expenses and other current liabilities 635 (283 ) 352 — 352 Current contract liabilities — 348 348 — 348 Long-term contract liabilities — 424 424 — 424 Other long-term liabilities 1,725 (862 ) 863 — 863 Total liabilities 4,131 (412 ) 3,719 — 3,719 Retained earnings 2,742 312 3,054 64 3,118 Accumulated other comprehensive loss (185 ) — (185 ) (68 ) (253 ) Total equity 3,531 312 3,843 (4 ) 3,839 TOTAL LIABILITIES, REDEEMABLE NONCONTROLLING INTEREST, AND EQUITY 7,672 (100 ) 7,572 (4 ) 7,568 The adoption of ASU 2014-09 resulted in a reclassification of $3 million from investing into operating activities related to cash outflows representing payments to customers. There were no impacts to cash provided by or used in financing activities on our condensed consolidated statements of cash flows. Future Adoption of Accounting Standards Leases —In February 2016, the FASB released Accounting Standards Update No. 2016-02 ("ASU 2016-02"), Leases (Topic 842) . ASU 2016-02 requires lessees to record lease contracts on the balance sheet by recognizing a right-of-use asset and lease liability; the accounting for lessors remains largely unchanged. The provisions of ASU 2016-02 are to be applied using a modified retrospective approach and are effective for interim periods and fiscal years beginning after December 15, 2018, with early adoption permitted. The real estate leases for a majority of our owned and leased hotels include contingent lease payments, which will be excluded from the impact of ASU 2016-02. We are currently evaluating the impact of adopting ASU 2016-02 and expect this ASU may have a material effect to our condensed consolidated financial statements. Financial Instruments - Credit Losses —In June 2016, the FASB released Accounting Standards Update No. ("ASU 2016-13"), Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments . ASU 2016-13 replaces the existing impairment model for most financial assets from an incurred loss impairment model to a current expected credit loss model, which requires an entity to recognize an impairment allowance equal to its current estimate of all contractual cash flows the entity does not expect to collect. ASU 2016-13 also requires credit losses relating to AFS debt securities to be recognized through an allowance for credit losses. The provisions of ASU 2016-13 are to be applied using a modified retrospective approach and are effective for interim periods and fiscal years beginning after December 15, 2019, with early adoption permitted. We are currently evaluating the impact of adopting ASU 2016-13.
Revenue Recognition	Revenue Allocated to Remaining Performance Obligations Revenue allocated to remaining performance obligations represents contracted revenue that has not yet been recognized, which includes deferred revenue and amounts that will be invoiced and recognized as revenue in future periods. We did not estimate revenues expected to be recognized related to our unsatisfied performance obligations for the following: • Deferred revenue related to the loyalty program and revenue from base and incentive management fees are not included in the contracted revenue above, as the revenue is allocated to a wholly unperformed performance obligation in a series; • Revenues related to royalty fees as they are considered sales-based royalty fees; and • Revenues received for free nights granted through our co-branded credit card as the awards are required to be redeemed within 12 months. We elected to apply the practical expedient that permits the omission of prior period information about revenue allocated to future performance obligations under ASU 2014-09. Contract Balances Our payments from customers are based on the billing terms established in our contracts. Customer billings are classified as accounts receivable when our right to consideration is unconditional. If our right to consideration is conditional on future performance under the contract, the balance is classified as a contract asset. Under the terms of our management agreements, we earn incentive management fees based on a percentage of hotel profitability. The incentive fee may be contingent on the hotel achieving certain annual profitability targets. We recognize an incentive fee receivable each month to the extent it is probable that we will not reverse a significant portion of the fees in a subsequent period. However, due to the profitability hurdles in the contract, incentive fees are considered contract assets until the risk related to the achievement of the profitability metric no longer exists. Once the annual profitability hurdle has been met, the incentive fee receivable balance will be reflected within accounts receivable. Performance Obligations We provide products and services to our customers, which include third-party hotel owners, guests at owned and leased hotels and spa and fitness centers, and a third-party partner through our co-branded credit card program. The products and services offered by us are comprised of the following performance obligations: • Management and Franchise Agreements: • License to Hyatt’s IP, including the Hyatt brand names —We receive variable consideration from third-party hotel owners in exchange for providing access to our IP, including the Hyatt brand names. The license represents a license of symbolic IP and in exchange for providing the license, Hyatt receives sales-based royalty fees. Royalty fees are generally determined based on a percentage of gross revenues for managed hotels and are generally included in the hotel management fee. Royalty fees for franchised hotels are based on a percentage of gross room revenues and, as applicable, food and beverage revenues. Fees are generally payable on a monthly basis as the third-party hotel owners derive value from access to our IP. Royalty fees are recognized over time through management, franchise, and other fees as services are rendered. Under our franchise agreements, we also receive initial fees from third-party hotel owners. The initial fees do not relate to a distinct performance obligation and, therefore, are combined with the royalty fees and recognized through management, franchise, and other fees over the expected customer life, which is typically the initial term of the agreement. • Systemwide services —We provide sales, reservations, technology, and marketing services on behalf of owners of managed and franchised properties. The promise to provide systemwide services is not a distinct performance obligation because it is attendant to the license of our IP. Therefore, the promise to provide systemwide services is combined with the license of our IP to form a single performance obligation. We have two accounting models depending on the terms of the agreement: • Cost reimbursement model —Third-party hotel owners are required to reimburse us for all costs incurred to operate the systemwide programs with no added margin. The reimbursements are recognized over time within revenues for the reimbursement of costs incurred on behalf of managed and franchised properties. We have discretion over how we spend program revenues and, therefore, we are the principal with respect to the promise to provide systemwide services. Expenses incurred related to our sales, reservations, technology, and marketing programs are recognized within costs incurred on behalf of managed and franchised properties. The reimbursement of systemwide services is billed on a monthly basis based upon an annual estimate of costs to be incurred and are recognized as revenue commensurate with incurring the cost. To the extent that actual costs vary from estimated costs, a true-up billing or refund is issued to the hotels. Any amounts collected and not yet recognized as revenues are deferred and recognized as contract liabilities. Any costs incurred in excess of revenues collected are recognized as receivables. • Fund model —Third-party hotel owners are invoiced a systemwide assessment fee primarily based on a percentage of hotel revenues on a monthly basis. We recognize the revenues over time as services are provided through revenues for the reimbursement of costs incurred on behalf of managed and franchised properties. We have discretion over how we spend program revenues and, therefore, we are the principal with respect to systemwide services. Expenses related to the sales, reservations, technology, and marketing programs are recognized as incurred through costs incurred on behalf of managed and franchised properties. Over time, we manage the systemwide programs to break-even, but the timing of the revenue received from the owners may not align with the timing of the expenses to operate the programs and, therefore, the difference between the revenues and expenses may impact our net income. • Hotel management agreement services —We provide hotel management agreement services, which form a single performance obligation that qualifies as a series, under the terms of our management agreements. In exchange for providing these services, we receive variable consideration in the form of management fees, which are comprised of base and incentive fees. Incentive fees are typically subject to the achievement of certain annual profitability targets, and therefore, we apply judgment in determining the amount of incentive fees recognized each period. Incentive fees revenue is recognized to the extent it is probable that we will not reverse a significant portion of the fees in a subsequent period. We rely on internal financial forecasts and historical trends to estimate the amount of incentive fees revenue recognized and the probability that incentive fees will reverse in the future. Generally, base management fees are due and payable on a monthly basis as services are provided, and incentive fees are due and payable based on the terms of the agreement, but at a minimum, incentive fees are billed and collected annually. Revenue is recognized over time through management, franchise, and other fees. Under the terms of certain management agreements, primarily within the United States, we are the employer of hotel employees. When we are the employer, we are reimbursed for costs incurred related to the employee management services with no added margin, and the reimbursements are recognized over time as services are rendered within revenues for the reimbursement of costs incurred on behalf of managed and franchised properties. In jurisdictions in which we are the employer, we have discretion over how employee management services are provided and, therefore, we are the principal and revenues are recognized on a gross basis. • Loyalty program administration —We administer a loyalty program for the benefit of the Hyatt portfolio of properties owned, managed, franchised, or licensed by us. Under the program, members earn loyalty points that can be redeemed for future products and services. Points earned by loyalty program members represent a material right to free or discounted goods or services in the future. The loyalty program has one performance obligation that consists of marketing and managing the program and arranging for award redemptions by members. The costs of operating the loyalty program are charged to the properties through an assessment fee based on members’ qualified expenditures. The assessment fee is billed and collected monthly, and the revenue received by the program is deferred until a member redeems points. Upon redemption of points at managed and franchised properties, we recognize the previously deferred revenue through revenues for the reimbursement of costs incurred on behalf of managed and franchised properties, net of redemption expense paid to managed and franchised hotels, as we are an agent in the transaction. We are responsible for arranging for the redemption of promotional awards, but we do not directly fulfill the award night obligation, except at owned and leased hotels. Therefore, we are the agent with respect to this performance obligation for managed and franchised hotels, and we are the principal with respect to owned hotels. When loyalty points are redeemed at owned and leased hotels, we recognize revenue through owned and leased hotels revenues on our condensed consolidated statements of income. The revenue recognized each period includes an estimate of breakage for the loyalty points that will not be redeemed. Determining breakage involves significant judgment, and we engage third-party actuaries to estimate the ultimate redemption ratios used in the breakage calculations and to estimate the amount of revenue recognized upon redemption. Changes to the expected ultimate redemption assumptions are reflected in the current period. • Room rentals and other services provided at owned and leased hotels —We provide room rentals and other services to our guests, including but not limited to spa, laundry, and parking. These products and services each represent individual performance obligations and, in exchange for these services, we receive fixed amounts based on published rates or negotiated contracts. Payment is due in full at the time the services are rendered or the goods are provided. If a guest enters into a package including multiple goods or services, the fixed price is allocated to each distinct good or service based on the stand-alone selling price for each item. Revenue is recognized over time within owned and leased hotels revenues when we transfer control of the good or service to the customer. Room rental revenue is recognized on a daily basis as the guest occupies the room, and revenue related to other products and services is recognized when the product or service is provided to the guest. Hotels commonly enter into arrangements with online travel agencies, trade associations, and other entities. As part of these arrangements, Hyatt may pay the other party a commission or rebate based on the revenue generated through that channel. The determination of whether to recognize revenues gross or net of rebates and commission is made based on the terms of each contract. Due to the nature of our business, our fees are not significantly impacted by refunds or returns. Prepayments are refunded to hotel guests if the guest cancels within the specified time period, before any services are rendered. Refunds related to service are generally recognized as an adjustment to the transaction price at the time the hotel stay occurs or services are rendered. • Spa and fitness services —Exhale spa and fitness studios provide guests with spa and fitness services as well as retail products in exchange for fixed consideration. Each spa and fitness service represents an individual performance obligation. Payment is due in full and revenue is recognized at the point in time the services are rendered or the products are delivered. If a guest purchases a spa or fitness package, the fixed price is allocated to each distinct product or service based on the published stand-alone selling price for each item and revenues are recognized as the services are rendered. • Co-branded credit card —We have a co-branded credit card agreement with a third party and under the terms of the agreement, we have various performance obligations: granting a license to the Hyatt name, arranging for the fulfillment of points issued to cardholders through the loyalty program, and awarding cardholders with free room nights upon achievement of certain program milestones. The loyalty points and free room nights represent material rights that can be redeemed for free or discounted services in the future. In exchange for the products and services provided, we receive fixed and variable consideration that is allocated between the performance obligations based upon the relative stand-alone selling prices. Significant judgment is involved in determining the relative stand-alone selling prices, and therefore, we engaged a third-party valuation specialist to assist us. We utilized a relief from royalty method to determine the revenue allocated to the license, which is recognized over time. We utilized observable transaction prices and adjusted market assumptions to determine the stand-alone selling price of a loyalty point and we utilized a cost plus margin approach to determine the stand-alone selling price of the free room nights. The revenues allocated to loyalty program points and free night awards are deferred and recognized upon redemption, net of redemption expenses, as we are deemed to be the agent in the transaction. We are responsible for arranging for the redemption of promotional awards, but we do not directly fulfill the award night obligation, except at owned and leased hotels. Therefore, we are the agent for managed and franchised hotels and we are the principal with respect to owned hotels. When loyalty points and free nights are redeemed at owned and leased hotels, we recognize revenue through owned and leased hotels revenues on our condensed consolidated statements of income. We satisfy the following performance obligations over time: the license of Hyatt’s symbolic IP, hotel management agreement services, administration of the loyalty program, and the license to our brand name through our co-branded credit card agreement. Each of these performance obligations is considered a sales-based royalty or a series of distinct services, and although the activities to fulfill each of these promises may vary from day to day, the nature of each promise is the same and the customer benefits from the services every day. For each performance obligation satisfied over time, we recognize revenue using an output method based on the value transferred to the customer. Revenue is recognized based on the transaction price and the observable outputs related to each performance obligation. We deem the following to be a faithful depiction of our progress in satisfying these performance obligations: • revenues and operating profits earned by the hotels during the reporting period for access to Hyatt’s IP and brand names, as they are indicative of the value third-party owners derive; • underlying revenues and operating profits of the hotels for the promise to provide management agreement services to the hotels; • award night redemptions for the administration of the loyalty program performance obligation; and • cardholder spend for the license to our brand name through our co-branded credit card, as it is indicative of the value our partner derives from the use of our name. Within our management agreements, we have two performance obligations: providing a license to Hyatt’s IP and providing management agreement services. Although these constitute two separate performance obligations, both obligations represent services that are satisfied over time, and Hyatt recognizes revenue using an output method based on the performance of the hotel. Therefore, we have not allocated the transaction price between these two performance obligations as the allocation would result in the same pattern of revenue recognition. Payments received in advance of performance under the contract are classified as contract liabilities and recognized as revenue as we perform under the contract.
Self Insurance	We obtain commercial insurance for potential losses for general liability, workers' compensation, automobile liability, employment practices, crime, property, cyber risk, and other miscellaneous coverages. A portion of the risk is retained on a self-insurance basis primarily through U.S. based and licensed captive insurance companies that are wholly owned subsidiaries of Hyatt and generally insure our deductibles and retentions. Reserve requirements are established based on actuarial projections of ultimate losses.
Commitments and Contingencies Other	We act as general partner of various partnerships owning hotel properties that are subject to mortgage indebtedness. These mortgage agreements generally limit the lender's recourse to security interests in assets financed and/or other assets of the partnership(s) and/or the general partner(s) thereof. In conjunction with financing obtained for our unconsolidated hospitality ventures, certain managed hotels, and other properties, we may provide standard indemnifications to the lender for loss, liability, or damage occurring as a result of our actions or actions of the other unconsolidated hospitality venture partners, respective hotel owners, or other third parties. As a result of certain dispositions, we have agreed to provide customary indemnifications to third-party purchasers for certain liabilities incurred prior to sale and for breach of certain representations and warranties made during the sales process, such as representations of valid title, authority, and environmental issues that may not be limited by a contractual monetary amount. These indemnification agreements survive until the applicable statutes of limitation expire or until the agreed upon contract terms expire. We are subject, from time to time, to various claims and contingencies related to lawsuits, taxes, and environmental matters, as well as commitments under contractual obligations. Many of these claims are covered under our current insurance programs, subject to deductibles. Although the ultimate liability for these matters cannot be determined at this point, based on information currently available, we do not expect the ultimate resolution of such claims and litigation will have a material effect on our condensed consolidated financial statements.
Segment Reporting	Our reportable segments are components of the business which are managed discretely and for which discrete financial information is reviewed regularly by the chief operating decision maker ("CODM") to assess performance and make decisions regarding the allocation of resources. Our CODM is our President and Chief Executive Officer. We define our reportable segments as follows: • Owned and leased hotels —This segment derives its earnings from owned and leased hotel properties located predominantly in the United States but also in certain international locations and for purposes of segment Adjusted EBITDA, includes our pro rata share of the Adjusted EBITDA of our unconsolidated hospitality ventures, based on our ownership percentage of each venture. Adjusted EBITDA includes intercompany expenses related to management fees paid to the Company's management and franchising segments, which are eliminated in consolidation. Intersegment revenues relate to promotional award redemptions earned by our owned and leased hotels related to our co-branded credit card and revenues that are deferred under the loyalty program for stays at our owned and leased hotels and are eliminated in consolidation. • Americas management and franchising —This segment derives its earnings primarily from a combination of hotel management and licensing of our portfolio of brands to franchisees located in the United States, Latin America, Canada, and the Caribbean. This segment's revenues also include the reimbursement of costs incurred on behalf of managed and franchised properties. These costs relate primarily to payroll costs at managed properties where the Company is the employer, as well as costs associated with reservations, sales, marketing, technology, and the loyalty program operated on behalf of owners of managed and franchised properties. The intersegment revenues relate to management fees earned from the Company's owned hotels and are eliminated in consolidation. • ASPAC management and franchising —This segment derives its earnings primarily from a combination of hotel management and licensing of our portfolio of brands to franchisees located in Southeast Asia, Greater China, Australia, South Korea, Japan, and Micronesia. This segment's revenues also include the reimbursement of costs incurred on behalf of managed and franchised properties. These costs relate primarily to reservations, sales, marketing, technology, and the loyalty program operated on behalf of owners of managed and franchised properties. The intersegment revenues relate to management fees earned from the Company’s owned hotels and are eliminated in consolidation. • EAME/SW Asia management and franchising —This segment derives its earnings primarily from a combination of hotel management and licensing of our portfolio of brands to franchisees located in Europe, Africa, the Middle East, India, Central Asia, and Nepal. This segment's revenues also include the reimbursement of costs incurred on behalf of managed and franchised properties. These costs relate primarily to reservations, sales, marketing, technology, and the loyalty program operated on behalf of owners of managed and franchised properties. The intersegment revenues relate to management fees earned from the Company’s owned hotels and are eliminated in consolidation. Our CODM evaluates performance based on owned and leased hotels revenues, management, franchise, and other fees revenues, and Adjusted EBITDA. Adjusted EBITDA, as we define it, is a non-GAAP measure. We define Adjusted EBITDA as net income attributable to Hyatt Hotels Corporation plus our pro rata share of unconsolidated hospitality ventures Adjusted EBITDA based on our ownership percentage of each venture, adjusted to exclude interest expense; provision for income taxes; depreciation and amortization; Contra Revenue; revenues for the reimbursement of costs incurred on behalf of managed and franchised properties; costs incurred on behalf of managed and franchised properties; equity earnings (losses) from unconsolidated hospitality ventures; stock-based compensation expense; gains (losses) on sales of real estate; asset impairments; and other income (loss), net.

