Hilton Worldwide (HLT) 10-Q 1 May 19 2019 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information Document - shares	3 Months Ended
	Mar. 31, 2019	Apr. 24, 2019
Entity Information [Line Items]
Entity Registrant Name	Hilton Worldwide Holdings Inc.
Entity Central Index Key	0001585689
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Document Type	10-Q
Document Period End Date	Mar. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1
Amendment Flag	false
Trading Symbol	hlt
Entity Common Stock, Shares Outstanding		291,062,641

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Current Assets:
Cash and cash equivalents	$ 382	$ 403
Restricted cash and cash equivalents	79	81
Accounts receivable, net of allowance for doubtful accounts	1,102	1,150
Prepaid expenses	140	160
Other	173	189
Total current assets	1,876	1,983
Intangibles and Other Assets:
Goodwill	5,162	5,160
Brands	4,872	4,869
Management and franchise contracts, net	841	872
Other intangible assets, net	408	415
Operating lease right-of-use assets	916	0
Property and equipment, net	412	367
Deferred income tax assets	146	90
Other	220	239
Total intangibles and other assets	12,977	12,012
Total assets	14,853	13,995
Current Liabilities:
Accounts payable, accrued expenses and other	1,679	1,549
Current maturities of long-term debt	35	16
Current portion of deferred revenues	323	350
Total current liabilities	2,794	2,615
Long-term debt	7,330	7,266
Operating lease liabilities	1,103	0
Deferred revenues	830	826
Deferred income tax liabilities	850	898
Other	851	863
Total liabilities	14,745	13,437
Commitments and Contingencies
Equity:
Preferred stock	0	0
Common stock	3	3
Treasury stock, at cost	(2,921)	(2,625)
Additional paid-in capital	10,374	10,372
Accumulated deficit	(6,558)	(6,417)
Accumulated other comprehensive loss	(798)	(782)
Total Hilton stockholders' equity	100	551
Noncontrolling interests	8	7
Total equity	108	558
Total liabilities and equity	14,853	13,995
Guest Loyalty Program [Member]
Current Liabilities:
Current portion of liability for guest loyalty program	757	700
Liability for guest loyalty program	$ 987	$ 969

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Allowance for doubtful accounts	$ 43	$ 42
Variable interest entities - current assets	84	90
Variable interest entities - non-current assets	179	178
Variable interest entities - current liabilities	55	56
Variable interest entities - total liabilities	$ 257	$ 263
Preferred stock, par value (per share)	$ 0.01	$ 0.01
Preferred stock, authorized shares	3,000,000,000	3,000,000,000
Preferred stock, issued shares	0	0
Preferred stock, outstanding shares	0	0
Common stock, par value (per share)	$ 0.01	$ 0.01
Common stock, authorized shares	10,000,000,000	10,000,000,000
Common stock, issued shares	332,869,893	332,105,163
Common stock, outstanding shares	291,720,450	294,815,890
Treasury stock, shares	41,149,443	37,289,273

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations Statement - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Revenues	$ 2,204	$ 2,074
Depreciation and amortization	84	82
General and administrative	107	104
Other expenses	20	14
Total expenses excluding reimbursable expenses	509	520
Total expenses	1,892	1,795
Operating income	312	279
Interest expense	(98)	(83)
Gain on foreign currency transactions	0	11
Other non-operating income, net	4	14
Income before income taxes	218	221
Income tax expense	(59)	(58)
Net income	159	163
Net income attributable to noncontrolling interests	(1)	(2)
Net income attributable to Hilton stockholders	$ 158	$ 161
Earnings per share, basic
Basic EPS	$ 0.54	$ 0.51
Earnings per share, diluted
Diluted EPS	0.54	0.51
Cash dividends declared per share	$ 0.15	$ 0.15
Franchise and licensing fees [member]
Revenues	$ 382	$ 331
Base and other management fees [member]
Revenues	80	77
Incentive management fees [member]
Revenues	55	55
Owned and leased hotels [member]
Revenues	312	334
Expenses	298	320
Other revenues [member]
Revenues	26	23
Total revenues excluding reimbursable revenues [member]
Revenues	855	820
Other revenues from managed and franchised properties [member]
Revenues	1,349	1,254
Other expenses from managed and franchised properties [member]
Expenses	$ 1,383	$ 1,275

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 159	$ 163
Other comprehensive income (loss), net of tax:
Currency translation adjustment	(3)	32
Pension liability adjustment	2	1
Cash flow hedge adjustment	(15)	28
Total other comprehensive income (loss)	(16)	61
Comprehensive income	143	224
Comprehensive income attributable to noncontrolling interests	(1)	(2)
Comprehensive income attributable to Hilton stockholders	$ 142	$ 222

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Comprehensive Income (Parentheticals) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement of Comprehensive Income [Abstract]
Currency translation adjustment, tax benefit (expense)	$ (8)	$ 1
Pension liability adjustment, tax expense	(1)	0
Cash flow hedge adjustment, tax benefit (expense)	$ 5	$ (10)

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Operating Activities:
Net income	$ 159	$ 163
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization of contract acquisition costs	7	7
Depreciation and amortization	84	82
Gain on foreign currency transactions	0	(11)
Share-based compensation	34	28
Deferred income taxes	(26)	(37)
Contract acquisition costs	(15)	(14)
Working capital changes and other	121	25
Net cash provided by operating activities	364	243
Investing Activities:
Capital expenditures for property and equipment	(23)	(10)
Capitalized software costs	(19)	(15)
Other	(2)	(1)
Net cash used in investing activities	(44)	(26)
Financing Activities:
Borrowings	375	0
Repayment of debt	(336)	(14)
Dividends paid	(44)	(47)
Repurchases of common stock	(296)	(110)
Tax withholdings on share-based compensation	(42)	(40)
Net cash used in financing activities	(343)	(211)
Effect of exchange rate changes on cash, restricted cash and cash equivalents	0	7
Net increase (decrease) in cash, restricted cash and cash equivalents	(23)	13
Cash, restricted cash and cash equivalents, beginning of period	484	670
Cash, restricted cash and cash equivalents, end of period	461	683
Supplemental Disclosures:
Interest	71	72
Income taxes, net of refunds	$ 13	$ 9

Organization

Organization	3 Months Ended
	Mar. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization	Organization Hilton Worldwide Holdings Inc. (the "Parent," or together with its subsidiaries, "Hilton," "we," "us," "our" or the "Company"), a Delaware corporation, is one of the largest hospitality companies in the world and is engaged in managing, franchising, owning and leasing hotels and resorts and licensing its brands and intellectual property ("IP"). As of March 31, 2019 , we managed, franchised, owned or leased 5,757 hotels and resorts, including timeshare properties, totaling 923,110 rooms in 113 countries and territories.

Basis of Presentation and Summa

Basis of Presentation and Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2019
Accounting Policies [Abstract]
Basis of Presentation and Significant Accounting Policies	Basis of Presentation and Summary of Significant Accounting Policies Basis of Presentation The accompanying condensed consolidated financial statements for the three months ended March 31, 2019 and 2018 have been prepared in accordance with United States ("U.S.") generally accepted accounting principles ("GAAP") and are unaudited. We have condensed or omitted certain information and footnote disclosures normally included in financial statements presented in accordance with GAAP. Although we believe the disclosures made are adequate to prevent the information presented from being misleading, these financial statements should be read in conjunction with the consolidated financial statements and notes thereto in our Annual Report on Form 10-K for the fiscal year ended December 31, 2018 . Certain prior year amounts in our condensed consolidated balance sheets have been reclassified to conform to current year presentation. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported and, accordingly, ultimate results could differ from those estimates. Additionally, interim results are not necessarily indicative of full year performance. In our opinion, the accompanying condensed consolidated financial statements reflect all adjustments, including normal recurring items, considered necessary for a fair presentation of the interim periods. All material intercompany transactions have been eliminated in consolidation. Summary of Significant Accounting Policies Our significant accounting policies are detailed in Note 2: "Basis of Presentation and Summary of Significant Accounting Policies" in our Annual Report on Form 10-K for the fiscal year ended December 31, 2018 . On January 1, 2019, we adopted the requirements of Accounting Standards Update ("ASU") No. 2016-02 ("ASU 2016-02"), Leases (Topic 842), and the significant accounting policies that changed as a result of the adoption are set forth below. Leases We determine if a contract is or contains a lease at the inception of the contract, and we classify that lease as a finance lease if it meets certain criteria or as an operating lease when it does not. We reassess if a contract is or contains a leasing arrangement upon modification of the contract. For a contract in which we are a lessee that contains fixed payments for both lease and non-lease components, we have elected to account for the components as a single lease component, as permitted. At the commencement date of a lease, we recognize a lease liability for future fixed lease payments and a right-of-use ("ROU") asset representing our right to use the underlying asset during the lease term. The lease liability is initially measured as the present value of the future fixed lease payments that will be made over the lease term. The lease term includes lessee options to extend the lease and periods occurring after a lessee early termination option, only to the extent it is reasonably certain that we will exercise such extension options and not exercise such early termination options, respectively. The future fixed lease payments are discounted using the rate implicit in the lease, if available, or our incremental borrowing rate. Our incremental borrowing rate is estimated on a portfolio basis and incorporates lease term, currency risk, credit risk and an adjustment for collateral. Upon adoption of ASU 2016-02, we elected to use the remaining lease term as of January 1, 2019 in our estimation of the applicable discount rate for leases that were in place at adoption. For the initial measurement of the lease liability for leases commencing after January 1, 2019, we use the discount rate as of the commencement date of the lease, incorporating the entire lease term. Additionally, we elected not to recognize leases with lease terms of 12 months or less at the commencement date in our consolidated balance sheets. Current maturities and long-term portions of operating lease liabilities are classified as accounts payable, accrued expenses and other and operating lease liabilities, respectively, and current maturities and long-term portions of finance lease liabilities are classified as current maturities of long-term debt and long-term debt, respectively, in our consolidated balance sheets. The ROU asset is measured at the amount of the lease liability with adjustments, if applicable, for lease prepayments made prior to or at lease commencement, initial direct costs incurred by us and lease incentives. We evaluate the carrying value of ROU assets if there are indicators of impairment, and we perform the analysis with the review of the recoverability of the related asset group. If the carrying value of the asset group is determined to not be recoverable and is in excess of the estimated fair value, we record an impairment loss in our consolidated statements of operations. ROU assets of operating leases are classified as operating lease right-of-use assets and ROU assets of finance leases are classified as property and equipment, net in our consolidated balance sheets. Our operating leases require: (i) fixed lease payments, or minimum payments, as contractually stated in the lease agreement; (ii) variable lease payments, which, for our hotels, are generally based on a percentage of the underlying asset's revenues or are dependent on changes in an index; or (iii) lease payments equal to the greater of the fixed or variable lease payments. In addition, we may be required to pay some, or all, of the capital costs for furniture, equipment and leasehold improvements in a hotel property that we lease during the term of the lease. For operating leases, lease expense relating to fixed payments is recognized on a straight-line basis over the lease term and lease expense relating to variable payments is expensed as incurred, with amounts recognized in owned and leased hotel expenses and general and administrative expenses in our consolidated statements of operations. For finance leases, the amortization of the asset is recognized over the shorter of the lease term or useful life of the underlying asset within depreciation and amortization expense and other expenses from managed and franchised properties in our consolidated statements of operations. The interest expense related to finance leases, including any variable lease payments, is recognized in interest expense in our consolidated statements of operations. Recently Issued Accounting Pronouncements In August 2018, the Financial Accounting Standards Board ("FASB") issued ASU No. 2018-15 ("ASU 2018-15"), Intangibles – Goodwill and Other – Internal-use Software (Subtopic 350-40): Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract. This ASU aligns guidance for capitalizing implementation costs incurred in a cloud computing arrangement that is a service contract with guidance for capitalizing implementation costs to develop or obtain internal-use software. Capitalized implementation costs will be amortized over the term of the arrangement and presented in the same line item in the statement of operations as the fees associated with the service contract. We elected, as permitted by the standard, to early adopt ASU 2018-05 on a prospective basis as of January 1, 2019. The adoption did not have a material effect on our condensed consolidated financial statements. In February 2016, the FASB issued ASU 2016-02 , which supersedes existing guidance on accounting for leases in Leases (Topic 840) and generally requires all leases, including operating leases, to be recognized in the statement of financial position of lessees as ROU assets and lease liabilities, with certain practical expedients available. Subsequent to ASU 2016-02, the FASB issued related ASUs, including ASU No. 2018-11 ("ASU 2018-11"), Leases (Topic 842): Targeted Improvements, which provides for another transition method in addition to the modified retrospective approach required by ASU 2016-02. This option allows entities to initially apply the new leases standard at the adoption date and recognize a cumulative adjustment to the opening balance of retained earnings in the period of adoption. As described above, we adopted ASU 2016-02 on January 1, 2019 and applied the package of practical expedients included therein, as well as utilized the transition method included in ASU 2018-11. By applying ASU 2016-02 at the adoption date, as opposed to at the beginning of the earliest period presented, the presentation of financial information for periods prior to January 1, 2019 remain unchanged and in accordance with Leases (Topic 840) . On January 1, 2019, we recognized a $256 million cumulative adjustment to accumulated deficit, net of taxes of $81 million related to a decrease to our deferred liability, as a result of the impairment of ROU assets that occurred in periods prior to the adoption date.

Revenues from Contracts with Cu

Revenues from Contracts with Customers	3 Months Ended
	Mar. 31, 2019
Revenue from Contract with Customer [Abstract]
Revenues from Contracts with Customers	Revenues from Contracts with Customers Contract Liabilities The following table summarizes the activity of our contract liabilities, which are classified as a component of current and long-term deferred revenues, during the three months ended March 31, 2019 : (in millions) Balance as of December 31, 2018 $ 1,060 Cash received in advance and not recognized as revenue (1) 106 Revenue recognized (1) (57 ) Other (2) (46 ) Balance as of March 31, 2019 $ 1,063 ____________ (1) Primarily related to Hilton Honors, our guest loyalty program. (2) Primarily the result of changes in estimated transaction prices for our performance obligations related to points issued under Hilton Honors, which had no effect on revenues. We recognized revenues that were previously deferred as contract liabilities of $60 million during the three months ended March 31, 2018 . Performance Obligations As of March 31, 2019 , we had $459 million of deferred revenues related to unsatisfied performance obligations related to Hilton Honors that will be recognized as revenues when the points are redeemed, which we estimate will occur over the next two years . Additionally, we had $604 million of deferred revenues related to application, initiation and licensing fees, which are expected to be recognized as revenues in future periods over the terms of the related contracts.