Recently Issued Accounting Pr28

Recently Issued Accounting Pronouncements Recently Issued Accounting Pronouncements (Tables)	3 Months Ended
	Mar. 31, 2018
Accounting Policies [Abstract]
Schedule of New Accounting Pronouncements and Changes in Accounting Principles	The impact of the changes made to our condensed consolidated financial statements as a result of the adoption of ASU 2014-09, ASU 2016-01, and ASU 2016-16 were as follows: Three Months Ended March 31, 2017 As Reported Effect of the adoption of As Adjusted REVENUES: Owned and leased hotels $ 572 $ (3 ) $ 569 Management, franchise, and other fees 122 (8 ) 114 Amortization of management and franchise agreement assets constituting payments to customers — (4 ) (4 ) Net management, franchise, and other fees 122 (12 ) 110 Other revenues 22 (5 ) 17 Revenues for the reimbursement of costs incurred on behalf of managed and franchised properties 471 (41 ) 430 Total revenues 1,187 (61 ) 1,126 DIRECT AND SELLING, GENERAL, AND ADMINISTRATIVE EXPENSES: Owned and leased hotels 427 (3 ) 424 Depreciation and amortization 91 (4 ) 87 Other direct costs 19 (3 ) 16 Selling, general, and administrative 99 — 99 Costs incurred on behalf of managed and franchised properties 471 (26 ) 445 Direct and selling, general, and administrative expenses 1,107 (36 ) 1,071 Net gains and interest income from marketable securities held to fund rabbi trusts 15 — 15 Equity losses from unconsolidated hospitality ventures (3 ) — (3 ) Interest expense (21 ) — (21 ) Other income (loss), net 40 3 43 INCOME BEFORE INCOME TAXES 111 (22 ) 89 PROVISION FOR INCOME TAXES (41 ) 7 (34 ) NET INCOME 70 (15 ) 55 NET INCOME AND ACCRETION ATTRIBUTABLE TO NONCONTROLLING INTERESTS — — — NET INCOME ATTRIBUTABLE TO HYATT HOTELS CORPORATION $ 70 $ (15 ) $ 55 EARNINGS PER SHARE—Basic Net income $ 0.54 $ (0.11 ) $ 0.43 Net income attributable to Hyatt Hotels Corporation $ 0.54 $ (0.11 ) $ 0.43 EARNINGS PER SHARE—Diluted Net income $ 0.54 $ (0.12 ) $ 0.42 Net income attributable to Hyatt Hotels Corporation $ 0.54 $ (0.12 ) $ 0.42 December 31, 2017 January 1, 2018 As Reported Effect of the adoption of As Adjusted Effect of the adoption of ASU 2016-01 and ASU 2016-16 As Adjusted ASSETS Investments $ 211 $ 1 $ 212 $ (27 ) $ 185 Intangibles, net 683 (378 ) 305 — 305 Deferred tax assets 242 (101 ) 141 1 142 Other assets 1,006 378 1,384 22 1,406 TOTAL ASSETS 7,672 (100 ) 7,572 (4 ) 7,568 LIABILITIES, REDEEMABLE NONCONTROLLING INTEREST, AND EQUITY Accounts payable $ 175 $ (39 ) $ 136 $ — $ 136 Accrued expenses and other current liabilities 635 (283 ) 352 — 352 Current contract liabilities — 348 348 — 348 Long-term contract liabilities — 424 424 — 424 Other long-term liabilities 1,725 (862 ) 863 — 863 Total liabilities 4,131 (412 ) 3,719 — 3,719 Retained earnings 2,742 312 3,054 64 3,118 Accumulated other comprehensive loss (185 ) — (185 ) (68 ) (253 ) Total equity 3,531 312 3,843 (4 ) 3,839 TOTAL LIABILITIES, REDEEMABLE NONCONTROLLING INTEREST, AND EQUITY 7,672 (100 ) 7,572 (4 ) 7,568 The table below summarizes the effect on our condensed consolidated statements of cash flows for the three months ended March 31, 2017: Three Months Ended March 31, Increase/(decrease) 2017 Operating activities $ (6 ) Investing activities (5 ) Financing activities (1 ) Cash, cash equivalents, and restricted cash - beginning of year 91 Cash, cash equivalents, and restricted cash - end of period $ 79

Revenue Recognition (Tables)

Revenue Recognition (Tables)	3 Months Ended
	Mar. 31, 2018
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	The following tables present our revenues disaggregated by the nature of the product or service: Three months ended March 31, 2018 Disaggregated revenue stream Owned and leased hotels Americas management and franchising ASPAC management and franchising EAME/SW Asia management and franchising Corporate and other Eliminations Total Rooms revenues $ 297 $ — $ — $ — $ 7 $ (9 ) $ 295 Food and beverage 172 — — — 2 — 174 Other 38 — — — 8 — 46 Owned and leased hotels 507 — — — 17 (9 ) 515 Base management fees — 49 11 7 — (14 ) 53 Incentive management fees — 13 17 10 — (6 ) 34 Franchise fees — 28 — — — — 28 Other fees — 8 2 1 1 — 12 License fees — — — — 5 — 5 Management, franchise, and other fees — 98 30 18 6 (20 ) 132 Contra revenue — (3 ) (1 ) (1 ) — — (5 ) Net management, franchise, and other fees — 95 29 17 6 (20 ) 127 Other revenues — — — — 9 2 11 Revenues for the reimbursement of costs incurred on behalf of managed and franchised properties — 420 20 16 — — 456 Total $ 507 $ 515 $ 49 $ 33 $ 32 $ (27 ) $ 1,109 Three months ended March 31, 2017 Disaggregated revenue stream Owned and leased hotels Americas management and franchising ASPAC management and franchising EAME/SW Asia management and franchising Corporate and other Eliminations Total Rooms revenues $ 326 $ — $ — $ — $ 6 $ (9 ) $ 323 Food and beverage 195 — — — 3 — 198 Other 41 — — — 7 — 48 Owned and leased hotels 562 — — — 16 (9 ) 569 Base management fees — 48 9 6 — (16 ) 47 Incentive management fees — 12 14 9 — (5 ) 30 Franchise fees — 25 1 — — — 26 Other fees — 5 1 1 — — 7 License fees — — — — 4 — 4 Management, franchise, and other fees — 90 25 16 4 (21 ) 114 Contra revenue — (3 ) — (1 ) — — (4 ) Net management, franchise, and other fees — 87 25 15 4 (21 ) 110 Other revenues 13 — — — 2 2 17 Revenues for the reimbursement of costs incurred on behalf of managed and franchised properties — 401 17 12 — — 430 Total $ 575 $ 488 $ 42 $ 27 $ 22 $ (28 ) $ 1,126
Summary of Contract Liability	Contract liabilities consisted of the following at March 31, 2018 and December 31, 2017: March 31, 2018 December 31, 2017 $ Change % Change Contract liabilities - current $ 334 $ 348 $ (14 ) (4.1 )% Contract liabilities - noncurrent 431 424 7 1.9 % Total contract liabilities $ 765 $ 772 $ (7 ) (0.8 )% At March 31, 2018 and December 31, 2017, the contract liabilities balances above include the following: March 31, 2018 December 31, 2017 Advanced deposits $ 51 $ 59 Deferred revenue related to the loyalty program 570 561 Deferred revenue related to systemwide services 11 9 Initial fees received from franchise owners 29 27 Other deferred revenue 104 116 Total contract liabilities $ 765 $ 772

Debt and Equity Securities (Tab

Debt and Equity Securities (Tables)	3 Months Ended
	Mar. 31, 2018
Investments, Debt and Equity Securities [Abstract]
Equity Method Investments	Equity Method Investments March 31, 2018 December 31, 2017 Equity method investments $ 174 $ 185
Summarized Financial Information	The following table presents summarized financial information for all unconsolidated hospitality ventures in which we hold an investment accounted for under the equity method: Three Months Ended March 31, 2018 2017 Total revenues $ 132 $ 274 Gross operating profit 39 78 Loss from continuing operations (19 ) (18 ) Net loss (19 ) (18 )
Marketable Securities Held to Fund Operating Programs	Marketable Securities Held to Fund Operating Programs —Marketable securities held to fund operating programs, which are recorded at fair value and included on our condensed consolidated balance sheets, were as follows: March 31, 2018 December 31, 2017 Loyalty program $ 389 $ 403 Deferred compensation plans held in rabbi trusts (Note 8 and 10) 409 402 Captive insurance companies 111 111 Total marketable securities held to fund operating programs $ 909 $ 916 Less current portion of marketable securities held to fund operating programs included in cash and cash equivalents, short-term investments, and prepaids and other assets (151 ) (156 ) Marketable securities held to fund operating programs included in other assets $ 758 $ 760
Net Gains and Interest Income from Marketable Securities Held to Fund Operating Programs	Net realized and unrealized gains (losses) and interest income from marketable securities held to fund the loyalty program are recognized in other income (loss), net on our condensed consolidated statements of income: Three Months Ended March 31, 2018 2017 Loyalty program $ (4 ) $ 3 Net realized and unrealized gains (losses) and interest income from marketable securities held to fund rabbi trusts are recognized in net gains and interest income from marketable securities held to fund rabbi trusts on our condensed consolidated statements of income: Three Months Ended March 31, 2018 2017 Unrealized gains (losses) $ (1 ) $ 11 Realized gains 4 4 Net gains and interest income from marketable securities held to fund rabbi trusts $ 3 $ 15
Marketable Securities Held for Investment Purposes	Marketable Securities Held for Investment Purposes —Marketable securities held for investment purposes, which are recorded at fair value and included on our condensed consolidated balance sheets, were as follows: March 31, 2018 December 31, 2017 Interest bearing money market funds $ 9 $ 26 Time deposits 37 37 Common shares 124 131 Total marketable securities held for investment purposes $ 170 $ 194 Less current portion of marketable securities held for investment purposes included in cash and cash equivalents and short-term investments (46 ) (63 ) Marketable securities held for investment purposes included in other assets $ 124 $ 131
Investments Classified as Available For Sale	Preferred shares —During 2013, we also invested $271 million in Playa for convertible redeemable preferred shares which were classified as an AFS debt security. The fair value of the preferred shares was: 2017 Fair value at January 1 $ 290 Gross unrealized losses (54 ) Realized losses (1) (Note 18) (40 ) Interest income (Note 18) 94 Cash redemption (290 ) Fair value at March 31 $ — (1) The realized losses were the result of a difference between the fair value of the initial investment and the contractual redemption price of $8.40 per share.
Assets and Liabilities Measured at Fair Value on a Recurring Basis	We measured the following financial assets at fair value on a recurring basis: March 31, 2018 Cash and cash equivalents Short-term investments Prepaids and other assets Other assets Level One - Quoted Prices in Active Markets for Identical Assets Interest bearing money market funds $ 60 $ 60 $ — $ — $ — Mutual funds 409 — — — 409 Common shares 124 — — — 124 Level Two - Significant Other Observable Inputs Time deposits 50 — 40 — 10 U.S. government obligations 152 — — 33 119 U.S. government agencies 46 — 2 6 38 Corporate debt securities 170 — 12 29 129 Mortgage-backed securities 24 — — 5 19 Asset-backed securities 41 — — 9 32 Municipal and provincial notes and bonds 3 — — 1 2 Total $ 1,079 $ 60 $ 54 $ 83 $ 882 December 31, 2017 Cash and cash equivalents Short-term investments Prepaids and other assets Other assets Level One - Quoted Prices in Active Markets for Identical Assets Interest bearing money market funds $ 75 $ 75 $ — $ — $ — Mutual funds 402 — — — 402 Common shares 131 — — — 131 Level Two - Significant Other Observable Inputs Time deposits 50 — 39 — 11 U.S. government obligations 158 — — 38 120 U.S. government agencies 47 — 2 7 38 Corporate debt securities 179 — 8 33 138 Mortgage-backed securities 25 — — 6 19 Asset-backed securities 40 — — 10 30 Municipal and provincial notes and bonds 3 — — 1 2 Total $ 1,110 $ 75 $ 49 $ 95 $ 891

Financing Receivables (Tables)

Financing Receivables (Tables)	3 Months Ended
	Mar. 31, 2018
Accounts, Notes, Loans and Financing Receivable, Gross, Allowance, and Net [Abstract]
Financing Receivables	March 31, 2018 December 31, 2017 Unsecured financing to hotel owners $ 128 $ 127 Less allowance for losses (109 ) (108 ) Less current portion included in receivables, net (1 ) — Total long-term financing receivables, net of allowances $ 18 $ 19
Allowance for Losses and Impairments	The following table summarizes the activity in our unsecured financing receivables allowance: 2018 2017 Allowance at January 1 $ 108 $ 100 Provisions 2 2 Other adjustments (1 ) 1 Allowance at March 31 $ 109 $ 103
Credit Monitoring	Our unsecured financing receivables were as follows: March 31, 2018 Gross loan balance (principal and interest) Related allowance Net financing receivables Gross receivables on non-accrual status Loans $ 14 $ — $ 14 $ — Impaired loans (1) 59 (59 ) — 59 Total loans 73 (59 ) 14 59 Other financing arrangements 55 (50 ) 5 50 Total unsecured financing receivables $ 128 $ (109 ) $ 19 $ 109 (1) The unpaid principal balance was $44 million and the average recorded loan balance was $59 million at March 31, 2018 . December 31, 2017 Gross loan balance (principal and interest) Related allowance Net financing receivables Gross receivables on non-accrual status Loans $ 13 $ — $ 13 $ — Impaired loans (2) 59 (59 ) — 59 Total loans 72 (59 ) 13 59 Other financing arrangements 55 (49 ) 6 49 Total unsecured financing receivables $ 127 $ (108 ) $ 19 $ 108 (2) The unpaid principal balance was $44 million and the average recorded loan balance was $58 million at December 31, 2017 .

Acquisitions and Dispositions (

Acquisitions and Dispositions (Tables)	3 Months Ended
	Mar. 31, 2018
Business Combinations [Abstract]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	The following table summarizes the fair value of the identifiable net assets acquired in the acquisition of Miraval, which is recorded within corporate and other: Current assets, net of cash acquired $ 1 Property and equipment 172 Indefinite-lived intangibles (1) 37 Management agreement intangibles (2) 14 Goodwill (3) 21 Other definite-lived intangibles (4) 7 Total assets $ 252 Current liabilities $ 13 Deferred tax liabilities 3 Total liabilities 16 Total net assets acquired attributable to Hyatt Hotels Corporation 236 Total net assets acquired attributable to noncontrolling interests 1 Total net assets acquired $ 237 (1) Includes an intangible attributable to the Miraval brand. (2) Amortized over a useful life of 20 years. (3) The goodwill, of which $10 million is deductible for tax purposes, is attributable to Miraval's reputation as a renowned provider of wellness and mindfulness experiences, the extension of the Hyatt brand beyond traditional hotel stays, and the establishment of deferred tax liabilities. (4) Amortized over useful lives ranging from two to seven years.

Intangibles, Net (Tables)

Intangibles, Net (Tables)	3 Months Ended
	Mar. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Finite-Lived Intangible Assets	March 31, 2018 Weighted- average useful lives in years December 31, 2017 Management and franchise agreement intangibles $ 179 23 $ 178 Lease related intangibles 131 110 127 Brand and other indefinite-lived intangibles 53 — 53 Advanced bookings intangibles 9 6 9 Other definite-lived intangibles 9 11 9 381 376 Accumulated amortization (76 ) (71 ) Intangibles, net $ 305 $ 305 Three Months Ended March 31, 2018 2017 Amortization expense $ 3 $ 3
Schedule of Indefinite-Lived Intangible Assets	March 31, 2018 Weighted- average useful lives in years December 31, 2017 Management and franchise agreement intangibles $ 179 23 $ 178 Lease related intangibles 131 110 127 Brand and other indefinite-lived intangibles 53 — 53 Advanced bookings intangibles 9 6 9 Other definite-lived intangibles 9 11 9 381 376 Accumulated amortization (76 ) (71 ) Intangibles, net $ 305 $ 305 Three Months Ended March 31, 2018 2017 Amortization expense $ 3 $ 3
Schedule of Intangible Assets Amortization Expense	Three Months Ended March 31, 2018 2017 Amortization expense $ 3 $ 3

Other Assets (Tables)

Other Assets (Tables)	3 Months Ended
	Mar. 31, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Schedule of Other Assets	March 31, 2018 December 31, 2017 Marketable securities held to fund rabbi trusts (Note 4) $ 409 $ 402 Management and franchise agreement assets constituting payments to customers (1) 390 378 Loyalty program marketable securities (Note 4) 297 298 Common shares of Playa N.V. (Note 4) 124 131 Long-term investments 129 109 Other 70 66 Total other assets $ 1,419 $ 1,384 (1) Assets include cash consideration as well as other forms of consideration provided, such as debt repayment or performance guarantees.

Debt (Tables)

Debt (Tables)	3 Months Ended
	Mar. 31, 2018
Debt Disclosure [Abstract]
Fair Value, by Balance Sheet Grouping	March 31, 2018 Carrying value Fair value Quoted prices in active markets for identical assets (level one) Significant other observable inputs (level two) Significant unobservable inputs (level three) Debt (1) $ 1,451 $ 1,510 $ — $ 1,426 $ 84 (1) Excludes capital lease obligations of $13 million and unamortized discounts and deferred financing fees of $14 million . December 31, 2017 Carrying value Fair value Quoted prices in active markets for identical assets (level one) Significant other observable inputs (level two) Significant unobservable inputs (level three) Debt (2) $ 1,452 $ 1,546 $ — $ 1,459 $ 87 (2) Excludes capital lease obligations of $13 million and unamortized discounts and deferred financing fees of $14 million .

Other Long-Term Liabilities (Ta

Other Long-Term Liabilities (Tables)	3 Months Ended
	Mar. 31, 2018
Other Liabilities [Abstract]
Other Long-term Liabilities	March 31, 2018 December 31, 2017 Deferred compensation plans held to fund rabbi trusts (Note 4) $ 409 $ 402 Guarantee liabilities (Note 12) 99 104 Self-insurance liabilities (Note 12) 73 69 Deferred income taxes 64 62 Other 227 226 Total other long-term liabilities $ 872 $ 863

Commitments and Contingencies (

Commitments and Contingencies (Tables)	3 Months Ended
	Mar. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Schedule of Guarantor Obligations	The four managed hotels in France Other performance guarantees All performance guarantees 2018 2017 2018 2017 2018 2017 Beginning balance, January 1 $ 58 $ 66 $ 13 $ 13 $ 71 $ 79 Amortization of initial guarantee obligation liability into income (4 ) (3 ) (1 ) (1 ) (5 ) (4 ) Performance guarantee expense, net 27 26 1 — 28 26 Net payments during the period (23 ) (22 ) (1 ) (4 ) (24 ) (26 ) Foreign currency exchange, net 2 2 — — 2 2 Ending balance, March 31 $ 60 $ 69 $ 12 $ 8 $ 72 $ 77
Debt Repayment and Other Guarantees	Included within debt repayment and other guarantees are the following: Property description Maximum potential future payments Maximum exposure net of recoverability from third parties Other long-term liabilities recorded at March 31, 2018 Other long-term liabilities recorded at December 31, 2017 Year of guarantee expiration Hotel property in Washington State (1), (3), (4), (5) $ 215 $ — $ 24 $ 26 2020 Hotel properties in India (2), (3) 184 184 15 17 2020 Hotel property in Massachusetts (6) 107 107 1 1 2020 Hotel and residential properties in Brazil (1), (4) 98 40 4 4 various, through 2021 Hotel properties in California (1) 31 13 5 6 various, through 2021 Hotel property in Minnesota 25 25 2 2 2021 Hotel property in Arizona (1), (4) 25 — 1 1 2019 Other (1) 30 19 6 2 various, through 2022 Total $ 715 $ 388 $ 58 $ 59 (1) We have agreements with our unconsolidated hospitality venture partner, the respective hotel owners, or other third parties to recover certain amounts funded under the debt repayment guarantee; the recoverability mechanism may be in the form of cash, financing receivable, or HTM debt security. (2) Debt repayment guarantee is denominated in Indian rupees and translated using exchange rates at March 31, 2018 . We have the contractual right to recover amounts funded from the unconsolidated hospitality venture, which is a related party. We expect our maximum exposure to be $92 million , taking into account our partner’s 50% ownership interest in the unconsolidated hospitality venture. (3) Under certain events or conditions, we have the right to force the sale of the property(ies) in order to recover amounts funded. (4) If certain funding thresholds are met or if certain events occur, we have the ability to assume control of the property . This right only exists for the residential property in Brazil. (5) We are subject to a completion guarantee whereby the parties agree to substantially complete the construction of the project by a specified date. In the event of default, we are obligated to complete construction using the funds available from the outstanding loan. Any additional funds paid by us are subject to recovery through a HTM debt security. (6) We are subject to a completion guarantee whereby the parties agree to substantially complete the construction of the project by a specified date. In the event of default, we are obligated to complete construction and any additional funds paid by us are not recoverable.