Consolidated Variable Interest

Consolidated Variable Interest Entities	3 Months Ended
	Mar. 31, 2019
Variable Interest Entity, Primary Beneficiary, Does Not Hold Majority Voting Interest, Disclosures [Abstract]
Consolidated Variable Interest Entities	Consolidated Variable Interest Entities As of March 31, 2019 and December 31, 2018 , we consolidated three variable interest entities ("VIEs"): two entities that lease hotel properties and one management company. We consolidated these VIEs, since we are the primary beneficiaries of them as we have the power to direct the activities that most significantly affect their economic performance. Additionally, we have the obligation to absorb their losses and the right to receive benefits that could be significant to them. The assets of our consolidated VIEs are only available to settle the obligations of the respective entities. Our condensed consolidated balance sheets included the assets and liabilities of these entities, which primarily comprised the following: March 31, December 31, 2019 2018 (in millions) Cash and cash equivalents $ 66 $ 71 Property and equipment, net 69 68 Deferred income tax assets 52 53 Other non-current assets 58 58 Accounts payable, accrued expenses and other 41 41 Long-term debt (1) 201 205 Other long-term liabilities 15 15 ____________ (1) Includes finance lease liabilities of $183 million and $187 million as of March 31, 2019 and December 31, 2018 , respectively. During the three months ended March 31, 2019 and 2018 , we did not provide any financial or other support to any VIEs that we were not previously contractually required to provide.

Amortizing Intangible Assets

Amortizing Intangible Assets	3 Months Ended
	Mar. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Amortizing Intangible Assets	Amortizing Intangible Assets Amortizing intangible assets were as follows: March 31, 2019 Gross Carrying Value Accumulated Amortization Net Carrying Value (in millions) Management and franchise contracts: Management and franchise contracts recorded at Merger (1) $ 2,231 $ (1,917 ) $ 314 Contract acquisition costs 542 (108 ) 434 Development commissions 109 (16 ) 93 $ 2,882 $ (2,041 ) $ 841 Other intangible assets: Leases (1) $ 290 $ (165 ) $ 125 Capitalized software costs 522 (339 ) 183 Hilton Honors (1) 338 (242 ) 96 Other (1) 38 (34 ) 4 $ 1,188 $ (780 ) $ 408 December 31, 2018 Gross Carrying Value Accumulated Amortization Net Carrying Value (in millions) Management and franchise contracts: Management and franchise contracts recorded at Merger (1) $ 2,228 $ (1,873 ) $ 355 Contract acquisition costs 525 (101 ) 424 Development commissions 108 (15 ) 93 $ 2,861 $ (1,989 ) $ 872 Other intangible assets: Leases (1) $ 288 $ (161 ) $ 127 Capitalized software costs 503 (321 ) 182 Hilton Honors (1) 338 (236 ) 102 Other (1) 38 (34 ) 4 $ 1,167 $ (752 ) $ 415 ____________ (1) Represents intangible assets that were initially recorded at their fair value as part of the October 24, 2007 transaction whereby we became a wholly owned subsidiary of affiliates of The Blackstone Group L.P (the "Merger"). Amortization of our amortizing intangible assets was as follows: Three Months Ended March 31, 2019 2018 (in millions) Recognized in depreciation and amortization expense (1) $ 70 $ 69 Recognized as a reduction of franchise and licensing fees and base and other management fees 7 7 ____________ (1) Includes amortization expense of $51 million for the three months ended March 31, 2019 and 2018 associated with assets that were initially recorded at their fair value at the time of the Merger. We estimate future amortization of our amortizing intangible assets as of March 31, 2019 to be as follows: Recognized in Depreciation and Amortization Expense Recognized as a Reduction of Franchise and Licensing Fees and Base and Other Management Fees Year (in millions) 2019 (remaining) $ 212 $ 20 2020 240 25 2021 102 25 2022 71 23 2023 52 22 Thereafter 138 319 $ 815 $ 434

Debt

Debt	3 Months Ended
	Mar. 31, 2019
Debt Disclosure [Abstract]
Debt	Debt Long-term debt balances, including obligations for finance leases, and associated interest rates as of March 31, 2019 , were as follows: March 31, December 31, 2019 2018 (in millions) Senior notes with a rate of 4.250%, due 2024 $ 1,000 $ 1,000 Senior notes with a rate of 4.625%, due 2025 900 900 Senior notes with a rate of 5.125%, due 2026 1,500 1,500 Senior notes with a rate of 4.875%, due 2027 600 600 Senior secured revolving credit facility with a rate of 3.98%, due 2021 50 — Senior secured term loan facility with a rate of 4.24%, due 2023 3,119 3,119 Finance lease liabilities with an average rate of 5.84%, due 2019 to 2030 255 225 Other debt with a rate of 3.08% due 2026 17 17 7,441 7,361 Less: unamortized deferred financing costs and discount (76 ) (79 ) Less: current maturities of long-term debt (1) (35 ) (16 ) $ 7,330 $ 7,266 ____________ (1) Represents current maturities of finance lease liabilities. The 4.250% Senior Notes due 2024 (the "2024 Senior Notes"), the 4.625% Senior Notes due 2025 (the "2025 Senior Notes"), the 5.125% Senior Notes due 2026 (the "2026 Senior Notes") and the 4.875% Senior Notes due 2027 (the "2027 Senior Notes") are guaranteed on a senior unsecured basis by the Parent and substantially all of its direct and indirect wholly owned domestic subsidiaries that are themselves not issuers of the applicable series of senior notes. See Note 15 : " Condensed Consolidating Guarantor Financial Information " for additional information. Our senior secured credit facilities consist of the $1.0 billion senior secured revolving credit facility (the "Revolving Credit Facility") and the senior secured term loan facility (the "Term Loans"). The obligations of our senior secured credit facilities are unconditionally and irrevocably guaranteed by the Parent and substantially all of its direct and indirect wholly owned domestic subsidiaries. As of March 31, 2019 , in addition to the $50 million outstanding under the Revolving Credit Facility, we had $59 million of letters of credit outstanding, resulting in an available borrowing capacity under the Revolving Credit Facility of $891 million . Subsequent to March 31, 2019 , we drew an additional net $125 million under the Revolving Credit Facility. The contractual maturities of our long-term debt as of March 31, 2019 were as follows: Year (in millions) 2019 (remaining) $ 27 2020 32 2021 74 2022 18 2023 3,139 Thereafter 4,151 $ 7,441

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2019
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements We did not elect the fair value measurement option for any of our financial assets or liabilities. The fair values of certain financial instruments and the hierarchy level we used to estimate the fair values are shown below; the fair values of financial instruments not included in these tables are estimated to be equal to their carrying values as of March 31, 2019 and December 31, 2018 : March 31, 2019 Hierarchy Level Carrying Value Level 1 Level 2 Level 3 (in millions) Assets: Cash equivalents $ 20 $ — $ 20 $ — Restricted cash equivalents 17 — 17 — Liabilities: Long-term debt (1) 7,093 4,047 — 3,162 Interest rate swaps 4 — 4 — December 31, 2018 Hierarchy Level Carrying Value Level 1 Level 2 Level 3 (in millions) Assets: Cash equivalents $ 87 $ — $ 87 $ — Restricted cash equivalents 18 — 18 — Interest rate swaps 16 — 16 — Liabilities: Long-term debt (1) 7,040 3,809 — 3,039 ____________ (1) The carrying values include unamortized deferred financing costs and discount. The carrying values and fair values exclude finance lease liabilities and other debt. We measure our interest rate swaps at fair value, which were estimated using a discounted cash flow analysis that reflects the contractual terms of the interest rate swaps, including the period to maturity, and uses observable market-based inputs of similar instruments, including interest rate curves, as applicable. Our interest rate swaps are included in other non-current assets or other long-term liabilities in our condensed consolidated balance sheets depending on the fair value of the derivatives.

Leases

Leases	3 Months Ended
	Mar. 31, 2019
Lessee Disclosure [Abstract]
Leases	Leases We lease hotel properties, land, corporate office space and equipment used at hotels and corporate offices, with our most significant lease liabilities related to hotel properties. As of March 31, 2019, we leased 53 hotels under operating leases and six hotels under finance leases, two of which were the liabilities of consolidated VIEs and were non-recourse to us. Our hotel leases expire at various dates, with varying renewal and termination options. Supplemental balance sheet information related to leases as of March 31, 2019 was as follows: (dollars in millions) Operating leases: Operating lease right-of-use assets $ 916 Accounts payable, accrued expenses and other 131 Operating lease liabilities 1,103 Finance leases: Property and equipment, net $ 55 Current maturities of long-term debt 35 Long-term debt 220 Weighted average remaining lease term: Operating leases 13.3 years Finance leases 9.2 years Weighted average discount rate: Operating leases 3.74 % Finance leases 5.84 % The components of lease expense for the three months ended March 31, 2019 were as follows: (in millions) Operating lease expense for fixed payments $ 37 Finance lease expense: Amortization of ROU assets 8 Interest on lease liabilities 4 Variable lease expense (1) 19 ____________ (1) Includes amounts related to operating leases and interest payments on finance leases. Lease expense for our operating leases for the year ended December 31, 2018 included $225 million of fixed lease expense and $142 million of variable lease expense. Supplemental cash flow information related to leases for the three months ended March 31, 2019 was as follows: (in millions) Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 48 Financing cash flows from finance leases 11 ROU assets obtained in exchange for lease liabilities in non-cash transactions: Operating leases (1) — Finance leases 42 ____________ (1) Amount is less than $1 million. Our future minimum lease payments as of March 31, 2019 were as follows: Operating Finance Year (in millions) 2019 (remaining) $ 132 $ 38 2020 174 45 2021 160 36 2022 136 29 2023 121 29 Thereafter 889 162 Total minimum lease payments 1,612 339 Less: imputed interest (378 ) (84 ) Total lease liabilities $ 1,234 $ 255

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2019
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes At the end of each quarter, we estimate the effective income tax rate expected to be applied for the full year. The effective income tax rate is determined by the level and composition of income (loss) before income taxes, which is subject to federal, state, local and foreign income taxes. We file income tax returns, including returns for our subsidiaries, with federal, state, local and foreign tax jurisdictions. We are under regular and recurring audit by the IRS and other taxing authorities on open tax positions. The timing of the resolution of tax audits is highly uncertain, as are the amounts, if any, that may ultimately be paid upon such resolution. Changes may result from the conclusion of ongoing audits, appeals or litigation in federal, state, local and foreign tax jurisdictions or from the resolution of various proceedings between the U.S. and foreign tax authorities. We are no longer subject to U.S. federal income tax examination for tax years through 2004. As of March 31, 2019 , we remain subject to federal and state examinations of our income tax returns for tax years from 2005 through 2017 and foreign examinations of our income tax returns for tax years from 1996 through 2018. Our total unrecognized tax benefits as of March 31, 2019 and December 31, 2018 were $320 million and $318 million , respectively. As of March 31, 2019 and December 31, 2018 , we had accrued approximately $42 million and $40 million , respectively, for interest and penalties related to our unrecognized tax benefits in our condensed consolidated balance sheets. Included in the balances of unrecognized tax benefits as of March 31, 2019 and December 31, 2018 was $310 million associated with positions that, if favorably resolved, would provide a benefit to our effective income tax rate. In April 2014, we received 30-day Letters from the Internal Revenue Service ("IRS") and the Revenue Agents Report ("RAR") for the 2006 and October 2007 tax years. We disagreed with several of the proposed adjustments in the RAR, filed a formal appeals protest with the IRS and did not make any tax payments related to this audit. The issues being protested in appeals relate to assertions by the IRS that: (i) certain foreign currency denominated intercompany loans from our foreign subsidiaries to certain U.S. subsidiaries should be recharacterized as equity for U.S. federal income tax purposes and constitute deemed dividends from such foreign subsidiaries to our U.S. subsidiaries; (ii) in calculating the amount of U.S. taxable income resulting from Hilton Honors, we should not reduce gross income by the estimated costs of future redemptions, but rather such costs would be deductible at the time the points are redeemed; and (iii) certain foreign currency denominated loans issued by one of our Luxembourg subsidiaries whose functional currency is the U.S. dollar ("USD"), should instead be treated as issued by one of our Belgian subsidiaries whose functional currency is the euro ("EUR"), and thus foreign currency gains and losses with respect to such loans should have been measured in EUR, instead of USD. In January 2016, we received a 30-day Letter from the IRS and the RAR for the December 2007 through 2010 tax years, which included proposed adjustments that reflect the carryover effect of the three protested issues from 2006 through October 2007. These proposed adjustments are also being protested in appeals and formal appeals protests have been submitted. In April 2016, we requested a Technical Advice Memorandum ("TAM") from the IRS with respect to the treatment of the foreign currency gains and losses on loans issued by our Luxembourg subsidiary. We received a taxpayer favorable TAM in October 2018 and this issue is no longer being pursued by IRS Appeals for any of the open tax years. In September 2018, we received a 30-day Letter from the IRS and the RAR for the 2011 through 2013 tax years, which reflects proposed adjustments for the carryover effect of the two remaining protested issues from 2006 through October 2007. The adjustments for tax years 2011 through 2013 will also be protested in appeals and formal protests have been submitted. After receipt of the TAM relating to the Luxembourg subsidiary, in total, the two remaining proposed adjustments sought by the IRS would result in additional U.S. federal tax owed of approximately $817 million , excluding interest and penalties and potential state income taxes. The portion of this amount related to Hilton Honors would result in a decrease to our future tax liability when the points are redeemed. We disagree with the IRS's position on each of these assertions and intend to vigorously contest them. However, based on continuing appeals process discussions with the IRS, we believe that it is more likely than not that we will not recognize the full benefit related to certain of the issues being appealed. Accordingly, as of March 31, 2019 , we had recorded $54 million of unrecognized tax benefits related to these issues.

Share-Based Compensation

Share-Based Compensation	3 Months Ended
	Mar. 31, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-Based Compensation	Share-Based Compensation We grant time-vesting restricted stock units and restricted stock (collectively, "RSUs"), nonqualified stock options ("options") and performance-vesting restricted stock units and restricted stock (collectively, "performance shares") to our employees and deferred share units ("DSUs") to members of our board of directors. We recognized share-based compensation expense of $34 million and $28 million during the three months ended March 31, 2019 and 2018 , respectively. As of March 31, 2019 , unrecognized compensation costs for unvested awards was approximately $231 million , which are expected to be recognized over a weighted-average period of 2.0 years on a straight-line basis. As of March 31, 2019 , there were 14.2 million shares of common stock available for future issuance under the Hilton 2017 Omnibus Incentive Plan, plus any shares subject to awards outstanding under our 2013 Omnibus Incentive Plan, which will become available for issuance under the Hilton 2017 Omnibus Incentive Plan if such outstanding awards expire or are terminated or are canceled or forfeited. RSUs During the three months ended March 31, 2019 , we granted 0.9 million RSUs with a weighted average grant date fair value per share of $83.10 , which generally vest in equal annual installments over two or three years from the date of grant. Options During the three months ended March 31, 2019 , we granted 0.8 million options with a weighted average exercise price per share of $83.10 , which vest over three years from the date of grant in equal annual installments and terminate 10 years from the date of grant or earlier if the individual’s service terminates under certain circumstances. The weighted average grant date fair value per share of the options granted during the three months ended March 31, 2019 was $21.08 , which was determined using the Black-Scholes-Merton option-pricing model with the following assumptions: Expected volatility (1) 23.51 % Dividend yield (2) 0.81 % Risk-free rate (3) 2.47 % Expected term (in years) (4) 6.0 ____________ (1) Estimated using historical movement of Hilton's stock price. (2) Estimated based on the quarterly dividend and the three-month average stock price at the date of grant. (3) Based on the yields of U.S. Department of Treasury instruments with similar expected lives. (4) Estimated using the average of the vesting periods and the contractual term of the options. As of March 31, 2019 , 1.7 million options were exercisable. Performance Shares During the three months ended March 31, 2019 , we granted 0.4 million performance shares with a weighted average grant date fair value per share of $83.10 . The performance shares are settled at the end of the three-year performance period with: (i) 50 percent of the awards subject to achievement based on the compound annual growth rate ("CAGR") of the Company's adjusted earnings before interest expense, a provision for income taxes and depreciation and amortization ("Adjusted EBITDA") , referred to as EBITDA CAGR and (ii) 50 percent of the awards subject to achievement based on the Company’s free cash flow ("FCF") per share CAGR , referred to as FCF CAGR. The total number of performance shares that vest related to each performance measure is based on an achievement factor that ranges from a zero percent to 200 percent payout, with 100 percent being the target. As of March 31, 2019 , we determined that the performance conditions for the performance shares are probable of achievement and we recognized compensation expense, for both our outstanding EBITDA CAGR and FCF CAGR performance shares, at the maximum achievement percentage for the 2017 grants, between target and maximum for the 2018 grants and at target for the 2019 grants.

Earnings Per Share

Earnings Per Share	3 Months Ended
	Mar. 31, 2019
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share The following table presents the calculation of basic and diluted earnings per share ("EPS"): Three Months Ended March 31, 2019 2018 (in millions, except per share amounts) Basic EPS: Numerator: Net income attributable to Hilton stockholders $ 158 $ 161 Denominator: Weighted average shares outstanding 293 316 Basic EPS $ 0.54 $ 0.51 Diluted EPS: Numerator: Net income attributable to Hilton stockholders $ 158 $ 161 Denominator: Weighted average shares outstanding 295 319 Diluted EPS $ 0.54 $ 0.51 For the three months ended March 31, 2019 and 2018, 1 million and less than 1 million share-based compensation awards, respectively, were excluded from the weighted average shares outstanding used in the computation of diluted EPS because their effect would have been anti-dilutive under the treasury stock method.

Stockholders' Equity and Accumu

Stockholders' Equity and Accumulated Other Comprehensive Loss	3 Months Ended
	Mar. 31, 2019
Stockholders' Equity Note [Abstract]
Stockholders' Equity and Accumulated Other Comprehensive Loss	Stockholders' Equity and Accumulated Other Comprehensive Loss The changes in the components of stockholders' equity were as follows: Equity Attributable to Hilton Stockholders Treasury Stock Additional Accumulated Deficit Accumulated Other Comprehensive Loss Common Stock Noncontrolling Shares Amount Total (in millions) Balance as of December 31, 2018 295 $ 3 $ (2,625 ) $ 10,372 $ (6,417 ) $ (782 ) $ 7 $ 558 Net income — — — — 158 — 1 159 Other comprehensive loss — — — — — (16 ) — (16 ) Dividends — — — — (43 ) — — (43 ) Repurchases of common stock (4 ) — (296 ) — — — — (296 ) Share-based compensation 1 — — 2 — — — 2 Cumulative effect of the adoption of ASU 2016-02 — — — — (256 ) — — (256 ) Balance as of March 31, 2019 292 $ 3 $ (2,921 ) $ 10,374 $ (6,558 ) $ (798 ) $ 8 $ 108 Equity Attributable to Hilton Stockholders Treasury Stock Additional Accumulated Deficit Accumulated Other Comprehensive Loss Common Stock Noncontrolling Interests Shares Amount Total (in millions) Balance as of December 31, 2017 317 $ 3 $ (891 ) $ 10,298 $ (6,981 ) $ (741 ) $ 3 $ 1,691 Net income — — — — 161 — 2 163 Other comprehensive income — — — — — 61 — 61 Dividends — — — — (48 ) — — (48 ) Repurchases of common stock (1 ) — (110 ) — — — — (110 ) Share-based compensation 1 — — (10 ) — — — (10 ) Balance as of March 31, 2018 317 $ 3 $ (1,001 ) $ 10,288 $ (6,868 ) $ (680 ) $ 5 $ 1,747 In February 2019, our board of directors authorized the repurchase of an additional $1.5 billion of our common stock under our existing stock repurchase program. During the three months ended March 31, 2019 , we repurchased 3.9 million shares of common stock. As of March 31, 2019 , approximately $1.8 billion remained available for share repurchases under the program. The changes in the components of accumulated other comprehensive loss, net of taxes, were as follows: Currency Translation Adjustment (1) Pension Liability Adjustment (2) Cash Flow Hedge Adjustment (3) Total (in millions) Balance as of December 31, 2018 $ (545 ) $ (260 ) $ 23 $ (782 ) Other comprehensive loss before reclassifications (3 ) — (13 ) (16 ) Amounts reclassified from accumulated other comprehensive loss — 2 (2 ) — Net current period other comprehensive income (loss) (3 ) 2 (15 ) (16 ) Balance as of March 31, 2019 $ (548 ) $ (258 ) $ 8 $ (798 ) Currency Translation Adjustment (1) Pension Liability Adjustment (2) Cash Flow Hedge Adjustment (3) Total (in millions) Balance as of December 31, 2017 $ (513 ) $ (229 ) $ 1 $ (741 ) Other comprehensive income (loss) before reclassifications 32 (1 ) 24 55 Amounts reclassified from accumulated other comprehensive loss — 2 4 6 Net current period other comprehensive income 32 1 28 61 Balance as of March 31, 2018 $ (481 ) $ (228 ) $ 29 $ (680 ) ____________ (1) Includes net investment hedges and intra-entity foreign currency transactions that are of a long-term investment nature. (2) Amounts reclassified include the amortization of prior service cost and the amortization of net loss that were included in our computation of net periodic pension cost. They were recognized in other non-operating income, net in our condensed consolidated statements of operations and are presented net of a tax benefit of $1 million for the three months ended March 31, 2019 and 2018 . (3) Amounts reclassified relate to designated interest rate swaps, as well as interest rate swaps that were dedesignated and settled. The amounts were recognized in interest expense in our condensed consolidated statements of operations and are presented net of a tax expense of $1 million and a tax benefit of $1 million for the three months ended March 31, 2019 and 2018 , respectively.

Business Segments

Business Segments	3 Months Ended
	Mar. 31, 2019
Segment Reporting [Abstract]
Business Segments	Business Segments We are a hospitality company with operations organized in two distinct operating segments: (i) management and franchise; and (ii) ownership. These segments are managed and reported separately because of their distinct economic characteristics. The management and franchise segment includes all of the hotels we manage for third-party owners, as well as all franchised hotels operated or managed by someone other than us. As of March 31, 2019 , this segment included 689 managed hotels and 4,947 franchised hotels consisting of 893,494 total rooms. This segment also earns licensing fees from Hilton Grand Vacations and co-brand credit card arrangements for the exclusive right to use certain Hilton marks and IP, as well as fees for managing properties in our ownership segment. As of March 31, 2019 , the ownership segment included 68 properties totaling 21,139 rooms, comprising 59 hotels that we wholly owned or leased, one hotel owned by a consolidated non-wholly owned entity, two hotels leased by consolidated VIEs and six hotels owned or leased by unconsolidated affiliates. The performance of our operating segments is evaluated primarily on operating income, without allocating other revenues and expenses or general and administrative expenses. The following table presents revenues for our reportable segments, reconciled to consolidated amounts: Three Months Ended March 31, 2019 2018 (in millions) Franchise and licensing fees $ 385 $ 333 Base and other management fees (1) 92 90 Incentive management fees 55 55 Management and franchise 532 478 Ownership 312 334 Segment revenues 844 812 Amortization of contract acquisition costs (7 ) (7 ) Other revenues 26 23 Direct reimbursements from managed and franchised properties (2) 775 699 Indirect reimbursements from managed and franchised properties (2) 574 555 Intersegment fees elimination (1) (8 ) (8 ) Total revenues $ 2,204 $ 2,074 ____________ (1) Includes management, royalty and IP fees charged to our ownership segment by our management and franchise segment, which were eliminated in our condensed consolidated statements of operations. (2) Included in other revenues from managed and franchised properties in our condensed consolidated statements of operations. The following table presents operating income for our reportable segments, reconciled to consolidated income before income taxes: Three Months Ended March 31, 2019 2018 (in millions) Management and franchise (1) $ 532 $ 478 Ownership (1) 6 6 Segment operating income 538 484 Amortization of contract acquisition costs (7 ) (7 ) Other revenues, less other expenses 6 9 Net other expenses from managed and franchised properties (34 ) (21 ) Depreciation and amortization (84 ) (82 ) General and administrative (107 ) (104 ) Operating income 312 279 Interest expense (98 ) (83 ) Gain on foreign currency transactions — 11 Other non-operating income, net 4 14 Income before income taxes $ 218 $ 221 ____________ (1) Includes management, royalty and IP fees charged to our ownership segment by our management and franchise segment, which were eliminated in our condensed consolidated statements of operations. The following table presents total assets for our reportable segments, reconciled to consolidated amounts: March 31, December 31, 2019 2018 (in millions) Management and franchise $ 11,365 $ 11,362 Ownership 1,737 927 Corporate and other 1,751 1,706 $ 14,853 $ 13,995 The following table presents capital expenditures for property and equipment for our reportable segments, reconciled to consolidated amounts: Three Months Ended March 31, 2019 2018 (in millions) Ownership $ 11 $ 7 Corporate and other 12 3 $ 23 $ 10

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies We provide performance guarantees to certain owners of hotels that we operate under management contracts. Most of these guarantees allow us to terminate the contract, rather than fund shortfalls, if specified operating performance levels are not achieved. However, in limited cases, we are obligated to fund performance shortfalls. As of March 31, 2019 , we had five performance guarantees, with expirations ranging from December 2019 to 2030 , and possible cash outlays totaling approximately $36 million . Our obligations under these guarantees in future periods are dependent on the operating performance level of the related hotel over the remaining term of the performance guarantee. As of March 31, 2019 and December 31, 2018 , we accrued current liabilities of $12 million for one performance guarantee related to a hotel owned by a VIE for which we were not the primary beneficiary. We may enter into new contracts containing performance guarantees in the future, which could increase our possible cash outlays. As of March 31, 2019 , we had a $20 million guarantee for debt of a hotel that we franchise, which has an initial maturity date of February 2022 with two one-year extension options . Although we believe it is unlikely that material payments will be required under this guarantee, there can be no assurance that this will be the case. We do not have any letters of credit pledged as collateral against this guarantee or our performance guarantees. We hold interests in VIEs, for which we are not the primary beneficiary, that have entered into loan agreements with third parties. Under the terms of our contractual arrangements with certain of these VIEs, we may provide financial support to such entities under specified circumstances, including default of such a VIE under a third-party loan agreement, and may have the option to acquire a controlling interest in such an entity at a predetermined amount. In a circumstance that we provide financial support or exercise our option to acquire an additional interest in a VIE, we may be required to reassess whether we are the primary beneficiary of the VIE. If we determine that we are the primary beneficiary of the VIE, we would be required to consolidate the total assets, liabilities and results of operations of the VIE, which may be material upon consolidation. We have entered into agreements with owners of certain hotels that we manage or will manage or franchise to finance capital expenditures at the hotels for approximately $29 million . As of March 31, 2019 , we had not funded any of these commitments and expect to fund $19 million in the remainder of 2019 and $10 million in 2020. We receive fees from managed and franchised properties to operate our marketing, sales and brand programs on behalf of hotel owners. As of March 31, 2019 and December 31, 2018 , we had collected an aggregate of $355 million and $375 million in excess of amounts expended, respectively, across all programs. We are involved in various claims and lawsuits arising in the ordinary course of business, some of which include claims for substantial sums. While the ultimate results of claims and litigation cannot be predicted with certainty, we expect that the ultimate resolution of all pending or threatened claims and litigation as of March 31, 2019 will not have a material adverse effect on our consolidated financial position, results of operations or cash flows.