Equity (Tables)

Equity (Tables)	3 Months Ended
	Mar. 31, 2018
Equity [Abstract]
Stockholders' Equity and Noncontrolling Interests	Stockholders' equity Noncontrolling interests in consolidated subsidiaries Total equity Balance at January 1, 2018 $ 3,833 $ 6 $ 3,839 Net income attributable to Hyatt Hotels Corporation 411 — 411 Other comprehensive income 23 — 23 Repurchase of common stock (75 ) — (75 ) Dividends (18 ) — (18 ) Employee stock plan issuance 1 — 1 Share-based payment activity 13 — 13 Balance at March 31, 2018 $ 4,188 $ 6 $ 4,194 Stockholders' Noncontrolling interests Total equity Balance at January 1, 2017 (a) $ 4,075 $ 5 $ 4,080 Net income attributable to Hyatt Hotels Corporation 55 — 55 Other comprehensive income 75 — 75 Contributions from noncontrolling interests — 1 1 Repurchase of common stock (348 ) — (348 ) Employee stock plan issuance 1 — 1 Share-based payment activity 13 — 13 Balance at March 31, 2017 $ 3,871 $ 6 $ 3,877 (a) Balances have been adjusted for the adoption of ASU 2014-09 with an opening adjustment to retained earnings of $172 million.
Accumulated Other Comprehensive Loss	Balance at Current period other comprehensive income (loss) before reclassification Amount reclassified from accumulated other comprehensive loss Balance at March 31, 2018 Foreign currency translation adjustments $ (243 ) $ 23 $ — $ (220 ) Unrecognized pension cost (7 ) — — (7 ) Unrealized losses on derivative instruments (3 ) — — (3 ) Accumulated other comprehensive income (loss) $ (253 ) $ 23 $ — $ (230 ) Balance at Current period other comprehensive income (loss) before reclassification Amount reclassified from accumulated other comprehensive loss Balance at Foreign currency translation adjustments $ (299 ) $ 41 $ — $ (258 ) Unrealized gains on AFS securities 33 34 — 67 Unrecognized pension cost (7 ) — — (7 ) Unrealized losses on derivative instruments (4 ) — — (4 ) Accumulated other comprehensive income (loss) $ (277 ) $ 75 $ — $ (202 )

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2018
Share-based Compensation [Abstract]
Compensation Expense Related to Long-Term Incentive Plan	Stock-based compensation expense included in selling, general, and administrative expense on our condensed consolidated statements of income related to these awards was as follows: Three Months Ended March 31, 2018 2017 SARs $ 8 $ 8 RSUs 9 8 PSUs 1 — Total $ 18 $ 16

Segment Information (Tables)

Segment Information (Tables)	3 Months Ended
	Mar. 31, 2018
Segment Reporting [Abstract]
Summarized Consolidated Financial Information by Segment	The table below shows summarized consolidated financial information by segment. Included within corporate and other are the results of Miraval, exhale, Hyatt Residence Club license fees, results related to our co- branded credit card, and unallocated corporate expenses. Three Months Ended March 31, 2018 2017 Owned and leased hotels Owned and leased hotels revenues $ 507 $ 562 Other revenues — 13 Intersegment revenues (a) 9 9 Adjusted EBITDA 113 142 Depreciation and amortization 68 74 Americas management and franchising Management, franchise, and other fees revenues 98 90 Contra revenue (3 ) (3 ) Revenues for the reimbursement of costs incurred on behalf of managed and franchised properties 420 401 Intersegment revenues (a) 18 19 Adjusted EBITDA 87 76 Depreciation and amortization 4 2 ASPAC management and franchising Management, franchise, and other fees revenues 30 25 Contra revenue (1 ) — Revenues for the reimbursement of costs incurred on behalf of managed and franchised properties 20 17 Intersegment revenues (a) — — Adjusted EBITDA 18 15 Depreciation and amortization — — EAME/SW Asia management and franchising Management, franchise, and other fees revenues 18 16 Contra revenue (1 ) (1 ) Revenues for the reimbursement of costs incurred on behalf of managed and franchised properties 16 12 Intersegment revenues (a) 2 2 Adjusted EBITDA 10 8 Depreciation and amortization — — Corporate and other Revenues 32 22 Intersegment revenues (a) (2 ) (2 ) Adjusted EBITDA (29 ) (28 ) Depreciation and amortization 11 11 Eliminations Revenues (a) (27 ) (28 ) Adjusted EBITDA 3 5 TOTAL Revenues $ 1,109 $ 1,126 Adjusted EBITDA 202 218 Depreciation and amortization 83 87 (a) Intersegment revenues are included in management, franchise, and other fees revenues, owned and leased hotels revenues, and other revenues and eliminated in Eliminations.
Reconciliation of Consolidated Adjusted EBITDA to EBITDA and a Reconciliation of EBITDA to Net Income Attributable to Hyatt Hotels Corporation	The table below provides a reconciliation of our net income attributable to Hyatt Hotels Corporation to EBITDA and a reconciliation of EBITDA to our consolidated Adjusted EBITDA: Three Months Ended March 31, 2018 2017 Net income attributable to Hyatt Hotels Corporation $ 411 $ 55 Interest expense 19 21 Provision for income taxes 150 34 Depreciation and amortization 83 87 EBITDA 663 197 Contra revenue 5 4 Revenues for the reimbursement of costs incurred on behalf of managed and franchised properties (456 ) (430 ) Costs incurred on behalf of managed and franchised properties 460 445 Equity losses from unconsolidated hospitality ventures 13 3 Stock-based compensation expense (Note 14) 18 16 Gains on sales of real estate (Note 6) (529 ) — Other (income) loss, net (Note 18) 18 (43 ) Pro rata share of unconsolidated hospitality ventures Adjusted EBITDA 10 26 Adjusted EBITDA $ 202 $ 218

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2018
Earnings Per Share [Abstract]
Schedule of the Calculation of Basic and Diluted Earnings Per Share	The calculation of basic and diluted earnings per share, including a reconciliation of the numerator and denominator, are as follows: Three Months Ended March 31, 2018 2017 Numerator: Net income $ 411 $ 55 Net income and accretion attributable to noncontrolling interests — — Net income attributable to Hyatt Hotels Corporation $ 411 $ 55 Denominator: Basic weighted average shares outstanding 118,652,054 129,746,644 Share-based compensation 2,126,296 1,250,891 Diluted weighted average shares outstanding 120,778,350 130,997,535 Basic Earnings Per Share: Net income $ 3.47 $ 0.43 Net income and accretion attributable to noncontrolling interests — — Net income attributable to Hyatt Hotels Corporation $ 3.47 $ 0.43 Diluted Earnings Per Share: Net income $ 3.40 $ 0.42 Net income and accretion attributable to noncontrolling interests — — Net income attributable to Hyatt Hotels Corporation $ 3.40 $ 0.42
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share	The computations of diluted net income per share for the three months ended March 31, 2018 and March 31, 2017 do not include the following shares of Class A common stock assumed to be issued as stock- settled SARs, RSUs, and an equity-classified forward contract because they are anti- dilutive. Three Months Ended March 31, 2018 2017 SARs — 39,200 RSUs 200 — Equity-classified forward contract under the March 2017 ASR — 26,800

Other Income (Loss), Net (Table

Other Income (Loss), Net (Tables)	3 Months Ended
	Mar. 31, 2018
Other Income and Expenses [Abstract]
Other Income (Loss), Net	Three Months Ended March 31, 2018 2017 Interest income (Note 4) $ 5 $ 97 Depreciation recovery 5 6 Performance guarantee liability amortization (Note 12) 5 4 Debt repayment guarantee liability amortization (Note 12) 3 3 Pre-condemnation income 2 — Realized losses (Note 4) (1 ) (41 ) Unrealized (losses) gains (Note 4) (12 ) 1 Performance guarantee expense, net (Note 12) (28 ) (26 ) Other, net 3 (1 ) Other income (loss), net $ (18 ) $ 43

Organization (Details)

Organization (Details)	Mar. 31, 2018hotelcountryroom
Organization
Number of countries in which entity operates (number of countries) | country	58
Full service
Organization
Number of hotels operated or franchised	334
Number of rooms operated or franchised (number of rooms) | room	128,893
Select service
Organization
Number of hotels operated or franchised	394
Number of rooms operated or franchised (number of rooms) | room	55,937
Select service | United States
Organization
Number of hotels operated or franchised	345
All inclusive
Organization
Number of hotels operated or franchised	6
Number of rooms operated or franchised (number of rooms) | room	2,401
Wellness resorts
Organization
Number of hotels operated or franchised	3
Number of rooms operated or franchised (number of rooms) | room	399

Recently Issued Accounting Pr44

Recently Issued Accounting Pronouncements - Narrative (Details) - USD ($)		Jan. 01, 2018	Mar. 31, 2018		Mar. 31, 2017		Dec. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle
Contract liabilities			$ (7,000,000)
Retained earnings		$ 3,118,000,000	3,511,000,000				$ 3,054,000,000
Restricted cash, current			450,000,000	[1]	$ 64,000,000	[1]	234,000,000
Restricted cash, noncurrent	[1]		19,000,000		15,000,000
Reclassification out of investing activities			(935,000,000)		96,000,000
Reclassification into operating activities			54,000,000		141,000,000
Reclassification in financing activities			$ (109,000,000)		(166,000,000)
Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle
Deferred gain on sale of property		523,000,000
Reclassification out of investing activities							3,000,000
Reclassification into operating activities							3,000,000
Reclassification in financing activities							0
Accounting Standards Update 2016-16
New Accounting Pronouncements or Change in Accounting Principle
Retained earnings		(4,000,000)
Accounting Standards Update 2016-18
New Accounting Pronouncements or Change in Accounting Principle
Restricted cash, current							249,000,000
Restricted cash, noncurrent							$ 15,000,000
Reclassification out of investing activities					5,000,000
Reclassification into operating activities					(6,000,000)
Reclassification in financing activities					$ (1,000,000)
Loyalty Program | Accounting Standards Update 2014-09
New Accounting Pronouncements or Change in Accounting Principle
Contract liabilities		116,000,000
Retained Earnings | Accounting Standards Update 2016-01
New Accounting Pronouncements or Change in Accounting Principle
Cumulative effect of adoption		(68,000,000)
AOCI | Accounting Standards Update 2016-01
New Accounting Pronouncements or Change in Accounting Principle
Cumulative effect of adoption		$ 68,000,000
[1]	Restricted cash generally represents sales proceeds pursuant to like-kind exchanges, captive insurance subsidiary requirements, debt service on bonds, escrow deposits, and other arrangements.