Condensed Consolidating Guarant

Condensed Consolidating Guarantor Financial Information	3 Months Ended
	Mar. 31, 2019
Condensed Consolidating Guarantor Financial Information [Abstract]
Condensed Consolidating Guarantor Financial Information	Condensed Consolidating Guarantor Financial Information Hilton Worldwide Finance LLC and Hilton Worldwide Finance Corp. (together, the "HWF Issuers") are 100 percent owned by Hilton Worldwide Parent LLC ("HWP"), which is 100 percent owned by the Parent, and issued the 2025 Senior Notes and 2027 Senior Notes. Hilton Domestic Operating Company Inc. ("HOC"), which is 100 percent owned by Hilton Worldwide Finance LLC, issued the 2026 Senior Notes and assumed the 2024 Senior Notes. The 2024 Senior Notes, 2025 Senior Notes, 2026 Senior Notes and 2027 Senior Notes are collectively referred to as the Senior Notes. The HWF Issuers and HOC are collectively referred to as the Subsidiary Issuers. The Senior Notes are guaranteed jointly and severally on a senior unsecured basis by HWP, the Parent and certain of the Parent's wholly owned domestic restricted subsidiaries that are themselves not issuers of the applicable series of Senior Notes (together, the "Guarantors''). The indentures that govern the Senior Notes provide that any subsidiary of the Company that provides a guarantee of our senior secured credit facilities will guarantee the Senior Notes. Additionally, the HWF Issuers are guarantors of the 2026 Senior Notes and the 2024 Senior Notes and HOC is a guarantor of the 2025 Senior Notes and the 2027 Senior Notes. As of March 31, 2019 , none of our foreign subsidiaries or U.S. subsidiaries owned by foreign subsidiaries or conducting foreign operations or our non-wholly owned subsidiaries guarantee the Senior Notes (collectively, the "Non-Guarantors"). The guarantees are full and unconditional, subject to certain customary release provisions. The indentures that govern the Senior Notes provide that any Guarantor may be released from its guarantee so long as: (i) the subsidiary is sold or sells all of its assets; (ii) the subsidiary is released from its guaranty under our senior secured credit facilities; (iii) the subsidiary is declared "unrestricted" for covenant purposes; (iv) the subsidiary is merged with or into the applicable Subsidiary Issuers or another Guarantor or the Guarantor liquidates after transferring all of its assets to the applicable Subsidiary Issuers or another Guarantor; or (v) the requirements for legal defeasance or covenant defeasance or to discharge the indenture have been satisfied, in each case in compliance with applicable provisions of the indentures. The following tables present the condensed consolidating financial information as of March 31, 2019 and December 31, 2018 , and for the three months ended March 31, 2019 and 2018 , for the Parent, HWF Issuers, HOC, Guarantors and Non-Guarantors. The condensed consolidating financial information presents the financial information for all periods based on the composition of the Guarantors and Non-Guarantors as of March 31, 2019 . March 31, 2019 Parent HWF Issuers HOC Guarantors Non-Guarantors Eliminations Total (in millions) ASSETS Current Assets: Cash and cash equivalents $ — $ — $ 3 $ 31 $ 348 $ — $ 382 Restricted cash and cash equivalents — — 34 15 30 — 79 Accounts receivable, net — — 10 818 274 — 1,102 Intercompany receivables — — — — 40 (40 ) — Prepaid expenses — — 28 55 62 (5 ) 140 Other — 2 1 21 149 — 173 Total current assets — 2 76 940 903 (45 ) 1,876 Intangibles and Other Assets: Investments in subsidiaries 105 4,767 7,515 105 — (12,492 ) — Goodwill — — — 3,824 1,338 — 5,162 Brands — — — 4,405 467 — 4,872 Management and franchise contracts, net — — — 527 314 — 841 Other intangible assets, net — — — 282 126 — 408 Operating lease right-of-use assets — — 33 11 872 — 916 Property and equipment, net — — 63 67 282 — 412 Deferred income tax assets 4 — 89 — 147 (94 ) 146 Other — 6 32 22 160 — 220 Total intangibles and other assets 109 4,773 7,732 9,243 3,706 (12,586 ) 12,977 TOTAL ASSETS $ 109 $ 4,775 $ 7,808 $ 10,183 $ 4,609 $ (12,631 ) $ 14,853 LIABILITIES AND EQUITY Current Liabilities: Accounts payable, accrued expenses and other $ 9 $ 38 $ 187 $ 706 $ 739 $ — $ 1,679 Current maturities of long-term debt — — 19 — 16 — 35 Current portion of deferred revenues — — 73 240 15 (5 ) 323 Intercompany payables — — 40 — — (40 ) — Current portion of liability for guest loyalty program — — — 757 — — 757 Total current liabilities 9 38 319 1,703 770 (45 ) 2,794 Long-term debt — 4,625 2,484 — 221 — 7,330 Operating lease liabilities — — 40 12 1,051 — 1,103 Deferred revenues — — — 763 67 — 830 Deferred income tax liabilities — 3 — 941 — (94 ) 850 Liability for guest loyalty program — — — 987 — — 987 Other — 4 198 95 554 — 851 Total liabilities 9 4,670 3,041 4,501 2,663 (139 ) 14,745 Equity: Total Hilton stockholders' equity 100 105 4,767 5,682 1,938 (12,492 ) 100 Noncontrolling interests — — — — 8 — 8 Total equity 100 105 4,767 5,682 1,946 (12,492 ) 108 TOTAL LIABILITIES AND EQUITY $ 109 $ 4,775 $ 7,808 $ 10,183 $ 4,609 $ (12,631 ) $ 14,853 December 31, 2018 Parent HWF Issuers HOC Guarantors Non-Guarantors Eliminations Total (in millions) ASSETS Current Assets: Cash and cash equivalents $ — $ — $ 3 $ 17 $ 383 $ — $ 403 Restricted cash and cash equivalents — — 34 15 32 — 81 Accounts receivable, net — — 10 735 405 — 1,150 Intercompany receivables — — — — 40 (40 ) — Prepaid expenses — — 52 37 80 (9 ) 160 Other — 1 1 36 154 (3 ) 189 Total current assets — 1 100 840 1,094 (52 ) 1,983 Intangibles and Other Assets: Investments in subsidiaries 557 5,131 7,930 557 — (14,175 ) — Goodwill — — — 3,824 1,336 — 5,160 Brands — — — 4,404 465 — 4,869 Management and franchise contracts, net — — — 556 316 — 872 Other intangible assets, net — — — 287 128 — 415 Property and equipment, net — — 27 65 275 — 367 Deferred income tax assets 4 — 94 — 90 (98 ) 90 Other — 23 33 22 161 — 239 Total intangibles and other assets 561 5,154 8,084 9,715 2,771 (14,273 ) 12,012 TOTAL ASSETS $ 561 $ 5,155 $ 8,184 $ 10,555 $ 3,865 $ (14,325 ) $ 13,995 LIABILITIES AND EQUITY Current Liabilities: Accounts payable, accrued expenses and other $ 10 $ 19 $ 229 $ 529 $ 765 $ (3 ) $ 1,549 Current maturities of long-term debt — — — — 16 — 16 Current portion of deferred revenues — — 106 239 14 (9 ) 350 Intercompany payables — — 40 — — (40 ) — Current portion of liability for guest loyalty program — — — 700 — — 700 Total current liabilities 10 19 375 1,468 795 (52 ) 2,615 Long-term debt — 4,573 2,467 — 226 — 7,266 Deferred revenues — — — 762 64 — 826 Deferred income tax liabilities — 6 — 962 28 (98 ) 898 Liability for guest loyalty program — — — 969 — — 969 Other — — 211 93 559 — 863 Total liabilities 10 4,598 3,053 4,254 1,672 (150 ) 13,437 Equity: Total Hilton stockholders' equity 551 557 5,131 6,301 2,186 (14,175 ) 551 Noncontrolling interests — — — — 7 — 7 Total equity 551 557 5,131 6,301 2,193 (14,175 ) 558 TOTAL LIABILITIES AND EQUITY $ 561 $ 5,155 $ 8,184 $ 10,555 $ 3,865 $ (14,325 ) $ 13,995 Three Months Ended March 31, 2019 Parent HWF Issuers HOC Guarantors Non-Guarantors Eliminations Total (in millions) Revenues Franchise and licensing fees $ — $ — $ 61 $ 294 $ 32 $ (5 ) $ 382 Base and other management fees — — — 52 28 — 80 Incentive management fees — — — 23 32 — 55 Owned and leased hotels — — — — 312 — 312 Other revenues — — — 23 3 — 26 — — 61 392 407 (5 ) 855 Other revenues from managed and franchised properties — — 75 1,139 135 — 1,349 Total revenues — — 136 1,531 542 (5 ) 2,204 Expenses Owned and leased hotels — — — — 298 — 298 Depreciation and amortization — — 2 62 20 — 84 General and administrative — — 82 — 31 (6 ) 107 Other expenses — — 1 8 10 1 20 — — 85 70 359 (5 ) 509 Other expenses from managed and franchised properties — — 72 1,178 133 — 1,383 Total expenses — — 157 1,248 492 (5 ) 1,892 Operating income (loss) — — (21 ) 283 50 — 312 Interest expense — (51 ) (35 ) — (12 ) — (98 ) Gain (loss) on foreign currency transactions — — 2 (18 ) 16 — — Other non-operating income, net — — — — 4 — 4 Income (loss) before income taxes and equity in earnings from subsidiaries — (51 ) (54 ) 265 58 — 218 Income tax benefit (expense) — 12 13 (65 ) (19 ) — (59 ) Income (loss) before equity in earnings from subsidiaries — (39 ) (41 ) 200 39 — 159 Equity in earnings from subsidiaries 158 197 238 158 — (751 ) — Net income 158 158 197 358 39 (751 ) 159 Net income attributable to noncontrolling interests — — — — (1 ) — (1 ) Net income attributable to Hilton stockholders $ 158 $ 158 $ 197 $ 358 $ 38 $ (751 ) $ 158 Comprehensive income $ 142 $ 143 $ 198 $ 358 $ 37 $ (735 ) $ 143 Comprehensive income attributable to noncontrolling interests — — — — (1 ) — (1 ) Comprehensive income attributable to Hilton stockholders $ 142 $ 143 $ 198 $ 358 $ 36 $ (735 ) $ 142 Three Months Ended March 31, 2018 Parent HWF Issuers HOC Guarantors Non-Guarantors Eliminations Total (in millions) Revenues Franchise and licensing fees $ — $ — $ 44 $ 262 $ 29 $ (4 ) $ 331 Base and other management fees — — — 51 26 — 77 Incentive management fees — — — 21 34 — 55 Owned and leased hotels — — — — 334 — 334 Other revenues — — 2 24 2 (5 ) 23 — — 46 358 425 (9 ) 820 Other revenues from managed and franchised properties — — 44 1,070 140 — 1,254 Total revenues — — 90 1,428 565 (9 ) 2,074 Expenses Owned and leased hotels — — — — 320 — 320 Depreciation and amortization — — 1 60 21 — 82 General and administrative — — 73 — 35 (4 ) 104 Other expenses — — 2 7 9 (4 ) 14 — — 76 67 385 (8 ) 520 Other expenses from managed and franchised properties — — 46 1,084 145 — 1,275 Total expenses — — 122 1,151 530 (8 ) 1,795 Operating income (loss) — — (32 ) 277 35 (1 ) 279 Interest expense — (61 ) (13 ) — (10 ) 1 (83 ) Gain (loss) on foreign currency transactions — — (3 ) 8 6 — 11 Other non-operating income, net — — 3 8 3 — 14 Income (loss) before income taxes and equity in earnings from subsidiaries — (61 ) (45 ) 293 34 — 221 Income tax benefit (expense) — 15 13 (73 ) (13 ) — (58 ) Income (loss) before equity in earnings from subsidiaries — (46 ) (32 ) 220 21 — 163 Equity in earnings from subsidiaries 161 207 239 161 — (768 ) — Net income 161 161 207 381 21 (768 ) 163 Net income attributable to noncontrolling interests — — — — (2 ) — (2 ) Net income attributable to Hilton stockholders $ 161 $ 161 $ 207 $ 381 $ 19 $ (768 ) $ 161 Comprehensive income $ 222 $ 190 $ 207 $ 382 $ 52 $ (829 ) $ 224 Comprehensive income attributable to noncontrolling interests — — — — (2 ) — (2 ) Comprehensive income attributable to Hilton stockholders $ 222 $ 190 $ 207 $ 382 $ 50 $ (829 ) $ 222 Three Months Ended March 31, 2019 Parent HWF Issuers HOC Guarantors Non-Guarantors Eliminations Total (in millions) Operating Activities: Net cash provided by (used in) operating activities $ — $ (38 ) $ — $ 387 $ 15 $ — $ 364 Investing Activities: Capital expenditures for property and equipment — — (4 ) (1 ) (18 ) — (23 ) Capitalized software costs — — — (19 ) — — (19 ) Other — — — — (2 ) — (2 ) Net cash used in investing activities — — (4 ) (20 ) (20 ) — (44 ) Financing Activities: Borrowings — 375 — — — — 375 Repayment of debt — (325 ) (7 ) — (4 ) — (336 ) Intercompany transfers 340 (12 ) 53 (353 ) (28 ) — — Dividends paid (44 ) — — — — — (44 ) Repurchases of common stock (296 ) — — — — — (296 ) Tax withholdings on share-based compensation — — (42 ) — — — (42 ) Net cash provided by (used in) financing activities — 38 4 (353 ) (32 ) — (343 ) Effect of exchange rate changes on cash, restricted cash and cash equivalents — — — — — — — Net increase (decrease) in cash, restricted cash and cash equivalents — — — 14 (37 ) — (23 ) Cash, restricted cash and cash equivalents, beginning of period — — 37 32 415 — 484 Cash, restricted cash and cash equivalents, end of period $ — $ — $ 37 $ 46 $ 378 $ — $ 461 Three Months Ended March 31, 2018 Parent HWF Issuers HOC Guarantors Non-Guarantors Eliminations Total (in millions) Operating Activities: Net cash provided by (used in) operating activities $ — $ (46 ) $ (29 ) $ 307 $ 11 $ — $ 243 Investing Activities: Capital expenditures for property and equipment — — — (1 ) (9 ) — (10 ) Capitalized software costs — — — (15 ) — — (15 ) Other — — — (2 ) 1 — (1 ) Net cash used in investing activities — — — (18 ) (8 ) — (26 ) Financing Activities: Repayment of debt — (10 ) — — (4 ) — (14 ) Intercompany transfers 157 56 41 (293 ) 39 — — Dividends paid (47 ) — — — — — (47 ) Repurchases of common stock (110 ) — — — — — (110 ) Tax withholdings on share-based compensation — — (40 ) — — — (40 ) Net cash provided by (used in) financing activities — 46 1 (293 ) 35 — (211 ) Effect of exchange rate changes on cash, restricted cash and cash equivalents — — — — 7 — 7 Net increase (decrease) in cash, restricted cash and cash equivalents — — (28 ) (4 ) 45 — 13 Cash, restricted cash and cash equivalents, beginning of period — — 63 28 579 — 670 Cash, restricted cash and cash equivalents, end of period $ — $ — $ 35 $ 24 $ 624 $ — $ 683

Basis of Presentation and Sum_2

Basis of Presentation and Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2019
Accounting Policies [Abstract]
Leases	Leases We determine if a contract is or contains a lease at the inception of the contract, and we classify that lease as a finance lease if it meets certain criteria or as an operating lease when it does not. We reassess if a contract is or contains a leasing arrangement upon modification of the contract. For a contract in which we are a lessee that contains fixed payments for both lease and non-lease components, we have elected to account for the components as a single lease component, as permitted. At the commencement date of a lease, we recognize a lease liability for future fixed lease payments and a right-of-use ("ROU") asset representing our right to use the underlying asset during the lease term. The lease liability is initially measured as the present value of the future fixed lease payments that will be made over the lease term. The lease term includes lessee options to extend the lease and periods occurring after a lessee early termination option, only to the extent it is reasonably certain that we will exercise such extension options and not exercise such early termination options, respectively. The future fixed lease payments are discounted using the rate implicit in the lease, if available, or our incremental borrowing rate. Our incremental borrowing rate is estimated on a portfolio basis and incorporates lease term, currency risk, credit risk and an adjustment for collateral. Upon adoption of ASU 2016-02, we elected to use the remaining lease term as of January 1, 2019 in our estimation of the applicable discount rate for leases that were in place at adoption. For the initial measurement of the lease liability for leases commencing after January 1, 2019, we use the discount rate as of the commencement date of the lease, incorporating the entire lease term. Additionally, we elected not to recognize leases with lease terms of 12 months or less at the commencement date in our consolidated balance sheets. Current maturities and long-term portions of operating lease liabilities are classified as accounts payable, accrued expenses and other and operating lease liabilities, respectively, and current maturities and long-term portions of finance lease liabilities are classified as current maturities of long-term debt and long-term debt, respectively, in our consolidated balance sheets. The ROU asset is measured at the amount of the lease liability with adjustments, if applicable, for lease prepayments made prior to or at lease commencement, initial direct costs incurred by us and lease incentives. We evaluate the carrying value of ROU assets if there are indicators of impairment, and we perform the analysis with the review of the recoverability of the related asset group. If the carrying value of the asset group is determined to not be recoverable and is in excess of the estimated fair value, we record an impairment loss in our consolidated statements of operations. ROU assets of operating leases are classified as operating lease right-of-use assets and ROU assets of finance leases are classified as property and equipment, net in our consolidated balance sheets. Our operating leases require: (i) fixed lease payments, or minimum payments, as contractually stated in the lease agreement; (ii) variable lease payments, which, for our hotels, are generally based on a percentage of the underlying asset's revenues or are dependent on changes in an index; or (iii) lease payments equal to the greater of the fixed or variable lease payments. In addition, we may be required to pay some, or all, of the capital costs for furniture, equipment and leasehold improvements in a hotel property that we lease during the term of the lease. For operating leases, lease expense relating to fixed payments is recognized on a straight-line basis over the lease term and lease expense relating to variable payments is expensed as incurred, with amounts recognized in owned and leased hotel expenses and general and administrative expenses in our consolidated statements of operations. For finance leases, the amortization of the asset is recognized over the shorter of the lease term or useful life of the underlying asset within depreciation and amortization expense and other expenses from managed and franchised properties in our consolidated statements of operations. The interest expense related to finance leases, including any variable lease payments, is recognized in interest expense in our consolidated statements of operations.
New Accounting Pronouncements	Recently Issued Accounting Pronouncements In August 2018, the Financial Accounting Standards Board ("FASB") issued ASU No. 2018-15 ("ASU 2018-15"), Intangibles – Goodwill and Other – Internal-use Software (Subtopic 350-40): Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract. This ASU aligns guidance for capitalizing implementation costs incurred in a cloud computing arrangement that is a service contract with guidance for capitalizing implementation costs to develop or obtain internal-use software. Capitalized implementation costs will be amortized over the term of the arrangement and presented in the same line item in the statement of operations as the fees associated with the service contract. We elected, as permitted by the standard, to early adopt ASU 2018-05 on a prospective basis as of January 1, 2019. The adoption did not have a material effect on our condensed consolidated financial statements. In February 2016, the FASB issued ASU 2016-02 , which supersedes existing guidance on accounting for leases in Leases (Topic 840) and generally requires all leases, including operating leases, to be recognized in the statement of financial position of lessees as ROU assets and lease liabilities, with certain practical expedients available. Subsequent to ASU 2016-02, the FASB issued related ASUs, including ASU No. 2018-11 ("ASU 2018-11"), Leases (Topic 842): Targeted Improvements, which provides for another transition method in addition to the modified retrospective approach required by ASU 2016-02. This option allows entities to initially apply the new leases standard at the adoption date and recognize a cumulative adjustment to the opening balance of retained earnings in the period of adoption. As described above, we adopted ASU 2016-02 on January 1, 2019 and applied the package of practical expedients included therein, as well as utilized the transition method included in ASU 2018-11. By applying ASU 2016-02 at the adoption date, as opposed to at the beginning of the earliest period presented, the presentation of financial information for periods prior to January 1, 2019 remain unchanged and in accordance with Leases (Topic 840) . On January 1, 2019, we recognized a $256 million cumulative adjustment to accumulated deficit, net of taxes of $81 million related to a decrease to our deferred liability, as a result of the impairment of ROU assets that occurred in periods prior to the adoption date.

Revenues from Contracts with _2

Revenues from Contracts with Customers (Tables)	3 Months Ended
	Mar. 31, 2019
Revenue from Contract with Customer [Abstract]
Contract Liabilities	The following table summarizes the activity of our contract liabilities, which are classified as a component of current and long-term deferred revenues, during the three months ended March 31, 2019 : (in millions) Balance as of December 31, 2018 $ 1,060 Cash received in advance and not recognized as revenue (1) 106 Revenue recognized (1) (57 ) Other (2) (46 ) Balance as of March 31, 2019 $ 1,063 ____________ (1) Primarily related to Hilton Honors, our guest loyalty program. (2) Primarily the result of changes in estimated transaction prices for our performance obligations related to points issued under Hilton Honors, which had no effect on revenues.

Consolidated Variable Interes_2

Consolidated Variable Interest Entities (Tables)	3 Months Ended
	Mar. 31, 2019
Variable Interest Entity, Primary Beneficiary, Does Not Hold Majority Voting Interest, Disclosures [Abstract]
Schedule of Variable Interest Entities	Our condensed consolidated balance sheets included the assets and liabilities of these entities, which primarily comprised the following: March 31, December 31, 2019 2018 (in millions) Cash and cash equivalents $ 66 $ 71 Property and equipment, net 69 68 Deferred income tax assets 52 53 Other non-current assets 58 58 Accounts payable, accrued expenses and other 41 41 Long-term debt (1) 201 205 Other long-term liabilities 15 15 ____________ (1) Includes finance lease liabilities of $183 million and $187 million as of March 31, 2019 and December 31, 2018 , respectively.

Amortizing Intangible Assets (T

Amortizing Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Amortizing Intangible Assets	Amortizing intangible assets were as follows: March 31, 2019 Gross Carrying Value Accumulated Amortization Net Carrying Value (in millions) Management and franchise contracts: Management and franchise contracts recorded at Merger (1) $ 2,231 $ (1,917 ) $ 314 Contract acquisition costs 542 (108 ) 434 Development commissions 109 (16 ) 93 $ 2,882 $ (2,041 ) $ 841 Other intangible assets: Leases (1) $ 290 $ (165 ) $ 125 Capitalized software costs 522 (339 ) 183 Hilton Honors (1) 338 (242 ) 96 Other (1) 38 (34 ) 4 $ 1,188 $ (780 ) $ 408 December 31, 2018 Gross Carrying Value Accumulated Amortization Net Carrying Value (in millions) Management and franchise contracts: Management and franchise contracts recorded at Merger (1) $ 2,228 $ (1,873 ) $ 355 Contract acquisition costs 525 (101 ) 424 Development commissions 108 (15 ) 93 $ 2,861 $ (1,989 ) $ 872 Other intangible assets: Leases (1) $ 288 $ (161 ) $ 127 Capitalized software costs 503 (321 ) 182 Hilton Honors (1) 338 (236 ) 102 Other (1) 38 (34 ) 4 $ 1,167 $ (752 ) $ 415 ____________ (1) Represents intangible assets that were initially recorded at their fair value as part of the October 24, 2007 transaction whereby we became a wholly owned subsidiary of affiliates of The Blackstone Group L.P (the "Merger").
Amortization of Amortizing Intangible Assets	Amortization of our amortizing intangible assets was as follows: Three Months Ended March 31, 2019 2018 (in millions) Recognized in depreciation and amortization expense (1) $ 70 $ 69 Recognized as a reduction of franchise and licensing fees and base and other management fees 7 7 ____________ (1) Includes amortization expense of $51 million for the three months ended March 31, 2019 and 2018 associated with assets that were initially recorded at their fair value at the time of the Merger.
Schedule of Future Amortization Expense of Intangible Assets	We estimate future amortization of our amortizing intangible assets as of March 31, 2019 to be as follows: Recognized in Depreciation and Amortization Expense Recognized as a Reduction of Franchise and Licensing Fees and Base and Other Management Fees Year (in millions) 2019 (remaining) $ 212 $ 20 2020 240 25 2021 102 25 2022 71 23 2023 52 22 Thereafter 138 319 $ 815 $ 434

Debt (Tables)

Debt (Tables)	3 Months Ended
	Mar. 31, 2019
Debt Disclosure [Abstract]
Long-term Debt	Long-term debt balances, including obligations for finance leases, and associated interest rates as of March 31, 2019 , were as follows: March 31, December 31, 2019 2018 (in millions) Senior notes with a rate of 4.250%, due 2024 $ 1,000 $ 1,000 Senior notes with a rate of 4.625%, due 2025 900 900 Senior notes with a rate of 5.125%, due 2026 1,500 1,500 Senior notes with a rate of 4.875%, due 2027 600 600 Senior secured revolving credit facility with a rate of 3.98%, due 2021 50 — Senior secured term loan facility with a rate of 4.24%, due 2023 3,119 3,119 Finance lease liabilities with an average rate of 5.84%, due 2019 to 2030 255 225 Other debt with a rate of 3.08% due 2026 17 17 7,441 7,361 Less: unamortized deferred financing costs and discount (76 ) (79 ) Less: current maturities of long-term debt (1) (35 ) (16 ) $ 7,330 $ 7,266 ____________ (1) Represents current maturities of finance lease liabilities.
Debt Maturities	The contractual maturities of our long-term debt as of March 31, 2019 were as follows: Year (in millions) 2019 (remaining) $ 27 2020 32 2021 74 2022 18 2023 3,139 Thereafter 4,151 $ 7,441

Fair Value Measurements (Table

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2019
Fair Value Disclosures [Abstract]
Fair Value of Financial Assets and Liabilities	The fair values of certain financial instruments and the hierarchy level we used to estimate the fair values are shown below; the fair values of financial instruments not included in these tables are estimated to be equal to their carrying values as of March 31, 2019 and December 31, 2018 : March 31, 2019 Hierarchy Level Carrying Value Level 1 Level 2 Level 3 (in millions) Assets: Cash equivalents $ 20 $ — $ 20 $ — Restricted cash equivalents 17 — 17 — Liabilities: Long-term debt (1) 7,093 4,047 — 3,162 Interest rate swaps 4 — 4 — December 31, 2018 Hierarchy Level Carrying Value Level 1 Level 2 Level 3 (in millions) Assets: Cash equivalents $ 87 $ — $ 87 $ — Restricted cash equivalents 18 — 18 — Interest rate swaps 16 — 16 — Liabilities: Long-term debt (1) 7,040 3,809 — 3,039 ____________ (1) The carrying values include unamortized deferred financing costs and discount. The carrying values and fair values exclude finance lease liabilities and other debt.

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 31, 2019
Lessee Disclosure [Abstract]
Supplemental Balance Sheet Information Related to Leases	Supplemental balance sheet information related to leases as of March 31, 2019 was as follows: (dollars in millions) Operating leases: Operating lease right-of-use assets $ 916 Accounts payable, accrued expenses and other 131 Operating lease liabilities 1,103 Finance leases: Property and equipment, net $ 55 Current maturities of long-term debt 35 Long-term debt 220 Weighted average remaining lease term: Operating leases 13.3 years Finance leases 9.2 years Weighted average discount rate: Operating leases 3.74 % Finance leases 5.84 %
Components of Lease Expense	The components of lease expense for the three months ended March 31, 2019 were as follows: (in millions) Operating lease expense for fixed payments $ 37 Finance lease expense: Amortization of ROU assets 8 Interest on lease liabilities 4 Variable lease expense (1) 19 ____________ (1) Includes amounts related to operating leases and interest payments on finance leases.
Supplemental Cash Flow Information Related to Leases	Supplemental cash flow information related to leases for the three months ended March 31, 2019 was as follows: (in millions) Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 48 Financing cash flows from finance leases 11 ROU assets obtained in exchange for lease liabilities in non-cash transactions: Operating leases (1) — Finance leases 42
Schedule of Future Minimum Lease Payments	Our future minimum lease payments as of March 31, 2019 were as follows: Operating Finance Year (in millions) 2019 (remaining) $ 132 $ 38 2020 174 45 2021 160 36 2022 136 29 2023 121 29 Thereafter 889 162 Total minimum lease payments 1,612 339 Less: imputed interest (378 ) (84 ) Total lease liabilities $ 1,234 $ 255

Share-Based Compensation (Table

Share-Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Stock Options Valuation Assumptions	The weighted average grant date fair value per share of the options granted during the three months ended March 31, 2019 was $21.08 , which was determined using the Black-Scholes-Merton option-pricing model with the following assumptions: Expected volatility (1) 23.51 % Dividend yield (2) 0.81 % Risk-free rate (3) 2.47 % Expected term (in years) (4) 6.0 ____________ (1) Estimated using historical movement of Hilton's stock price. (2) Estimated based on the quarterly dividend and the three-month average stock price at the date of grant. (3) Based on the yields of U.S. Department of Treasury instruments with similar expected lives. (4) Estimated using the average of the vesting periods and the contractual term of the options.