Recently Issued Accounting Pr45

Recently Issued Accounting Pronouncements - Schedule of Effect of ASU 2016-18 (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
New Accounting Pronouncements or Change in Accounting Principle
Operating activities	$ 54	$ 141
Investing activities	935	(96)
Financing activities	(109)	(166)
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH—BEGINNING OF YEAR	752	573	$ 573
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH—END OF PERIOD	$ 1,629	453	752
Accounting Standards Update 2016-18
New Accounting Pronouncements or Change in Accounting Principle
Operating activities		(6)
Investing activities		(5)
Financing activities		(1)
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH—BEGINNING OF YEAR		91	$ 91
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH—END OF PERIOD		$ 79

Recently Issued Accounting Pr46

Recently Issued Accounting Pronouncements - Schedule of Effects of ASU 2014-09, 2016-01, and 2016-16 (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Jan. 01, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Statement [Abstract]
Owned and leased hotels	$ 515	$ 569
Management, franchise, and other fees	132	114
Amortization of management and franchise agreement assets constituting payments to customers	(5)	(4)
Net management, franchise, and other fees	127	110
Other revenues	11	17
Revenues for the reimbursement of costs incurred on behalf of managed and franchised properties	456	430
Total revenues	1,109	1,126
Owned and leased hotels	384	424
Depreciation and amortization	83	87
Other direct costs	8	16
Selling, general, and administrative	95	99
Costs incurred on behalf of managed and franchised properties	460	445
Direct and selling, general, and administrative expenses	1,030	1,071
Net gains and interest income from marketable securities held to fund rabbi trusts	3	15
Equity losses from unconsolidated hospitality ventures	(13)	(3)
Interest expense	(19)	(21)
Other income (loss), net	(18)	43
INCOME BEFORE INCOME TAXES	561	89
PROVISION FOR INCOME TAXES	(150)	(34)
NET INCOME	411	55
NET INCOME AND ACCRETION ATTRIBUTABLE TO NONCONTROLLING INTERESTS	0	0
NET INCOME ATTRIBUTABLE TO HYATT HOTELS CORPORATION	$ 411	$ 55
Net income—Basic (in dollars per share)	$ 3.47	$ 0.43
Net income attributable to Hyatt Hotels Corporation—Basic (in dollars per share)	3.47	0.43
Net income—Diluted (in dollars per share)	3.40	0.42
Net income attributable to Hyatt Hotels Corporation—Diluted (in dollars per share)	$ 3.40	$ 0.42
Statement of Financial Position [Abstract]
Investments	$ 174		$ 185	$ 212
Intangibles, net	305		305	305
Deferred tax assets	149		142	141
Other assets	1,419		1,406	1,384
TOTAL ASSETS	7,987		7,568	7,572
Accounts payable	131		136	136
Accrued expenses and other current liabilities	466		352	352
Current contract liabilities	334		348	348
Long-term contract liabilities	431		424	424
Other long-term liabilities	872		863	863
Total liabilities	3,793		3,719	3,719
Retained earnings	3,511		3,118	3,054
Accumulated other comprehensive loss	(230)		(253)	(185)
Total equity	4,194	$ 3,877	3,839	3,843	$ 4,080
TOTAL LIABILITIES, REDEEMABLE NONCONTROLLING INTEREST, AND EQUITY	$ 7,987		7,568	7,572
Previously Reported
Income Statement [Abstract]
Owned and leased hotels		572
Management, franchise, and other fees		122
Amortization of management and franchise agreement assets constituting payments to customers		0
Net management, franchise, and other fees		122
Other revenues		22
Revenues for the reimbursement of costs incurred on behalf of managed and franchised properties		471
Total revenues		1,187
Owned and leased hotels		427
Depreciation and amortization		91
Other direct costs		19
Selling, general, and administrative		99
Costs incurred on behalf of managed and franchised properties		471
Direct and selling, general, and administrative expenses		1,107
Net gains and interest income from marketable securities held to fund rabbi trusts		15
Equity losses from unconsolidated hospitality ventures		(3)
Interest expense		(21)
Other income (loss), net		40
INCOME BEFORE INCOME TAXES		111
PROVISION FOR INCOME TAXES		(41)
NET INCOME		70
NET INCOME AND ACCRETION ATTRIBUTABLE TO NONCONTROLLING INTERESTS		0
NET INCOME ATTRIBUTABLE TO HYATT HOTELS CORPORATION		$ 70
Net income—Basic (in dollars per share)		$ 0.54
Net income attributable to Hyatt Hotels Corporation—Basic (in dollars per share)		0.54
Net income—Diluted (in dollars per share)		0.54
Net income attributable to Hyatt Hotels Corporation—Diluted (in dollars per share)		$ 0.54
Statement of Financial Position [Abstract]
Investments				211
Intangibles, net				683
Deferred tax assets				242
Other assets				1,006
TOTAL ASSETS				7,672
Accounts payable				175
Accrued expenses and other current liabilities				635
Current contract liabilities				0
Long-term contract liabilities				0
Other long-term liabilities				1,725
Total liabilities				4,131
Retained earnings				2,742
Accumulated other comprehensive loss				(185)
Total equity				3,531
TOTAL LIABILITIES, REDEEMABLE NONCONTROLLING INTEREST, AND EQUITY				7,672
Restatement Adjustment | Accounting Standards Update 2014-09
Income Statement [Abstract]
Owned and leased hotels		$ (3)
Management, franchise, and other fees		(8)
Amortization of management and franchise agreement assets constituting payments to customers		(4)
Net management, franchise, and other fees		(12)
Other revenues		(5)
Revenues for the reimbursement of costs incurred on behalf of managed and franchised properties		(41)
Total revenues		(61)
Owned and leased hotels		(3)
Depreciation and amortization		(4)
Other direct costs		(3)
Selling, general, and administrative		0
Costs incurred on behalf of managed and franchised properties		(26)
Direct and selling, general, and administrative expenses		(36)
Net gains and interest income from marketable securities held to fund rabbi trusts		0
Equity losses from unconsolidated hospitality ventures		0
Interest expense		0
Other income (loss), net		3
INCOME BEFORE INCOME TAXES		(22)
PROVISION FOR INCOME TAXES		7
NET INCOME		(15)
NET INCOME AND ACCRETION ATTRIBUTABLE TO NONCONTROLLING INTERESTS		0
NET INCOME ATTRIBUTABLE TO HYATT HOTELS CORPORATION		$ (15)
Net income—Basic (in dollars per share)		$ (0.11)
Net income attributable to Hyatt Hotels Corporation—Basic (in dollars per share)		(0.11)
Net income—Diluted (in dollars per share)		(0.12)
Net income attributable to Hyatt Hotels Corporation—Diluted (in dollars per share)		$ (0.12)
Statement of Financial Position [Abstract]
Investments				1
Intangibles, net				(378)
Deferred tax assets				(101)
Other assets				378
TOTAL ASSETS				(100)
Accounts payable				(39)
Accrued expenses and other current liabilities				(283)
Current contract liabilities				348
Long-term contract liabilities				424
Other long-term liabilities				(862)
Total liabilities				(412)
Retained earnings			172	312
Accumulated other comprehensive loss				0
Total equity				312
TOTAL LIABILITIES, REDEEMABLE NONCONTROLLING INTEREST, AND EQUITY				$ (100)
Restatement Adjustment | Accounting Standards Update 2016-01 And Accounting Standards Update 2016-16
Statement of Financial Position [Abstract]
Investments			(27)
Intangibles, net			0
Deferred tax assets			1
Other assets			22
TOTAL ASSETS			(4)
Accounts payable			0
Accrued expenses and other current liabilities			0
Current contract liabilities			0
Long-term contract liabilities			0
Other long-term liabilities			0
Total liabilities			0
Retained earnings			64
Accumulated other comprehensive loss			(68)
Total equity			(4)
TOTAL LIABILITIES, REDEEMABLE NONCONTROLLING INTEREST, AND EQUITY			$ (4)

Revenue Recognition - Schedule

Revenue Recognition - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	$ 1,109	$ 1,126
Rooms revenues
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	295	323
Food and beverage
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	174	198
Other
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	46	48
Owned and leased hotels
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	515	569
Base management fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	53	47
Incentive management fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	34	30
Franchise fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	28	26
Other fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	12	7
License fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	5	4
Management, franchise, and other fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	132	114
Contra revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	(5)	(4)
Net management, franchise, and other fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	127	110
Other revenues
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	11	17
Revenues for the reimbursement of costs incurred on behalf of managed and franchised properties
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	456	430
Operating segments | Owned and leased hotels
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	507	575
Operating segments | Owned and leased hotels | Rooms revenues
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	297	326
Operating segments | Owned and leased hotels | Food and beverage
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	172	195
Operating segments | Owned and leased hotels | Other
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	38	41
Operating segments | Owned and leased hotels | Owned and leased hotels
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	507	562
Operating segments | Owned and leased hotels | Base management fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Operating segments | Owned and leased hotels | Incentive management fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Operating segments | Owned and leased hotels | Franchise fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Operating segments | Owned and leased hotels | Other fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Operating segments | Owned and leased hotels | License fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Operating segments | Owned and leased hotels | Management, franchise, and other fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Operating segments | Owned and leased hotels | Contra revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Operating segments | Owned and leased hotels | Net management, franchise, and other fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Operating segments | Owned and leased hotels | Other revenues
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	13
Operating segments | Owned and leased hotels | Revenues for the reimbursement of costs incurred on behalf of managed and franchised properties
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Operating segments | Americas management and franchising
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	515	488
Operating segments | Americas management and franchising | Rooms revenues
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Operating segments | Americas management and franchising | Food and beverage
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Operating segments | Americas management and franchising | Other
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Operating segments | Americas management and franchising | Owned and leased hotels
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Operating segments | Americas management and franchising | Base management fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	49	48
Operating segments | Americas management and franchising | Incentive management fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	13	12
Operating segments | Americas management and franchising | Franchise fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	28	25
Operating segments | Americas management and franchising | Other fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	8	5
Operating segments | Americas management and franchising | License fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Operating segments | Americas management and franchising | Management, franchise, and other fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	98	90
Operating segments | Americas management and franchising | Contra revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	(3)	(3)
Operating segments | Americas management and franchising | Net management, franchise, and other fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	95	87
Operating segments | Americas management and franchising | Other revenues
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Operating segments | Americas management and franchising | Revenues for the reimbursement of costs incurred on behalf of managed and franchised properties
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	420	401
Operating segments | ASPAC management and franchising
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	49	42
Operating segments | ASPAC management and franchising | Rooms revenues
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Operating segments | ASPAC management and franchising | Food and beverage
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Operating segments | ASPAC management and franchising | Other
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Operating segments | ASPAC management and franchising | Owned and leased hotels
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Operating segments | ASPAC management and franchising | Base management fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	11	9
Operating segments | ASPAC management and franchising | Incentive management fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	17	14
Operating segments | ASPAC management and franchising | Franchise fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	1
Operating segments | ASPAC management and franchising | Other fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	2	1
Operating segments | ASPAC management and franchising | License fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Operating segments | ASPAC management and franchising | Management, franchise, and other fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	30	25
Operating segments | ASPAC management and franchising | Contra revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	(1)	0
Operating segments | ASPAC management and franchising | Net management, franchise, and other fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	29	25
Operating segments | ASPAC management and franchising | Other revenues
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Operating segments | ASPAC management and franchising | Revenues for the reimbursement of costs incurred on behalf of managed and franchised properties
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	20	17
Operating segments | EAME/SW Asia management and franchising
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	33	27
Operating segments | EAME/SW Asia management and franchising | Rooms revenues
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Operating segments | EAME/SW Asia management and franchising | Food and beverage
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Operating segments | EAME/SW Asia management and franchising | Other
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Operating segments | EAME/SW Asia management and franchising | Owned and leased hotels
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Operating segments | EAME/SW Asia management and franchising | Base management fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	7	6
Operating segments | EAME/SW Asia management and franchising | Incentive management fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	10	9
Operating segments | EAME/SW Asia management and franchising | Franchise fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Operating segments | EAME/SW Asia management and franchising | Other fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	1	1
Operating segments | EAME/SW Asia management and franchising | License fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Operating segments | EAME/SW Asia management and franchising | Management, franchise, and other fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	18	16
Operating segments | EAME/SW Asia management and franchising | Contra revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	(1)	(1)
Operating segments | EAME/SW Asia management and franchising | Net management, franchise, and other fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	17	15
Operating segments | EAME/SW Asia management and franchising | Other revenues
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Operating segments | EAME/SW Asia management and franchising | Revenues for the reimbursement of costs incurred on behalf of managed and franchised properties
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	16	12
Corporate and other
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	32	22
Corporate and other | Rooms revenues
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	7	6
Corporate and other | Food and beverage
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	2	3
Corporate and other | Other
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	8	7
Corporate and other | Owned and leased hotels
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	17	16
Corporate and other | Base management fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Corporate and other | Incentive management fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Corporate and other | Franchise fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Corporate and other | Other fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	1	0
Corporate and other | License fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	5	4
Corporate and other | Management, franchise, and other fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	6	4
Corporate and other | Contra revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Corporate and other | Net management, franchise, and other fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	6	4
Corporate and other | Other revenues
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	9	2
Corporate and other | Revenues for the reimbursement of costs incurred on behalf of managed and franchised properties
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Eliminations
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	(27)	(28)
Eliminations | Rooms revenues
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	(9)	(9)
Eliminations | Food and beverage
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Eliminations | Other
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Eliminations | Owned and leased hotels
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	(9)	(9)
Eliminations | Base management fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	(14)	(16)
Eliminations | Incentive management fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	(6)	(5)
Eliminations | Franchise fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Eliminations | Other fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Eliminations | License fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Eliminations | Management, franchise, and other fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	(20)	(21)
Eliminations | Contra revenue
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	0	0
Eliminations | Net management, franchise, and other fees
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	(20)	(21)
Eliminations | Other revenues
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	2	2
Eliminations | Revenues for the reimbursement of costs incurred on behalf of managed and franchised properties
Disaggregation of Revenue [Line Items]
Revenue from contract with customer	$ 0	$ 0