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2019
Earnings Per Share [Abstract]
Basic and Diluted Earnings Per Share	The following table presents the calculation of basic and diluted earnings per share ("EPS"): Three Months Ended March 31, 2019 2018 (in millions, except per share amounts) Basic EPS: Numerator: Net income attributable to Hilton stockholders $ 158 $ 161 Denominator: Weighted average shares outstanding 293 316 Basic EPS $ 0.54 $ 0.51 Diluted EPS: Numerator: Net income attributable to Hilton stockholders $ 158 $ 161 Denominator: Weighted average shares outstanding 295 319 Diluted EPS $ 0.54 $ 0.51

Stockholders' Equity and Accu_2

Stockholders' Equity and Accumulated Other Comprehensive Loss (Tables)	3 Months Ended
	Mar. 31, 2019
Stockholders' Equity Note [Abstract]
Schedule of Stockholders' Equity	The changes in the components of stockholders' equity were as follows: Equity Attributable to Hilton Stockholders Treasury Stock Additional Accumulated Deficit Accumulated Other Comprehensive Loss Common Stock Noncontrolling Shares Amount Total (in millions) Balance as of December 31, 2018 295 $ 3 $ (2,625 ) $ 10,372 $ (6,417 ) $ (782 ) $ 7 $ 558 Net income — — — — 158 — 1 159 Other comprehensive loss — — — — — (16 ) — (16 ) Dividends — — — — (43 ) — — (43 ) Repurchases of common stock (4 ) — (296 ) — — — — (296 ) Share-based compensation 1 — — 2 — — — 2 Cumulative effect of the adoption of ASU 2016-02 — — — — (256 ) — — (256 ) Balance as of March 31, 2019 292 $ 3 $ (2,921 ) $ 10,374 $ (6,558 ) $ (798 ) $ 8 $ 108 Equity Attributable to Hilton Stockholders Treasury Stock Additional Accumulated Deficit Accumulated Other Comprehensive Loss Common Stock Noncontrolling Interests Shares Amount Total (in millions) Balance as of December 31, 2017 317 $ 3 $ (891 ) $ 10,298 $ (6,981 ) $ (741 ) $ 3 $ 1,691 Net income — — — — 161 — 2 163 Other comprehensive income — — — — — 61 — 61 Dividends — — — — (48 ) — — (48 ) Repurchases of common stock (1 ) — (110 ) — — — — (110 ) Share-based compensation 1 — — (10 ) — — — (10 ) Balance as of March 31, 2018 317 $ 3 $ (1,001 ) $ 10,288 $ (6,868 ) $ (680 ) $ 5 $ 1,747
Schedule of Accumulated Other Comprehensive Loss	The changes in the components of accumulated other comprehensive loss, net of taxes, were as follows: Currency Translation Adjustment (1) Pension Liability Adjustment (2) Cash Flow Hedge Adjustment (3) Total (in millions) Balance as of December 31, 2018 $ (545 ) $ (260 ) $ 23 $ (782 ) Other comprehensive loss before reclassifications (3 ) — (13 ) (16 ) Amounts reclassified from accumulated other comprehensive loss — 2 (2 ) — Net current period other comprehensive income (loss) (3 ) 2 (15 ) (16 ) Balance as of March 31, 2019 $ (548 ) $ (258 ) $ 8 $ (798 ) Currency Translation Adjustment (1) Pension Liability Adjustment (2) Cash Flow Hedge Adjustment (3) Total (in millions) Balance as of December 31, 2017 $ (513 ) $ (229 ) $ 1 $ (741 ) Other comprehensive income (loss) before reclassifications 32 (1 ) 24 55 Amounts reclassified from accumulated other comprehensive loss — 2 4 6 Net current period other comprehensive income 32 1 28 61 Balance as of March 31, 2018 $ (481 ) $ (228 ) $ 29 $ (680 ) ____________ (1) Includes net investment hedges and intra-entity foreign currency transactions that are of a long-term investment nature. (2) Amounts reclassified include the amortization of prior service cost and the amortization of net loss that were included in our computation of net periodic pension cost. They were recognized in other non-operating income, net in our condensed consolidated statements of operations and are presented net of a tax benefit of $1 million for the three months ended March 31, 2019 and 2018 . (3) Amounts reclassified relate to designated interest rate swaps, as well as interest rate swaps that were dedesignated and settled. The amounts were recognized in interest expense in our condensed consolidated statements of operations and are presented net of a tax expense of $1 million and a tax benefit of $1 million for the three months ended March 31, 2019 and 2018 , respectively.

Business Segments (Tables)

Business Segments (Tables)	3 Months Ended
	Mar. 31, 2019
Segment Reporting [Abstract]
Reconciliation of Revenue from Segment Amounts to Consolidated Amounts	The following table presents revenues for our reportable segments, reconciled to consolidated amounts: Three Months Ended March 31, 2019 2018 (in millions) Franchise and licensing fees $ 385 $ 333 Base and other management fees (1) 92 90 Incentive management fees 55 55 Management and franchise 532 478 Ownership 312 334 Segment revenues 844 812 Amortization of contract acquisition costs (7 ) (7 ) Other revenues 26 23 Direct reimbursements from managed and franchised properties (2) 775 699 Indirect reimbursements from managed and franchised properties (2) 574 555 Intersegment fees elimination (1) (8 ) (8 ) Total revenues $ 2,204 $ 2,074 ____________ (1) Includes management, royalty and IP fees charged to our ownership segment by our management and franchise segment, which were eliminated in our condensed consolidated statements of operations. (2) Included in other revenues from managed and franchised properties in our condensed consolidated statements of operations.
Reconciliation of Segment Operating Income to Income Before Income Taxes	The following table presents operating income for our reportable segments, reconciled to consolidated income before income taxes: Three Months Ended March 31, 2019 2018 (in millions) Management and franchise (1) $ 532 $ 478 Ownership (1) 6 6 Segment operating income 538 484 Amortization of contract acquisition costs (7 ) (7 ) Other revenues, less other expenses 6 9 Net other expenses from managed and franchised properties (34 ) (21 ) Depreciation and amortization (84 ) (82 ) General and administrative (107 ) (104 ) Operating income 312 279 Interest expense (98 ) (83 ) Gain on foreign currency transactions — 11 Other non-operating income, net 4 14 Income before income taxes $ 218 $ 221 ____________ (1) Includes management, royalty and IP fees charged to our ownership segment by our management and franchise segment, which were eliminated in our condensed consolidated statements of operations.
Schedule of Assets by Segment	The following table presents total assets for our reportable segments, reconciled to consolidated amounts: March 31, December 31, 2019 2018 (in millions) Management and franchise $ 11,365 $ 11,362 Ownership 1,737 927 Corporate and other 1,751 1,706 $ 14,853 $ 13,995
Schedule of Capital Expenditures by Segment	The following table presents capital expenditures for property and equipment for our reportable segments, reconciled to consolidated amounts: Three Months Ended March 31, 2019 2018 (in millions) Ownership $ 11 $ 7 Corporate and other 12 3 $ 23 $ 10

Condensed Consolidating Guara_2

Condensed Consolidating Guarantor Financial Information (Tables)	3 Months Ended
	Mar. 31, 2019
Condensed Consolidating Guarantor Financial Information [Abstract]
Condensed Balance Sheet	March 31, 2019 Parent HWF Issuers HOC Guarantors Non-Guarantors Eliminations Total (in millions) ASSETS Current Assets: Cash and cash equivalents $ — $ — $ 3 $ 31 $ 348 $ — $ 382 Restricted cash and cash equivalents — — 34 15 30 — 79 Accounts receivable, net — — 10 818 274 — 1,102 Intercompany receivables — — — — 40 (40 ) — Prepaid expenses — — 28 55 62 (5 ) 140 Other — 2 1 21 149 — 173 Total current assets — 2 76 940 903 (45 ) 1,876 Intangibles and Other Assets: Investments in subsidiaries 105 4,767 7,515 105 — (12,492 ) — Goodwill — — — 3,824 1,338 — 5,162 Brands — — — 4,405 467 — 4,872 Management and franchise contracts, net — — — 527 314 — 841 Other intangible assets, net — — — 282 126 — 408 Operating lease right-of-use assets — — 33 11 872 — 916 Property and equipment, net — — 63 67 282 — 412 Deferred income tax assets 4 — 89 — 147 (94 ) 146 Other — 6 32 22 160 — 220 Total intangibles and other assets 109 4,773 7,732 9,243 3,706 (12,586 ) 12,977 TOTAL ASSETS $ 109 $ 4,775 $ 7,808 $ 10,183 $ 4,609 $ (12,631 ) $ 14,853 LIABILITIES AND EQUITY Current Liabilities: Accounts payable, accrued expenses and other $ 9 $ 38 $ 187 $ 706 $ 739 $ — $ 1,679 Current maturities of long-term debt — — 19 — 16 — 35 Current portion of deferred revenues — — 73 240 15 (5 ) 323 Intercompany payables — — 40 — — (40 ) — Current portion of liability for guest loyalty program — — — 757 — — 757 Total current liabilities 9 38 319 1,703 770 (45 ) 2,794 Long-term debt — 4,625 2,484 — 221 — 7,330 Operating lease liabilities — — 40 12 1,051 — 1,103 Deferred revenues — — — 763 67 — 830 Deferred income tax liabilities — 3 — 941 — (94 ) 850 Liability for guest loyalty program — — — 987 — — 987 Other — 4 198 95 554 — 851 Total liabilities 9 4,670 3,041 4,501 2,663 (139 ) 14,745 Equity: Total Hilton stockholders' equity 100 105 4,767 5,682 1,938 (12,492 ) 100 Noncontrolling interests — — — — 8 — 8 Total equity 100 105 4,767 5,682 1,946 (12,492 ) 108 TOTAL LIABILITIES AND EQUITY $ 109 $ 4,775 $ 7,808 $ 10,183 $ 4,609 $ (12,631 ) $ 14,853 December 31, 2018 Parent HWF Issuers HOC Guarantors Non-Guarantors Eliminations Total (in millions) ASSETS Current Assets: Cash and cash equivalents $ — $ — $ 3 $ 17 $ 383 $ — $ 403 Restricted cash and cash equivalents — — 34 15 32 — 81 Accounts receivable, net — — 10 735 405 — 1,150 Intercompany receivables — — — — 40 (40 ) — Prepaid expenses — — 52 37 80 (9 ) 160 Other — 1 1 36 154 (3 ) 189 Total current assets — 1 100 840 1,094 (52 ) 1,983 Intangibles and Other Assets: Investments in subsidiaries 557 5,131 7,930 557 — (14,175 ) — Goodwill — — — 3,824 1,336 — 5,160 Brands — — — 4,404 465 — 4,869 Management and franchise contracts, net — — — 556 316 — 872 Other intangible assets, net — — — 287 128 — 415 Property and equipment, net — — 27 65 275 — 367 Deferred income tax assets 4 — 94 — 90 (98 ) 90 Other — 23 33 22 161 — 239 Total intangibles and other assets 561 5,154 8,084 9,715 2,771 (14,273 ) 12,012 TOTAL ASSETS $ 561 $ 5,155 $ 8,184 $ 10,555 $ 3,865 $ (14,325 ) $ 13,995 LIABILITIES AND EQUITY Current Liabilities: Accounts payable, accrued expenses and other $ 10 $ 19 $ 229 $ 529 $ 765 $ (3 ) $ 1,549 Current maturities of long-term debt — — — — 16 — 16 Current portion of deferred revenues — — 106 239 14 (9 ) 350 Intercompany payables — — 40 — — (40 ) — Current portion of liability for guest loyalty program — — — 700 — — 700 Total current liabilities 10 19 375 1,468 795 (52 ) 2,615 Long-term debt — 4,573 2,467 — 226 — 7,266 Deferred revenues — — — 762 64 — 826 Deferred income tax liabilities — 6 — 962 28 (98 ) 898 Liability for guest loyalty program — — — 969 — — 969 Other — — 211 93 559 — 863 Total liabilities 10 4,598 3,053 4,254 1,672 (150 ) 13,437 Equity: Total Hilton stockholders' equity 551 557 5,131 6,301 2,186 (14,175 ) 551 Noncontrolling interests — — — — 7 — 7 Total equity 551 557 5,131 6,301 2,193 (14,175 ) 558 TOTAL LIABILITIES AND EQUITY $ 561 $ 5,155 $ 8,184 $ 10,555 $ 3,865 $ (14,325 ) $ 13,995
Condensed Statement of Income and Comprehensive Income	Three Months Ended March 31, 2019 Parent HWF Issuers HOC Guarantors Non-Guarantors Eliminations Total (in millions) Revenues Franchise and licensing fees $ — $ — $ 61 $ 294 $ 32 $ (5 ) $ 382 Base and other management fees — — — 52 28 — 80 Incentive management fees — — — 23 32 — 55 Owned and leased hotels — — — — 312 — 312 Other revenues — — — 23 3 — 26 — — 61 392 407 (5 ) 855 Other revenues from managed and franchised properties — — 75 1,139 135 — 1,349 Total revenues — — 136 1,531 542 (5 ) 2,204 Expenses Owned and leased hotels — — — — 298 — 298 Depreciation and amortization — — 2 62 20 — 84 General and administrative — — 82 — 31 (6 ) 107 Other expenses — — 1 8 10 1 20 — — 85 70 359 (5 ) 509 Other expenses from managed and franchised properties — — 72 1,178 133 — 1,383 Total expenses — — 157 1,248 492 (5 ) 1,892 Operating income (loss) — — (21 ) 283 50 — 312 Interest expense — (51 ) (35 ) — (12 ) — (98 ) Gain (loss) on foreign currency transactions — — 2 (18 ) 16 — — Other non-operating income, net — — — — 4 — 4 Income (loss) before income taxes and equity in earnings from subsidiaries — (51 ) (54 ) 265 58 — 218 Income tax benefit (expense) — 12 13 (65 ) (19 ) — (59 ) Income (loss) before equity in earnings from subsidiaries — (39 ) (41 ) 200 39 — 159 Equity in earnings from subsidiaries 158 197 238 158 — (751 ) — Net income 158 158 197 358 39 (751 ) 159 Net income attributable to noncontrolling interests — — — — (1 ) — (1 ) Net income attributable to Hilton stockholders $ 158 $ 158 $ 197 $ 358 $ 38 $ (751 ) $ 158 Comprehensive income $ 142 $ 143 $ 198 $ 358 $ 37 $ (735 ) $ 143 Comprehensive income attributable to noncontrolling interests — — — — (1 ) — (1 ) Comprehensive income attributable to Hilton stockholders $ 142 $ 143 $ 198 $ 358 $ 36 $ (735 ) $ 142 Three Months Ended March 31, 2018 Parent HWF Issuers HOC Guarantors Non-Guarantors Eliminations Total (in millions) Revenues Franchise and licensing fees $ — $ — $ 44 $ 262 $ 29 $ (4 ) $ 331 Base and other management fees — — — 51 26 — 77 Incentive management fees — — — 21 34 — 55 Owned and leased hotels — — — — 334 — 334 Other revenues — — 2 24 2 (5 ) 23 — — 46 358 425 (9 ) 820 Other revenues from managed and franchised properties — — 44 1,070 140 — 1,254 Total revenues — — 90 1,428 565 (9 ) 2,074 Expenses Owned and leased hotels — — — — 320 — 320 Depreciation and amortization — — 1 60 21 — 82 General and administrative — — 73 — 35 (4 ) 104 Other expenses — — 2 7 9 (4 ) 14 — — 76 67 385 (8 ) 520 Other expenses from managed and franchised properties — — 46 1,084 145 — 1,275 Total expenses — — 122 1,151 530 (8 ) 1,795 Operating income (loss) — — (32 ) 277 35 (1 ) 279 Interest expense — (61 ) (13 ) — (10 ) 1 (83 ) Gain (loss) on foreign currency transactions — — (3 ) 8 6 — 11 Other non-operating income, net — — 3 8 3 — 14 Income (loss) before income taxes and equity in earnings from subsidiaries — (61 ) (45 ) 293 34 — 221 Income tax benefit (expense) — 15 13 (73 ) (13 ) — (58 ) Income (loss) before equity in earnings from subsidiaries — (46 ) (32 ) 220 21 — 163 Equity in earnings from subsidiaries 161 207 239 161 — (768 ) — Net income 161 161 207 381 21 (768 ) 163 Net income attributable to noncontrolling interests — — — — (2 ) — (2 ) Net income attributable to Hilton stockholders $ 161 $ 161 $ 207 $ 381 $ 19 $ (768 ) $ 161 Comprehensive income $ 222 $ 190 $ 207 $ 382 $ 52 $ (829 ) $ 224 Comprehensive income attributable to noncontrolling interests — — — — (2 ) — (2 ) Comprehensive income attributable to Hilton stockholders $ 222 $ 190 $ 207 $ 382 $ 50 $ (829 ) $ 222
Condensed Statement of Cash Flows	Three Months Ended March 31, 2019 Parent HWF Issuers HOC Guarantors Non-Guarantors Eliminations Total (in millions) Operating Activities: Net cash provided by (used in) operating activities $ — $ (38 ) $ — $ 387 $ 15 $ — $ 364 Investing Activities: Capital expenditures for property and equipment — — (4 ) (1 ) (18 ) — (23 ) Capitalized software costs — — — (19 ) — — (19 ) Other — — — — (2 ) — (2 ) Net cash used in investing activities — — (4 ) (20 ) (20 ) — (44 ) Financing Activities: Borrowings — 375 — — — — 375 Repayment of debt — (325 ) (7 ) — (4 ) — (336 ) Intercompany transfers 340 (12 ) 53 (353 ) (28 ) — — Dividends paid (44 ) — — — — — (44 ) Repurchases of common stock (296 ) — — — — — (296 ) Tax withholdings on share-based compensation — — (42 ) — — — (42 ) Net cash provided by (used in) financing activities — 38 4 (353 ) (32 ) — (343 ) Effect of exchange rate changes on cash, restricted cash and cash equivalents — — — — — — — Net increase (decrease) in cash, restricted cash and cash equivalents — — — 14 (37 ) — (23 ) Cash, restricted cash and cash equivalents, beginning of period — — 37 32 415 — 484 Cash, restricted cash and cash equivalents, end of period $ — $ — $ 37 $ 46 $ 378 $ — $ 461 Three Months Ended March 31, 2018 Parent HWF Issuers HOC Guarantors Non-Guarantors Eliminations Total (in millions) Operating Activities: Net cash provided by (used in) operating activities $ — $ (46 ) $ (29 ) $ 307 $ 11 $ — $ 243 Investing Activities: Capital expenditures for property and equipment — — — (1 ) (9 ) — (10 ) Capitalized software costs — — — (15 ) — — (15 ) Other — — — (2 ) 1 — (1 ) Net cash used in investing activities — — — (18 ) (8 ) — (26 ) Financing Activities: Repayment of debt — (10 ) — — (4 ) — (14 ) Intercompany transfers 157 56 41 (293 ) 39 — — Dividends paid (47 ) — — — — — (47 ) Repurchases of common stock (110 ) — — — — — (110 ) Tax withholdings on share-based compensation — — (40 ) — — — (40 ) Net cash provided by (used in) financing activities — 46 1 (293 ) 35 — (211 ) Effect of exchange rate changes on cash, restricted cash and cash equivalents — — — — 7 — 7 Net increase (decrease) in cash, restricted cash and cash equivalents — — (28 ) (4 ) 45 — 13 Cash, restricted cash and cash equivalents, beginning of period — — 63 28 579 — 670 Cash, restricted cash and cash equivalents, end of period $ — $ — $ 35 $ 24 $ 624 $ — $ 683

Organization (Details)

Organization (Details)	Mar. 31, 2019RoomCountryHotel
Organization and Basis of Presentation [Line Items]
Number of hotel and resort properties | Hotel	5,757
Number of hotel and resort rooms | Room	923,110
Number of countries and territories | Country	113

Basis of Presentation and Sum_3

Basis of Presentation and Summary of Significant Accounting Policies Additional Information (Details) - Accounting Standards Update 2016-02 [Member] - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Jan. 01, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of the adoption of an ASU	$ (256)	$ 256
Tax effect related to the cumulative effect of the adoption of an ASU	$ 81

Revenues from Contracts with _3

Revenues from Contracts with Customers - Contract Liabilities (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2019		Mar. 31, 2018	Dec. 31, 2018
Contract with Customer, Liability [Line Items]
Contract liabilities balance		$ 1,063			$ 1,060
Cash received in advance and not recognized as revenue	[1]	106
Revenue recognized		(57)	[1]	$ (60)
Other	[2]	$ (46)
[1]	Primarily related to Hilton Honors, our guest loyalty program.
[2]	Primarily the result of changes in estimated transaction prices for our performance obligations related to points issued under Hilton Honors, which had no effect on revenues.

Revenues from Contracts with _4

Revenues from Contracts with Customers - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019		Mar. 31, 2018
Revenue from Contract with Customer [Abstract]
Revenue recognized	$ 57	[1]	$ 60
Loyalty Program Revenues [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 459
Expected timing of satisfaction of remaining performance obligations	2 years
Application, initiation and licensing fees [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining performance obligations	$ 604
[1]	Primarily related to Hilton Honors, our guest loyalty program.

Consolidated Variable Interes_3

Consolidated Variable Interest Entities - Schedule of Consolidated Variable Interest Entities (Details) - USD ($) $ in Millions		Mar. 31, 2019	Dec. 31, 2018
Variable Interest Entity [Line Items]
Cash and cash equivalents		$ 382	$ 403
Property and equipment, net		412	367
Deferred income tax assets		146	90
Other non-current assets		220	239
Accounts payable, accrued expenses and other		1,679	1,549
Other long-term liabilities		851	863
Finance lease liabilities		255
Consolidated VIEs [member]
Variable Interest Entity [Line Items]
Cash and cash equivalents		66	71
Property and equipment, net		69	68
Deferred income tax assets		52	53
Other non-current assets		58	58
Accounts payable, accrued expenses and other		41	41
Long-term debt	[1]	201	205
Other long-term liabilities		15	15
Finance lease liabilities		$ 183	$ 187
[1]	Includes finance lease liabilities of $183 million and $187 million as of March 31, 2019 and December 31, 2018, respectively.

Consolidated Variable Interes_4

Consolidated Variable Interest Entities - Additional Information (Details) - Entity	Mar. 31, 2019	Dec. 31, 2018
Variable Interest Entity [Line Items]
Number of consolidated variable interest entities	3	3
Hotel VIEs [member]
Variable Interest Entity [Line Items]
Number of consolidated variable interest entities	2	2
Management company [member]
Variable Interest Entity [Line Items]
Number of consolidated variable interest entities	1	1

Amortizing Intangible Assets -

Amortizing Intangible Assets - Schedule of Finite Lived Intangible Assets (Details) - USD ($) $ in Millions		Mar. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Management and franchise contracts, gross		$ 2,882	$ 2,861
Other intangible assets, gross		1,188	1,167
Management and franchise contracts, accumulated amortization		(2,041)	(1,989)
Other intangible assets, accumulated amortization		(780)	(752)
Management and franchise contracts, net		841	872
Other intangible assets, net		408	415
Management and franchise contracts recorded at merger [member]
Finite-Lived Intangible Assets [Line Items]
Management and franchise contracts, gross	[1]	2,231	2,228
Management and franchise contracts, accumulated amortization	[1]	(1,917)	(1,873)
Management and franchise contracts, net	[1]	314	355
Contract acquisition costs [member]
Finite-Lived Intangible Assets [Line Items]
Management and franchise contracts, gross		542	525
Management and franchise contracts, accumulated amortization		(108)	(101)
Management and franchise contracts, net		434	424
Development commissions [member]
Finite-Lived Intangible Assets [Line Items]
Management and franchise contracts, gross		109	108
Management and franchise contracts, accumulated amortization		(16)	(15)
Management and franchise contracts, net		93	93
Leases [member]
Finite-Lived Intangible Assets [Line Items]
Other intangible assets, gross	[1]	290	288
Other intangible assets, accumulated amortization	[1]	(165)	(161)
Other intangible assets, net	[1]	125	127
Capitalized software [member]
Finite-Lived Intangible Assets [Line Items]
Other intangible assets, gross		522	503
Other intangible assets, accumulated amortization		(339)	(321)
Other intangible assets, net		183	182
Hilton Honors intangible [member]
Finite-Lived Intangible Assets [Line Items]
Other intangible assets, gross	[1]	338	338
Other intangible assets, accumulated amortization	[1]	(242)	(236)
Other intangible assets, net	[1]	96	102
Other [member]
Finite-Lived Intangible Assets [Line Items]
Other intangible assets, gross		38	38
Other intangible assets, accumulated amortization		(34)	(34)
Other intangible assets, net		$ 4	$ 4
[1]	Represents intangible assets that were initially recorded at their fair value as part of the October 24, 2007 transaction whereby we became a wholly owned subsidiary of affiliates of The Blackstone Group L.P (the "Merger").

Amortizing Intangible Assets _2

Amortizing Intangible Assets - Amortization of Amortizing Intangible Assets (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018
Depreciation and amortization [member]
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	[1]	$ 70	$ 69
Depreciation and amortization [member] | Intangible assets recorded at fair value at the time of the Merger [member]
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets		51	51
Franchise and licensing fee and base and other management fee revenues [member]
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets		$ 7	$ 7
[1]	Includes amortization expense of $51 million for the three months ended March 31, 2019 and 2018 associated with assets that were initially recorded at their fair value at the time of the Merger.

Amortizing Intangible Assets _3

Amortizing Intangible Assets - Schedule of Future Amortization (Details) $ in Millions	Mar. 31, 2019USD ($)
Depreciation and amortization [member]
Finite-Lived Intangible Assets [Line Items]
2019 (remaining)	$ 212
2020	240
2021	102
2022	71
2023	52
Thereafter	138
Amortizing intangible assets, net	815
Franchise and licensing fee and base and other management fee revenues [member]
Finite-Lived Intangible Assets [Line Items]
2019 (remaining)	20
2020	25
2021	25
2022	23
2023	22
Thereafter	319
Amortizing intangible assets, net	$ 434

Debt - Long-term Debt (Details)

Debt - Long-term Debt (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Long-term debt, gross	$ 7,441	$ 7,361
Unamortized deferred financing costs and discount	(76)	(79)
Current maturities of long-term debt	(35)	(16)
Long-term debt	7,330	7,266
Senior notes due 2024 [member]
Debt Instrument [Line Items]
Long-term debt, gross	$ 1,000	1,000
Debt instrument, interest rate, stated percentage	4.25%
Senior notes due 2025 [member]
Debt Instrument [Line Items]
Long-term debt, gross	$ 900	900
Debt instrument, interest rate, stated percentage	4.625%
Senior notes due 2026 [Member]
Debt Instrument [Line Items]
Long-term debt, gross	$ 1,500	1,500
Debt instrument, interest rate, stated percentage	5.125%
Senior notes due 2027 [member]
Debt Instrument [Line Items]
Long-term debt, gross	$ 600	600
Debt instrument, interest rate, stated percentage	4.875%
Senior secured revolving credit facility [member]
Debt Instrument [Line Items]
Long-term debt, gross	$ 50	0
Debt instrument, interest rate, stated percentage	3.98%
Senior secured term loan facility due 2023 [member]
Debt Instrument [Line Items]
Long-term debt, gross	$ 3,119	3,119
Debt instrument, interest rate, stated percentage	4.24%
Finance lease liabilities [member]
Debt Instrument [Line Items]
Long-term debt, gross	$ 255	225
Debt instrument, weighted average interest rate	5.84%
Other debt [member]
Debt Instrument [Line Items]
Long-term debt, gross	$ 17	$ 17
Debt instrument, weighted average interest rate	3.08%

Debt - Additional Information (

Debt - Additional Information (Details) - USD ($) $ in Millions	1 Months Ended
	May 01, 2019	Mar. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Long-term debt, gross		$ 7,441	$ 7,361
Senior notes due 2024 [member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage		4.25%
Long-term debt, gross		$ 1,000	1,000
Senior notes due 2025 [member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage		4.625%
Long-term debt, gross		$ 900	900
Senior notes due 2026 [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage		5.125%
Long-term debt, gross		$ 1,500	1,500
Senior notes due 2027 [member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage		4.875%
Long-term debt, gross		$ 600	600
Senior secured revolving credit facility [member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage		3.98%
Revolving credit facility, maximum borrowing capacity		$ 1,000
Long-term debt, gross		50	$ 0
Letters of credit outstanding, amount		59
Revolving credit facility, remaining borrowing capacity		$ 891
Subsequent Event [Member] | Senior secured revolving credit facility [member]
Debt Instrument [Line Items]
Proceeds from revolving credit facility	$ 125

Debt - Debt Maturities (Details

Debt - Debt Maturities (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
2019 (remaining)	$ 27
2020	32
2021	74
2022	18
2023	3,139
Thereafter	4,151
Long-term debt, gross	$ 7,441	$ 7,361

Fair Value Measurements - Sche

Fair Value Measurements - Schedule by Balance Sheet Grouping (Details) - USD ($) $ in Millions		Mar. 31, 2019	Dec. 31, 2018
Level 1 [member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	[1]	$ 4,047	$ 3,809
Level 2 [member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents		20	87
Restricted cash equivalents		17	18
Interest Rate Derivative Assets, at Fair Value			16
Interest Rate Derivative Liabilities, at Fair Value		4
Level 3 [member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	[1]	3,162	3,039
Carrying value [member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash equivalents		20	87
Restricted cash equivalents		17	18
Interest Rate Derivative Assets, at Fair Value			16
Long-term debt	[1]	7,093	$ 7,040
Interest Rate Derivative Liabilities, at Fair Value		$ 4
[1]	The carrying values include unamortized deferred financing costs and discount. The carrying values and fair values exclude finance lease liabilities and other debt.

Leases Additional Information (

Leases Additional Information (Details)	Mar. 31, 2019Hotel
Leases [Abstract]
Hotels under operating leases	53
Hotels under finance leases	6
Number of finance leases that were the liabilities of VIEs	2

Leases Supplemental Balance She

Leases Supplemental Balance Sheet Information Related to Leases (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Finance leases [Abstract]
Property and equipment, net	$ 55
Current maturities of long-term debt	35
Long-term debt	$ 220
Weighted average remaining lease term, finance leases	9 years 2 months
Weighted average discount rate, finance leases	5.84%
Leases, Operating [Abstract]
Operating lease right-of-use assets	$ 916	$ 0
Accounts payable, accrued expenses and other	131
Operating lease liabilities	$ 1,103	$ 0
Weighted average remaining lease term, operating leases	13 years 4 months
Weighted average discount rate, operating leases	3.74%

Leases Components of Lease Expe

Leases Components of Lease Expense (Details) $ in Millions	3 Months Ended
	Mar. 31, 2019USD ($)
Lease, Cost [Abstract]
Operating lease expense for fixed payments	$ 37
Finance lease expense, amortization of ROU assets	8
Finance lease expense, interest on lease liabilities	4
Variable lease expense	$ 19	[1]
[1]	Includes amounts related to operating leases and interest payments on finance leases.