Revenue Recognition - Contract

Revenue Recognition - Contract Balances (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract assets	$ 21				$ 0
Current contract liabilities	334			$ 348	348
Contract liabilities - current, dollar change	$ (14)
Contract liabilities - current, percent change	(4.10%)
Contract liabilities - noncurrent	$ 431			$ 424	424
Contract liabilities - noncurrent, dollar change	$ 7
Contract liabilities - noncurrent, percent change	1.90%
Total contract liabilities	$ 765				772
Contract liabilities, dollar change	$ (7)
Contract liabilities, percent change	(0.80%)
Revenue recognized from contract with customer	$ 224	$ 215
Advanced deposits
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Total contract liabilities	51				59
Deferred revenue related to the loyalty program
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Total contract liabilities	570				561
Deferred revenue related to systemwide services
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Total contract liabilities	11				9
Initial fees received from franchise owners
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Total contract liabilities	29				27
Other deferred revenue
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Total contract liabilities	$ 104				$ 116
Scenario, forecast
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract assets			$ 0

Revenue Recognition - Remaining

Revenue Recognition - Remaining Performance Obligation (Details) $ in Millions	3 Months Ended
	Mar. 31, 2018USD ($)
Revenue from Contract with Customer [Abstract]
Remaining performance obligation	$ 160
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligation, percent recognized	45.00%
Remaining performance obligation, period	1 year

Debt and Equity Securities - Sc

Debt and Equity Securities - Schedule of Equity Method Investment Balances (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Equity method investments	$ 174	$ 185

Debt and Equity Securities - Na

Debt and Equity Securities - Narrative (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017	Dec. 31, 2013
Schedule of Debt and Equity Method Investments
Equity method investment, net sales proceeds		$ 9	$ 4
Equity method investment, realized gain on disposal		8	2
Equity method investment, impairment charges		16	0
Interest income		5	$ 97
Held-to-maturity securities		47		$ 47
Equity securities without a readily determinable fair value		27		$ 27
Playa Hotels & Resorts N.V. | Common shares
Schedule of Debt and Equity Method Investments
Ownership percentage	11.57%
Increase in other income (loss)		$ (7)
Playa Hotels & Resorts N.V. | Preferred shares
Schedule of Debt and Equity Method Investments
Available-for-sale securities, amortized cost basis					$ 271

Debt and Equity Securities - Su

Debt and Equity Securities - Summarized Financial Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Total revenues	$ 132	$ 274
Gross operating profit	39	78
Loss from continuing operations	(19)	(18)
Net loss	$ (19)	$ (18)

Debt and Equity Securities - He

Debt and Equity Securities - Held to Fund Operating Programs (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Loyalty program
Schedule of Investments
Total marketable securities held for investment/operating purposes	$ 389	$ 403
Deferred compensation plans held in rabbi trusts
Schedule of Investments
Total marketable securities held for investment/operating purposes	409	402
Captive insurance companies
Schedule of Investments
Total marketable securities held for investment/operating purposes	111	111
Held for operating programs
Schedule of Investments
Total marketable securities held for investment/operating purposes	909	916
Less current portion of marketable securities held to fund operating programs included in cash and cash equivalents, short-term investments, and prepaids and other assets	(151)	(156)
Marketable securities held to fund operating programs included in other assets	$ 758	$ 760

Debt and Equity Securities - Ga

Debt and Equity Securities - Gain (loss) on Investments Held to Fund Operating Programs (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Gain (Loss) on Investments [Line Items]
Loyalty program	$ 3	$ 15
Net gains and interest income from marketable securities held to fund rabbi trusts	3	15
Loyalty program
Gain (Loss) on Investments [Line Items]
Loyalty program	(4)	3
Net gains and interest income from marketable securities held to fund rabbi trusts	(4)	3
Deferred compensation plans held in rabbi trusts
Gain (Loss) on Investments [Line Items]
Loyalty program	3	15
Unrealized gains (losses)	(1)	11
Realized gains	4	4
Net gains and interest income from marketable securities held to fund rabbi trusts	$ 3	$ 15

Debt and Equity Securities - 55

Debt and Equity Securities - Held for Investment Purposes (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Schedule of Investments
Common shares	$ 124	$ 131
Held for Investment Purposes
Schedule of Investments
Interest bearing money market funds	9	26
Time deposits	37	37
Common shares	124	131
Total marketable securities held for investment/operating purposes	170	194
Less current portion of marketable securities held for investment purposes included in cash and cash equivalents and short-term investments	(46)	(63)
Marketable securities held for investment purposes included in other assets	$ 124	$ 131

Debt and Equity Securities - Pr

Debt and Equity Securities - Preferred Shares (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Realized losses (Note 4)	$ (1)	$ (41)
Interest income	$ 5	97
Playa Hotels & Resorts B.V. | Preferred shares
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Fair value beginning balance		290
Gross unrealized losses		(54)
Realized losses (Note 4)		(40)
Interest income		94
Cash redemption		(290)
Fair value ending balance		$ 0
Redeemable convertible preferred shares redemption, price per share (in dollars per share)		$ 8.40

Debt and Equity Securities - Fa

Debt and Equity Securities - Fair Value of Investments (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	$ 1,079	$ 1,110
Level One - Quoted Prices in Active Markets for Identical Assets | Interest bearing money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	60	75
Level One - Quoted Prices in Active Markets for Identical Assets | Mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	409	402
Level One - Quoted Prices in Active Markets for Identical Assets | Common shares
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	124	131
Level Two - Significant Other Observable Inputs | Time deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	50	50
Level Two - Significant Other Observable Inputs | U.S. government obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	152	158
Level Two - Significant Other Observable Inputs | U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	46	47
Level Two - Significant Other Observable Inputs | Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	170	179
Level Two - Significant Other Observable Inputs | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	24	25
Level Two - Significant Other Observable Inputs | Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	41	40
Level Two - Significant Other Observable Inputs | Municipal and provincial notes and bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	3	3
Cash and cash equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	60	75
Cash and cash equivalents | Level One - Quoted Prices in Active Markets for Identical Assets | Interest bearing money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	60	75
Cash and cash equivalents | Level One - Quoted Prices in Active Markets for Identical Assets | Mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	0	0
Cash and cash equivalents | Level One - Quoted Prices in Active Markets for Identical Assets | Common shares
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	0	0
Cash and cash equivalents | Level Two - Significant Other Observable Inputs | Time deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	0	0
Cash and cash equivalents | Level Two - Significant Other Observable Inputs | U.S. government obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	0	0
Cash and cash equivalents | Level Two - Significant Other Observable Inputs | U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	0	0
Cash and cash equivalents | Level Two - Significant Other Observable Inputs | Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	0	0
Cash and cash equivalents | Level Two - Significant Other Observable Inputs | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	0	0
Cash and cash equivalents | Level Two - Significant Other Observable Inputs | Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	0	0
Cash and cash equivalents | Level Two - Significant Other Observable Inputs | Municipal and provincial notes and bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	0	0
Short-term investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	54	49
Short-term investments | Level One - Quoted Prices in Active Markets for Identical Assets | Interest bearing money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	0	0
Short-term investments | Level One - Quoted Prices in Active Markets for Identical Assets | Mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	0	0
Short-term investments | Level One - Quoted Prices in Active Markets for Identical Assets | Common shares
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	0	0
Short-term investments | Level Two - Significant Other Observable Inputs | Time deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	40	39
Short-term investments | Level Two - Significant Other Observable Inputs | U.S. government obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	0	0
Short-term investments | Level Two - Significant Other Observable Inputs | U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	2	2
Short-term investments | Level Two - Significant Other Observable Inputs | Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	12	8
Short-term investments | Level Two - Significant Other Observable Inputs | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	0	0
Short-term investments | Level Two - Significant Other Observable Inputs | Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	0	0
Short-term investments | Level Two - Significant Other Observable Inputs | Municipal and provincial notes and bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	0	0
Prepaids and other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	83	95
Prepaids and other assets | Level One - Quoted Prices in Active Markets for Identical Assets | Interest bearing money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	0	0
Prepaids and other assets | Level One - Quoted Prices in Active Markets for Identical Assets | Mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	0	0
Prepaids and other assets | Level One - Quoted Prices in Active Markets for Identical Assets | Common shares
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	0	0
Prepaids and other assets | Level Two - Significant Other Observable Inputs | Time deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	0	0
Prepaids and other assets | Level Two - Significant Other Observable Inputs | U.S. government obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	33	38
Prepaids and other assets | Level Two - Significant Other Observable Inputs | U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	6	7
Prepaids and other assets | Level Two - Significant Other Observable Inputs | Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	29	33
Prepaids and other assets | Level Two - Significant Other Observable Inputs | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	5	6
Prepaids and other assets | Level Two - Significant Other Observable Inputs | Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	9	10
Prepaids and other assets | Level Two - Significant Other Observable Inputs | Municipal and provincial notes and bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	1	1
Other assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	882	891
Other assets | Level One - Quoted Prices in Active Markets for Identical Assets | Interest bearing money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	0	0
Other assets | Level One - Quoted Prices in Active Markets for Identical Assets | Mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	409	402
Other assets | Level One - Quoted Prices in Active Markets for Identical Assets | Common shares
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	124	131
Other assets | Level Two - Significant Other Observable Inputs | Time deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	10	11
Other assets | Level Two - Significant Other Observable Inputs | U.S. government obligations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	119	120
Other assets | Level Two - Significant Other Observable Inputs | U.S. government agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	38	38
Other assets | Level Two - Significant Other Observable Inputs | Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	129	138
Other assets | Level Two - Significant Other Observable Inputs | Mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	19	19
Other assets | Level Two - Significant Other Observable Inputs | Asset-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	32	30
Other assets | Level Two - Significant Other Observable Inputs | Municipal and provincial notes and bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Investments, fair value disclosure	$ 2	$ 2

Financing Receivables - Schedul

Financing Receivables - Schedule of Financing Receivables (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable
Total long-term financing receivables, net of allowances	$ 18	$ 19
Unsecured financing
Accounts, Notes, Loans and Financing Receivable
Unsecured financing to hotel owners	128	127
Less allowance for losses	(109)	(108)	$ (103)	$ (100)
Less current portion included in receivables, net	(1)	0
Total long-term financing receivables, net of allowances	$ 18	$ 19

Financing Receivables - Allowan

Financing Receivables - Allowance for Losses and Impairments (Details) - Unsecured financing - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Allowance for Losses and Impairments
Allowance beginning Balance	$ 108	$ 100
Provisions	2	2
Other adjustments	(1)	1
Allowance ending Balance	$ 109	$ 103

Financing Receivables - Credit

Financing Receivables - Credit Monitoring (Details) - Unsecured financing - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Dec. 31, 2016
Unsecured Financing Receivables
Gross loan balance (principal and interest)	$ 128	$ 127
Related allowance	(109)	(108)	$ (103)	$ (100)
Net financing receivables	19	19
Gross receivables on non-accrual status	109	108
Loans
Unsecured Financing Receivables
Gross loan balance (principal and interest)	14	13
Related allowance	0	0
Net financing receivables	14	13
Gross receivables on non-accrual status	0	0
Impaired loans
Unsecured Financing Receivables
Impaired Loans	59	59
Impaired loans, allowance	(59)	(59)
Net financing receivables	0	0
Gross receivables on non-accrual status	59	59
Impaired financing receivable, unpaid principal balance	44	44
Impaired financing receivable, average recorded investment	59	58
Total loans
Unsecured Financing Receivables
Gross loan balance (principal and interest)	73	72
Related allowance	(59)	(59)
Net financing receivables	14	13
Gross receivables on non-accrual status	59	59
Other financing arrangements
Unsecured Financing Receivables
Gross loan balance (principal and interest)	55	55
Related allowance	(50)	(49)
Net financing receivables	5	6
Gross receivables on non-accrual status	$ 50	$ 49

Financing Receivables - Narrati

Financing Receivables - Narrative (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Significant unobservable inputs (level three)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation
Level three financing receivables	$ 19	$ 20

Acquisitions and Dispositions -

Acquisitions and Dispositions - Acquisitions Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Business Acquisition
Cash consideration transferred	$ 0	$ 245
Proceeds from redeemable noncontrolling interest in preferred shares in a subsidiary	0	9
Payments for repurchase of redeemable preferred stock	10	0
Miraval Group
Business Acquisition
Cash consideration transferred		237
Working capital adjustments		2
Proceeds from redeemable noncontrolling interest in preferred shares in a subsidiary		$ 9
Redeemable preferred shares, preferred return		12.00%
Payments for repurchase of redeemable preferred stock	$ 10
Cranwell Spa and Golf Resort
Business Acquisition
Business acquisition, percentage acquired		95.00%

Acquisitions and Dispositions63

Acquisitions and Dispositions - Schedule of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Business Acquisition
Goodwill	$ 154		$ 150
Other definite-lived intangibles
Business Acquisition
Weighted-average useful life	11 years
Miraval Group
Business Acquisition
Current assets, net of cash acquired		$ 1
Property and equipment		172
Indefinite-lived intangibles		37
Goodwill		21
Total assets		252
Current liabilities		13
Deferred tax liabilities		3
Total liabilities		16
Total net assets acquired attributable to Hyatt Hotels Corporation		236
Total net assets acquired attributable to noncontrolling interests		1
Total net assets acquired		237
Goodwill expected tax deductible amount		10
Miraval Group | Management Agreement
Business Acquisition
Definite-lived intangibles		$ 14
Weighted-average useful life		20 years
Miraval Group | Other definite-lived intangibles
Business Acquisition
Definite-lived intangibles		$ 7
Miraval Group | Other definite-lived intangibles | Minimum
Business Acquisition
Weighted-average useful life		2 years
Miraval Group | Other definite-lived intangibles | Maximum
Business Acquisition
Weighted-average useful life		7 years

Acquisitions and Dispositions64

Acquisitions and Dispositions - Dispositions Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sales of real estate, net of cash disposed	$ 992	$ 0
Gains (losses) on sales of real estate	$ 529	0
Like-kind exchange period for replacement property identified	45 days
Grand Hyatt San Francisco, Andaz Maui at Wailea Resort, and Hyatt Regency Coconut Point Resort & Spa | Disposal group, disposed of by sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sales of real estate, net of cash disposed	$ 992
Gains (losses) on sales of real estate	529
Pre-tax net income	15	$ 10
Hyatt Regency Coconut Point Resort & Spa | Disposal group, disposed of by sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds held as restricted for use	$ 221
Hyatt Regency Scottsdale Resort & Spa at Gainey Ranch | Disposal group, disposed of by sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Real Estate Sale Proceeds Held As Restricted Cash In Investing Activities			$ 207

Intangibles, Net - Schedule of

Intangibles, Net - Schedule of Intangible Assets (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Schedule of Intangible Asset by Major Class
Intangible assets, gross	$ 381		$ 376
Accumulated amortization	(76)		(71)
Intangibles, net	305	$ 305	305
Brand and other indefinite-lived intangibles
Schedule of Intangible Asset by Major Class
Intangible assets, gross	53		53
Management and franchise agreement intangibles
Schedule of Intangible Asset by Major Class
Intangible assets, gross	$ 179		178
Weighted- average useful lives in years	23 years
Lease related intangibles
Schedule of Intangible Asset by Major Class
Intangible assets, gross	$ 131		127
Weighted- average useful lives in years	110 years
Advanced bookings intangibles
Schedule of Intangible Asset by Major Class
Intangible assets, gross	$ 9		9
Weighted- average useful lives in years	6 years
Other definite-lived intangibles
Schedule of Intangible Asset by Major Class
Intangible assets, gross	$ 9		$ 9
Weighted- average useful lives in years	11 years

Intangibles, Net - Amortization

Intangibles, Net - Amortization Expense Table (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense	$ 3	$ 3

Other Assets (Details)

Other Assets (Details) - USD ($) $ in Millions	Mar. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Other Assets, Noncurrent [Abstract]
Marketable securities held to fund rabbi trusts	$ 409		$ 402
Management and franchise agreement assets constituting payments to customers	390		378
Loyalty program marketable securities	297		298
Common shares of Playa N.V.	124		131
Long-term investments	129		109
Other	70		66
Total other assets	$ 1,419	$ 1,406	$ 1,384

Debt - Narrative (Details)

Debt - Narrative (Details) - USD ($)	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Debt Instrument
Long-term debt, net of current maturities	$ 1,439,000,000	$ 1,440,000,000
Revolving credit facility
Debt Instrument
Proceeds from revolving credit facility during period	20,000,000
Repayments of revolving credit facility	$ 20,000,000
Revolving credit facility, weighted average interest rate	4.85%
Line of credit outstanding	$ 0	$ 0
Revolving credit facility, remaining borrowing capacity	1,500,000,000
Line of Credit | Revolving credit facility
Debt Instrument
Line of credit facility	$ 1,500,000,000

Debt - Fair Value (Details)

Debt - Fair Value (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Debt Instrument
Capital lease obligations	$ 13	$ 13
Unamortized discount and deferred financing fees	14	14
Quoted prices in active markets for identical assets (level one)
Debt Instrument
Debt, excluding capital lease obligations and unamortized discounts and deferred financing fees, fair value	0	0
Significant other observable inputs (level two)
Debt Instrument
Debt, excluding capital lease obligations and unamortized discounts and deferred financing fees, fair value	1,426	1,459
Significant unobservable inputs (level three)
Debt Instrument
Debt, excluding capital lease obligations and unamortized discounts and deferred financing fees, fair value	84	87
Carrying value
Debt Instrument
Debt, excluding capital lease obligations and unamortized discounts and deferred financing fees, fair value	1,451	1,452
Fair value
Debt Instrument
Debt, excluding capital lease obligations and unamortized discounts and deferred financing fees, fair value	1,510	$ 1,546
2019 Notes | Senior Notes
Debt Instrument
Long-term debt, fair value	$ 196
Debt instrument, stated percent	6.875%
2021 Notes | Senior Notes
Debt Instrument
Long-term debt, fair value	$ 250
Debt instrument, stated percent	5.375%
2023 Notes | Senior Notes
Debt Instrument
Long-term debt, fair value	$ 350
Debt instrument, stated percent	3.375%
2026 Notes | Senior Notes
Debt Instrument
Long-term debt, fair value	$ 400
Debt instrument, stated percent	4.85%

Other Long-Term Liabilities (De

Other Long-Term Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Other Liabilities [Abstract]
Deferred compensation plans held to fund rabbi trusts (Note 4)	$ 409		$ 402
Guarantee liabilities (Note 12)	99		104
Self-insurance liabilities (Note 12)	73		69
Deferred income taxes	64		62
Other	227		226
Total other long-term liabilities	$ 872	$ 863	$ 863

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Tax Credit Carryforward [Line Items]
Effective income tax rate	26.70%	37.90%
Reversal of deferred tax expense	$ 10	$ 16
Total unrecognized tax benefits	94		$ 94
Amount of unrecognized tax benefits that would affect the tax rate if recognized	34		33
Settlement with Taxing Authority
Tax Credit Carryforward [Line Items]
Amount of unrecognized tax benefits that would affect the tax rate if recognized	63
Estimated income tax liability based on taxing authority’s assessment	127
Estimated interest, net of federal tax benefit, included in taxing authority assessment	$ 31
Restatement Adjustment | Accounting Standards Update 2014-09
Tax Credit Carryforward [Line Items]
Reversal of deferred tax expense			$ 52

Commitments and Contingencies -

Commitments and Contingencies - Commitments and Performance Guarantees Narrative (Details) € in Millions	3 Months Ended
	Mar. 31, 2018USD ($)hotel	Mar. 31, 2018EUR (€)hotel	Dec. 31, 2017USD ($)	Mar. 31, 2017USD ($)	Dec. 31, 2016USD ($)
Loss Contingencies
Commitment to loan or investment	$ 445,000,000
Performance guarantee
Loss Contingencies
Remaining maximum exposure	329,000,000
Guarantor obligations, liability (asset), current carrying value	72,000,000		$ 71,000,000	$ 77,000,000	$ 79,000,000
Performance guarantee | Other long-term liabilities
Loss Contingencies
Guarantor obligations, liability (asset), current carrying value	41,000,000		45,000,000
Performance guarantee | Accrued expenses and other current liabilitiess
Loss Contingencies
Guarantor obligations, liability (asset), current carrying value	32,000,000		26,000,000
Performance guarantee | Receivables
Loss Contingencies
Guarantor obligations, liability (asset), current carrying value	1,000,000		0
Performance test clause guarantee
Loss Contingencies
Guarantor obligations, liability (asset), current carrying value	$ 0		0
The four managed hotels in France | Performance guarantee
Loss Contingencies
Hotels managed In France | hotel	4	4
Performance guarantee term	7 years
Remaining performance guarantee term	2 years 3 months
Remaining maximum exposure	$ 276,000,000	€ 224
Guarantor obligations, liability (asset), current carrying value	$ 60,000,000		$ 58,000,000	$ 69,000,000	$ 66,000,000

Commitments and Contingencies73

Commitments and Contingencies - Schedule of Guarantor Obligations (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Guarantor Obligations
Amortization of initial guarantee obligation liability into income	$ (5)	$ (4)
Performance guarantee expense, net	28	26
Performance guarantee
Guarantor Obligations
Beginning balance	71	79
Amortization of initial guarantee obligation liability into income	(5)	(4)
Performance guarantee expense, net	28	26
Net (payments) receipts during the period	(24)	(26)
Foreign currency exchange, net	2	2
Ending balance	72	77
Performance guarantee | The four managed hotels in France
Guarantor Obligations
Beginning balance	58	66
Amortization of initial guarantee obligation liability into income	(4)	(3)
Performance guarantee expense, net	27	26
Net (payments) receipts during the period	(23)	(22)
Foreign currency exchange, net	2	2
Ending balance	60	69
Performance guarantee | Other performance guarantees
Guarantor Obligations
Beginning balance	13	13
Amortization of initial guarantee obligation liability into income	(1)	(1)
Performance guarantee expense, net	1	0
Net (payments) receipts during the period	(1)	(4)
Foreign currency exchange, net	0	0
Ending balance	$ 12	$ 8

Commitments and Contingencies74

Commitments and Contingencies - Schedule of Debt Guarantees (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Loss Contingencies
Debt repayment and other guarantees, other long-term liabilities	$ 99	$ 104
Debt repayment and other guarantees
Loss Contingencies
Debt repayment and other guarantees, maximum potential future payments	715
Debt repayment and other guarantees, maximum exposure net of recoverability from third parties	388
Debt repayment and other guarantees, other long-term liabilities	58	59
Debt repayment and other guarantees | Hotel property in Washington State
Loss Contingencies
Debt repayment and other guarantees, maximum potential future payments	215
Debt repayment and other guarantees, maximum exposure net of recoverability from third parties	0
Debt repayment and other guarantees, other long-term liabilities	24	26
Debt repayment and other guarantees | Hotel properties in India
Loss Contingencies
Debt repayment and other guarantees, maximum potential future payments	184
Debt repayment and other guarantees, maximum exposure net of recoverability from third parties	184
Debt repayment and other guarantees, other long-term liabilities	15	17
Debt repayment and other guarantees | Hotel property in Massachusetts
Loss Contingencies
Debt repayment and other guarantees, maximum potential future payments	107
Debt repayment and other guarantees, maximum exposure net of recoverability from third parties	107
Debt repayment and other guarantees, other long-term liabilities	1	1
Debt repayment and other guarantees | Hotel and residential properties in Brazil
Loss Contingencies
Debt repayment and other guarantees, maximum potential future payments	98
Debt repayment and other guarantees, maximum exposure net of recoverability from third parties	40
Debt repayment and other guarantees, other long-term liabilities	4	4
Debt repayment and other guarantees | Hotel properties in California
Loss Contingencies
Debt repayment and other guarantees, maximum potential future payments	31
Debt repayment and other guarantees, maximum exposure net of recoverability from third parties	13
Debt repayment and other guarantees, other long-term liabilities	5	6
Debt repayment and other guarantees | Hotel property in Minnesota
Loss Contingencies
Debt repayment and other guarantees, maximum potential future payments	25
Debt repayment and other guarantees, maximum exposure net of recoverability from third parties	25
Debt repayment and other guarantees, other long-term liabilities	2	2
Debt repayment and other guarantees | Hotel property in Arizona
Loss Contingencies
Debt repayment and other guarantees, maximum potential future payments	25
Debt repayment and other guarantees, maximum exposure net of recoverability from third parties	0
Debt repayment and other guarantees, other long-term liabilities	1	1
Debt repayment and other guarantees | Other
Loss Contingencies
Debt repayment and other guarantees, maximum potential future payments	30
Debt repayment and other guarantees, maximum exposure net of recoverability from third parties	19
Debt repayment and other guarantees, other long-term liabilities	6	$ 2
Debt repayment and other guarantees | Joint venture | Hotel properties in India
Loss Contingencies
Debt repayment and other guarantees, maximum exposure net of recoverability from third parties	$ 92
Debt repayment and other guarantees, equity method investment, ownership percentage	50.00%

Commitments and Contingencies75

Commitments and Contingencies - Guarantee Liabilities Fair Value Narrative (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Guarantees, fair value disclosure	$ 190	$ 177

Commitments and Contingencies76

Commitments and Contingencies - Insurance, Collective Bargaining Agreements, Surety Bonds, and Letters of Credit, and Other Narrative (Details) - USD ($) $ in Millions	Apr. 18, 2018	Mar. 31, 2018	Dec. 31, 2017
Loss Contingencies
Self insurance reserve, current		$ 33	$ 32
Self-insurance liabilities (Note 12)		73	$ 69
Surety bonds		$ 25
Maximum | Subsequent event
Loss Contingencies
Maximum exposure of possible loss	$ 17
United States
Loss Contingencies
Multiemployer plans, collective-bargaining arrangement, percentage of participants		25.00%
Letter of credit
Loss Contingencies
Letters of credit outstanding, amount		$ 307
Letter of credit | Self insurance collateral
Loss Contingencies
Letters of credit outstanding, amount		$ 9

Equity - Schedule of Stockholde

Equity - Schedule of Stockholders' Equity and Noncontrolling Interests (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Jan. 01, 2018	Dec. 31, 2017
Equity Roll Forward
Beginning balance, adjusted				$ 3,839
Beginning balance	$ 3,843	$ 4,080
Net income attributable to Hyatt Hotels Corporation	411	55
Other comprehensive income	23	75
Contributions from noncontrolling interests		1
Repurchase of common stock	(75)	(348)
Dividends	(18)
Employee stock plan issuance	1	1
Share-based payment activity	13	13
Ending balance	4,194	3,877
Retained earnings	3,511		$ 3,118	3,054
Accounting Standards Update 2014-09 | Restatement Adjustment
Equity Roll Forward
Beginning balance	312
Net income attributable to Hyatt Hotels Corporation		(15)
Retained earnings			$ 172	312
Stockholders' equity
Equity Roll Forward
Beginning balance, adjusted				3,833
Beginning balance		4,075
Net income attributable to Hyatt Hotels Corporation	411	55
Other comprehensive income	23	75
Contributions from noncontrolling interests		0
Repurchase of common stock	(75)	(348)
Dividends	(18)
Employee stock plan issuance	1	1
Share-based payment activity	13	13
Ending balance	4,188	3,871
Noncontrolling interests in consolidated subsidiaries
Equity Roll Forward
Beginning balance, adjusted				$ 6
Beginning balance		5
Net income attributable to Hyatt Hotels Corporation	0	0
Other comprehensive income	0	0
Contributions from noncontrolling interests		1
Repurchase of common stock	0	0
Dividends	0
Employee stock plan issuance	0	0
Share-based payment activity	0	0
Ending balance	$ 6	$ 6

Equity - Accumulated Other Comp

Equity - Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Total Equity
Beginning balance	$ 3,843	$ 4,080
Beginning balance, adjusted			$ 3,839
Ending balance	4,194	3,877
Foreign currency translation adjustments
Total Equity
Beginning balance		(299)
Beginning balance, adjusted			(243)
Current period other comprehensive income (loss) before reclassification	23	41
Amount reclassified from accumulated other comprehensive loss	0	0
Ending balance	(220)	(258)
Unrealized gains on AFS securities
Total Equity
Beginning balance		33
Current period other comprehensive income (loss) before reclassification		34
Amount reclassified from accumulated other comprehensive loss		0
Ending balance		67
Unrecognized pension cost
Total Equity
Beginning balance		(7)
Beginning balance, adjusted			(7)
Current period other comprehensive income (loss) before reclassification	0	0
Amount reclassified from accumulated other comprehensive loss	0	0
Ending balance	(7)	(7)
Unrealized losses on derivative instruments
Total Equity
Beginning balance		(4)
Beginning balance, adjusted			(3)
Current period other comprehensive income (loss) before reclassification	0	0
Amount reclassified from accumulated other comprehensive loss	0	0
Ending balance	(3)	(4)
Accumulated other comprehensive income (loss)
Total Equity
Beginning balance		(277)
Beginning balance, adjusted			$ (253)
Current period other comprehensive income (loss) before reclassification	23	75
Amount reclassified from accumulated other comprehensive loss	0	0
Ending balance	$ (230)	$ (202)

Equity - Narrative (Details)

Equity - Narrative (Details) - USD ($)	Feb. 14, 2018	Nov. 30, 2017	Mar. 31, 2017	Mar. 31, 2018	Sep. 30, 2017	Mar. 31, 2017	Dec. 31, 2017	Dec. 31, 2016
Share Repurchase
Stock repurchase program, authorized amount							$ 1,250,000,000	$ 500,000,000
Stock repurchased and retired during period (in shares)				1,209,987		5,480,636
Stock repurchased and retired during period				$ 95,000,000		$ 288,000,000
Percent of stock outstanding repurchased during period				1.00%		4.00%
Stock repurchase program, remaining authorized repurchase amount				$ 788,000,000
Stock repurchased and retired during period				$ 75,000,000		$ 348,000,000
Cash dividend declared (in dollars per share)				$ 0.15		$ 0
Cash dividend paid (in dollars per share)	$ 0.15
Weighted Average
Share Repurchase
Stock repurchased and retired during period (in dollars per share)				$ 76.89		$ 52.48
March 2017 ASR
Share Repurchase
Stock repurchased and retired during period (in shares)			4,596,822		796,847
Payment for shares repurchased under ASR agreement			$ (300,000,000)			$ (300,000,000)
Stock repurchase program, remaining authorized repurchase amount			$ 60,000,000			$ 60,000,000
March 2017 ASR | Weighted Average
Share Repurchase
Stock repurchased and retired during period (in dollars per share)			$ 52.21
November 2017 ASR
Share Repurchase
Stock repurchased and retired during period (in shares)				244,260
Stock repurchased and retired during period		$ 20,000,000

Stock-Based Compensation - Comp

Stock-Based Compensation - Compensation Expense Related to Long-Term Incentive Plan (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award
Compensation expense	$ 18	$ 16
SARs
Share-based Compensation Arrangement by Share-based Payment Award
Compensation expense	8	8
RSUs
Share-based Compensation Arrangement by Share-based Payment Award
Compensation expense	9	8
PSUs
Share-based Compensation Arrangement by Share-based Payment Award
Compensation expense	$ 1	$ 0

Stock-Based Compensation - Narr

Stock-Based Compensation - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
SARs and RSUs
Share-based Compensation Arrangement by Share-based Payment Award
Amortization period, deferred compensation expense	3 years
Stock Appreciation Rights (SARS)
Share-based Compensation Arrangement by Share-based Payment Award
Grants in period (in shares)	465,842	605,601
Grants in period, weighted-average fair value at grant date (in dollars per share)	$ 21.13	$ 16.35
Total unearned compensation	$ 5
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award
Grants in period (in shares)	258,085	416,215
Grants in period, weighted-average fair value at grant date (in dollars per share)	$ 80	$ 52.65
Total unearned compensation	$ 21
Performance Shares (PSUs and PSSs)
Share-based Compensation Arrangement by Share-based Payment Award
Total unearned compensation	$ 10
Amortization period, deferred compensation expense	2 years
Performance Shares (PSUs and PSSs) | Performance Share Units (PSUs)
Share-based Compensation Arrangement by Share-based Payment Award
Grants in period (in shares)	89,441	102,115
Grants in period, weighted-average fair value at grant date (in dollars per share)	$ 82.10	$ 52.65
Performance period	3 years

Related-Party Transactions - Le

Related-Party Transactions - Legal Services (Details) - Family member of management - Related party legal services - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Related Party Transaction
Legal services	$ 1	$ 0
Due (to) from related parties	$ (1)		$ 0

Related-Party Transactions - Eq

Related-Party Transactions - Equity Method Investments (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Related Party Transaction
Management, franchise, and other fees	$ 132	$ 114
Minimum
Related Party Transaction
Equity method investment, ownership percentage	24.00%
Maximum
Related Party Transaction
Equity method investment, ownership percentage	72.00%
Equity method investee
Related Party Transaction
Management, franchise, and other fees	$ 4	6
Due (to) from related parties	11		$ 11
Guarantee fees	$ 1	$ 1

Related-Party Transactions - Sh

Related-Party Transactions - Share Conversion (Details) - $ / shares	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Common Class B
Related Party Transaction
Conversion of stock, shares converted (in shares)	257,194	539,370
Common stock, par value per share (in dollars per share)	$ 0.01		$ 0.01
Common Class A
Related Party Transaction
Common stock, par value per share (in dollars per share)	$ 0.01		$ 0.01

Segment Information - Summarize

Segment Information - Summarized Consolidated Financial Information by Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Segment Reporting Information
Owned and leased hotels revenues	$ 515	$ 569
Other revenues	11	17
Revenues	1,109	1,126
Adjusted EBITDA	202	218
Depreciation and amortization	83	87
Management, franchise, and other fee revenues	132	114
Contra revenue	(5)	(4)
Revenues for the reimbursement of costs incurred on behalf of managed and franchised properties	456	430
Operating segments | Owned and leased hotels
Segment Reporting Information
Owned and leased hotels revenues	507	562
Other revenues	0	13
Adjusted EBITDA	113	142
Depreciation and amortization	68	74
Operating segments | Americas management and franchising
Segment Reporting Information
Adjusted EBITDA	87	76
Depreciation and amortization	4	2
Management, franchise, and other fee revenues	98	90
Contra revenue	(3)	(3)
Revenues for the reimbursement of costs incurred on behalf of managed and franchised properties	420	401
Operating segments | ASPAC management and franchising
Segment Reporting Information
Adjusted EBITDA	18	15
Depreciation and amortization	0	0
Management, franchise, and other fee revenues	30	25
Contra revenue	(1)	0
Revenues for the reimbursement of costs incurred on behalf of managed and franchised properties	20	17
Operating segments | EAME/SW Asia management and franchising
Segment Reporting Information
Adjusted EBITDA	10	8
Depreciation and amortization	0	0
Management, franchise, and other fee revenues	18	16
Contra revenue	(1)	(1)
Revenues for the reimbursement of costs incurred on behalf of managed and franchised properties	16	12
Eliminations
Segment Reporting Information
Revenues	(27)	(28)
Adjusted EBITDA	3	5
Eliminations | Owned and leased hotels
Segment Reporting Information
Revenues	9	9
Eliminations | Americas management and franchising
Segment Reporting Information
Revenues	18	19
Eliminations | ASPAC management and franchising
Segment Reporting Information
Revenues	0	0
Eliminations | EAME/SW Asia management and franchising
Segment Reporting Information
Revenues	2	2
Eliminations | Corporate and other
Segment Reporting Information
Revenues	(2)	(2)
Corporate and other
Segment Reporting Information
Adjusted EBITDA	(29)	(28)
Depreciation and amortization	11	11
Corporate and other segment revenues	$ 32	$ 22

Segment Information - Reconcili

Segment Information - Reconciliation of Net Income attributable to Hyatt Hotels Corporation to EBITDA and a Reconciliation of EBITDA to Consolidated Adjusted EBITDA (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Segment Reporting [Abstract]
NET INCOME ATTRIBUTABLE TO HYATT HOTELS CORPORATION	$ 411	$ 55
Interest expense	19	21
Provision for income taxes	150	34
Depreciation and amortization	83	87
EBITDA	663	197
Contra revenue	5	4
Revenues for the reimbursement of costs incurred on behalf of managed and franchised properties	(456)	(430)
Costs incurred on behalf of managed and franchised properties	460	445
Equity losses from unconsolidated hospitality ventures	13	3
Stock-based compensation expense	18	16
Gains on sales of real estate	(529)	0
Other (income) loss, net	18	(43)
Pro rata share of unconsolidated hospitality ventures Adjusted EBITDA	10	26
Adjusted EBITDA	$ 202	$ 218

Earnings Per Share - Schedule o

Earnings Per Share - Schedule of the Calculation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Numerator:
Net income	$ 411	$ 55
Net income and accretion attributable to noncontrolling interests	0	0
NET INCOME ATTRIBUTABLE TO HYATT HOTELS CORPORATION	$ 411	$ 55
Denominator:
Basic weighted average shares outstanding (in shares)	118,652,054	129,746,644
Share-based compensation (in shares)	2,126,296	1,250,891
Diluted weighted average shares outstanding (in shares)	120,778,350	130,997,535
Basic Earnings Per Share:
Net income—Basic (in dollars per share)	$ 3.47	$ 0.43
Net income and accretion attributable to noncontrolling interests - Basic (in dollars per share)	0	0
Net income attributable to Hyatt Hotels Corporation—Basic (in dollars per share)	3.47	0.43
Diluted Earnings Per Share:
Net income—Diluted (in dollars per share)	3.40	0.42
Net income and accretion attributable to noncontrolling interests - Diluted (in dollars per share)	0	0
Net income attributable to Hyatt Hotels Corporation—Diluted (in dollars per share)	$ 3.40	$ 0.42

Earnings Per Share - Anti-dilut

Earnings Per Share - Anti-dilutive Shares Issued (Details) - shares	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Stock Appreciation Rights (SARS)
Antidilutive Securities Excluded from Computation of Earnings Per Share
Antidilutive securities excluded from computation of earnings per share (in shares)	0	39,200
Restricted Stock Units (RSUs)
Antidilutive Securities Excluded from Computation of Earnings Per Share
Antidilutive securities excluded from computation of earnings per share (in shares)	200	0
Equity-classified forward contract under the March 2017 ASR
Antidilutive Securities Excluded from Computation of Earnings Per Share
Antidilutive securities excluded from computation of earnings per share (in shares)	0	26,800

Other Income (Loss), Net (Detai

Other Income (Loss), Net (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Other Income and Expenses [Abstract]
Interest income	$ 5	$ 97
Depreciation recovery	5	6
Performance guarantee liability amortization (Note 12)	5	4
Debt repayment guarantee liability amortization (Note 12)	3	3
Pre-condemnation income	2	0
Realized losses (Note 4)	(1)	(41)
Unrealized (losses) gains (Note 4)	12
Unrealized (losses) gains (Note 4)		1
Performance guarantee expense, net (Note 12)	(28)	(26)
Other, net	3	(1)
Other income (loss), net	$ (18)	$ 43