Leases Supplemental Cash Flow I

Leases Supplemental Cash Flow Information Related to Leases (Details) $ in Millions	3 Months Ended
	Mar. 31, 2019USD ($)
Cash paid for amounts included in the measurement of lease liabilities [Abstract]
Operating cash flows from operating leases	$ 48
Financing cash flows from finance leases	11
ROU assets obtained in exchange for lease liabilities in non-cash transactions [Abstract]
Operating leases	0	[1]
Finance leases	$ 42
[1]	Amount is less than $1 million.

Leases Future Minimum Lease Pay

Leases Future Minimum Lease Payments (Details) $ in Millions	Mar. 31, 2019USD ($)
Finance Lease Liabilities, Payments, Due [Abstract]
Finance leases, 2019 (remaining)	$ 38
Finance leases, 2020	45
Finance leases, 2021	36
Finance leases, 2022	29
Finance leases, 2023	29
Finance leases, thereafter	162
Finance leases, total minimum lease payments	339
Less: amount representing interest, finance leases	(84)
Finance lease liabilities	255
Operating Lease Liabilities, Payments Due [Abstract]
Operating leases, 2019 (remaining)	132
Operating leases, 2020	174
Operating leases, 2021	160
Operating leases, 2022	136
Operating leases, 2023	121
Operating leases, thereafter	889
Operating leases, total minimum lease payments	1,612
Less: amount representing interest, operating leases	(378)
Operating lease liabilities	$ 1,234

Income Taxes - Additional Info

Income Taxes - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Unrecognized tax benefits	$ 320	$ 318
Accrual for interest and penalties	42	40
Unrecognized tax benefits that would impact effective tax rate	310	$ 310
Income tax examination, estimate of possible loss	817
Accrual related to IRS proposed additional tax owed	$ 54

Share-Based Compensation - Addi

Share-Based Compensation - Additional Information (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense	$ 34	$ 28
Unrecognized compensation costs related to unvested awards	$ 231
Unrecognized compensation costs related to unvested awards, weighted-average period	2 years
Shares of common stock reserved for future issuance, in millions	14.2
Restricted stock units (RSUs) [member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, in millions	0.9
Weighted average grant date fair value, granted	$ 83.10
Employee stock option [member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Options granted in period, in millions	0.8
Options granted in period, weighted average exercise price	$ 83.10
Options, expiration period	10 years
Options, grants in period, grant date fair value	$ 21.08
Exercisable, in millions	1.7
Performance shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, in millions	0.4
Weighted average grant date fair value, granted	$ 83.10
EBITDA CAGR [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance shares achievement percentage	50 percent of the awards subject to achievement based on the compound annual growth rate ("CAGR") of the Company's adjusted earnings before interest expense, a provision for income taxes and depreciation and amortization ("Adjusted EBITDA")
Free cash flow CAGR [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance shares achievement percentage	50 percent of the awards subject to achievement based on the Company’s free cash flow ("FCF") per share CAGR
Minimum [Member] | Performance shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rights, percentage	0.00%
Maximum [Member] | Performance shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rights, percentage	200.00%
Target [Member] | Performance shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rights, percentage	100.00%
Minimum [Member] | Restricted stock units (RSUs) [member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	2 years
Maximum [Member] | Restricted stock units (RSUs) [member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years

Share-Based Compensation - Sche

Share-Based Compensation - Schedule of Stock Options Valuation Assumptions (Details) - Employee stock option [member]	3 Months Ended
	Mar. 31, 2019Rate
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility	23.51%	[1]
Dividend yield	0.81%	[2]
Risk-free rate	2.47%	[3]
Expected term (in years)	6 years	[4]
[1]	Estimated using historical movement of Hilton's stock price.
[2]	Estimated based on the quarterly dividend and the three-month average stock price at the date of grant.
[3]	Based on the yields of U.S. Department of Treasury instruments with similar expected lives.
[4]	Estimated using the average of the vesting periods and the contractual term of the options.

Earnings Per Share (Details)

Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Basic EPS:
Net income attributable to Hilton stockholders	$ 158	$ 161
Weighted average shares outstanding	293	316
Basic EPS	$ 0.54	$ 0.51
Diluted EPS:
Net income attributable to Hilton stockholders	$ 158	$ 161
Weighted average shares outstanding	295	319
Diluted EPS	$ 0.54	$ 0.51
Antidilutive securities excluded from the computation of EPS	1 million	Less than 1 million

Stockholders' Equity and Accu_3

Stockholders' Equity and Accumulated Other Comprehensive Loss - Schedule of Stockholders' Equity (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Jan. 01, 2019	Dec. 31, 2018	Dec. 31, 2017
Class of Stock [Line Items]
Beginning Balance, shares	294,815,890
Beginning Balance	$ 558	$ 1,691
Equity attributable to Hilton stockholders	100			$ 551
Equity attributable to noncontrolling interests	(8)			(7)
Net income attributable to Hilton stockholders	158	161
Net income attributable to noncontrolling interests	1	2
Net income	159	163
Other comprehensive income (loss)	(16)	61
Dividends	$ (43)	(48)
Repurchases of common stock, shares	(3,900,000)
Repurchases of common stock	$ (296)	(110)
Share-based compensation	$ 2	(10)
Ending Balance, shares	291,720,450
Ending Balance	$ 108	$ 1,747
Common stock [member]
Class of Stock [Line Items]
Beginning Balance, shares	295,000,000	317,000,000
Equity attributable to Hilton stockholders	$ 3	$ 3		3	$ 3
Repurchases of common stock, shares	(4,000,000)	(1,000,000)
Share-based compensation, shares	1,000,000	1,000,000
Ending Balance, shares	292,000,000	317,000,000
Treasury stock [member]
Class of Stock [Line Items]
Equity attributable to Hilton stockholders	$ (2,921)	$ (1,001)		(2,625)	(891)
Repurchases of common stock	(296)	(110)
Additional paid-in capital [member]
Class of Stock [Line Items]
Equity attributable to Hilton stockholders	10,374	10,288		10,372	10,298
Share-based compensation	2	(10)
Accumulated deficit [member]
Class of Stock [Line Items]
Equity attributable to Hilton stockholders	(6,558)	(6,868)		(6,417)	(6,981)
Net income attributable to Hilton stockholders	158	161
Dividends	(43)	(48)
Accumulated other comprehensive loss [member]
Class of Stock [Line Items]
Equity attributable to Hilton stockholders	(798)	(680)		(782)	(741)
Other comprehensive income (loss) attributable to Hilton stockholders	(16)	61
Noncontrolling interest [member]
Class of Stock [Line Items]
Equity attributable to noncontrolling interests	8	5		$ 7	$ 3
Net income attributable to noncontrolling interests	1	$ 2
Accounting Standards Update 2016-02 [Member]
Class of Stock [Line Items]
Cumulative effect of the adoption of an ASU	(256)		$ 256
Accounting Standards Update 2016-02 [Member] | Accumulated deficit [member]
Class of Stock [Line Items]
Cumulative effect of the adoption of an ASU	$ (256)

Stockholders' Equity and Accu_4

Stockholders' Equity and Accumulated Other Comprehensive Loss - Additional Information (Details) - USD ($) shares in Millions, $ in Billions	3 Months Ended
	Mar. 31, 2019	Feb. 01, 2019
Equity, Class of Treasury Stock [Line Items]
Repurchases of common stock, shares	3.9
Stock repurchase program, remaining authorized repurchase amount	$ 1.8
Additional amount authorized for repurchase [member]
Equity, Class of Treasury Stock [Line Items]
Additional amount authorized for repurchase		$ 1.5

Stockholders' Equity and Accu_5

Stockholders' Equity and Accumulated Other Comprehensive Loss - Schedule of Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance		$ (782)
Ending balance		(798)
Currency translation adjustment [member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	[1]	(545)	$ (513)
Other comprehensive income (loss) before reclassifications	[1]	(3)	32
Amounts reclassified from accumulated other comprehensive loss	[1]	0	0
Net current period other comprehensive income (loss)	[1]	(3)	32
Ending balance	[1]	(548)	(481)
Pension liability adjustment [member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance		(260)	(229)
Other comprehensive income (loss) before reclassifications		0	(1)
Amounts reclassified from accumulated other comprehensive loss	[2]	2	2
Tax benefit on pension liability adjustment reclassifications	[2]	1	1
Net current period other comprehensive income (loss)		2	1
Ending balance		(258)	(228)
Cash flow hedge adjustment [member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance		23	1
Other comprehensive income (loss) before reclassifications		(13)	24
Amounts reclassified from accumulated other comprehensive loss	[3]	(2)	4
Tax benefit (expense) on cash flow hedge adjustment reclassifications	[3]	1	(1)
Net current period other comprehensive income (loss)		(15)	28
Ending balance		8	29
Accumulated other comprehensive loss [member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance		(782)	(741)
Other comprehensive income (loss) before reclassifications		(16)	55
Amounts reclassified from accumulated other comprehensive loss		0	6
Net current period other comprehensive income (loss)		(16)	61
Ending balance		$ (798)	$ (680)
[1]	Includes net investment hedges and intra-entity foreign currency transactions that are of a long-term investment nature.
[2]	Amounts reclassified include the amortization of prior service cost and the amortization of net loss that were included in our computation of net periodic pension cost. They were recognized in other non-operating income, net in our condensed consolidated statements of operations and are presented net of a tax benefit of $1 million for the three months ended March 31, 2019 and 2018.
[3]	Amounts reclassified relate to designated interest rate swaps, as well as interest rate swaps that were dedesignated and settled. The amounts were recognized in interest expense in our condensed consolidated statements of operations and are presented net of a tax expense of $1 million and a tax benefit of $1 million for the three months ended March 31, 2019 and 2018, respectively.

Business Segments - Hotel Prope

Business Segments - Hotel Properties by Segment (Detail)	3 Months Ended
	Mar. 31, 2019SegmentRoomHotel
Segment Reporting Information [Line Items]
Number of operating segments | Segment	2
Management and franchise [member]
Segment Reporting Information [Line Items]
Number of managed hotels	689
Number of franchised hotels	4,947
Number of managed and franchised hotel rooms | Room	893,494
Ownership [member]
Segment Reporting Information [Line Items]
Number of owned and leased hotel properties	68
Number of owned and leased hotel rooms | Room	21,139
Number of wholly owned and leased hotels	59
Number of non-wholly owned hotels	1
Number of hotels leased by consolidated VIEs	2
Number of hotels owned or leased by unconsolidated affiliates	6

Business Segments - Reconciliat

Business Segments - Reconciliation of Revenue from Segment Amounts to Consolidated Amounts (Detail) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues		$ 2,204	$ 2,074
Amortization of contract acquisition costs		(7)	(7)
Franchise and licensing fees in segment revenues [member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues		385	333
Base and other management fees in segment revenues [member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	[1]	92	90
Incentive management fees in segment revenues [member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues		55	55
Management and franchise [member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues		532	478
Ownership [member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues		312	334
Operating segments [member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues		844	812
Intersegment eliminations [member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	[1]	(8)	(8)
Other revenues [member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues		26	23
Direct reimbursements from managed and franchised properties [member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	[2]	775	699
Indirect reimbursements from managed and franchised properties [member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	[2]	$ 574	$ 555
[1]	Includes management, royalty and IP fees charged to our ownership segment by our management and franchise segment, which were eliminated in our condensed consolidated statements of operations.
[2]	Included in other revenues from managed and franchised properties in our condensed consolidated statements of operations.

Business Segments - Reconcili_2

Business Segments - Reconciliation of Segment Operating Income to Income Before Income Taxes (Detail) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating income		$ 312	$ 279
Amortization of contract acquisition costs		(7)	(7)
Other revenues, less other expenses		6	9
Net other expenses from managed and franchised properties		(34)	(21)
Depreciation and amortization		(84)	(82)
General and administrative		(107)	(104)
Interest expense		(98)	(83)
Gain on foreign currency transactions		0	11
Other non-operating income, net		4	14
Income before income taxes		218	221
Management and franchise [member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating income	[1]	532	478
Ownership [member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating income	[1]	6	6
Operating segments [member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating income		$ 538	$ 484
[1]	Includes management, royalty and IP fees charged to our ownership segment by our management and franchise segment, which were eliminated in our condensed consolidated statements of operations.

Business Segments - Schedule of

Business Segments - Schedule of Assets by Segment (Detail) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 14,853	$ 13,995
Corporate and other [member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	1,751	1,706
Management and franchise [member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	11,365	11,362
Ownership [member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 1,737	$ 927

Business Segments - Schedule _2

Business Segments - Schedule of Capital Expenditures by Segment (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Segment Reporting, Capital Expenditure Reconciling Item [Line Items]
Capital expenditures for property and equipment	$ 23	$ 10
Corporate and other [member]
Segment Reporting, Capital Expenditure Reconciling Item [Line Items]
Capital expenditures for property and equipment	12	3
Ownership [member]
Segment Reporting, Capital Expenditure Reconciling Item [Line Items]
Capital expenditures for property and equipment	$ 11	$ 7

Commitments and Contingencies (

Commitments and Contingencies (Details) $ in Millions	3 Months Ended
	Mar. 31, 2019USD ($)Contract	Dec. 31, 2018USD ($)Contract
Commitments and Contingencies [Line Items]
Current liabilities	$ 2,794	$ 2,615
Marketing, sales, and brand program commitments	355	375
Commitments to fund loans
Commitments and Contingencies [Line Items]
Commitment to fund loans	29
Commitment to fund loans, 2019	19
Commitment to fund loans, 2020	$ 10
Performance guarantees
Commitments and Contingencies [Line Items]
Number of contracts with guarantees | Contract	5
Guarantees, expiration	December 2019 to 2030
Guarantees, possible cash outlays	$ 36
Current liabilities	$ 12	$ 12
Number of hotels with performance guarantees with recorded liabilities | Contract	1	1
Debt guarantee
Commitments and Contingencies [Line Items]
Number of contracts with guarantees | Contract	1
Guarantees, expiration	February 2022 with two one-year extension options
Guarantees, possible cash outlays	$ 20

Condensed Consolidating Guara_3

Condensed Consolidating Guarantor Financial Information - Condensed Balance Sheet (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017
Current Assets:
Cash and cash equivalents	$ 382	$ 403
Restricted cash and cash equivalents	79	81
Accounts receivable, net	1,102	1,150
Intercompany receivables	0	0
Prepaid expenses	140	160
Other	173	189
Total current assets	1,876	1,983
Intangibles and Other Assets:
Investments in subsidiaries	0	0
Goodwill	5,162	5,160
Brands	4,872	4,869
Management and franchise contracts, net	841	872
Other intangible assets, net	408	415
Operating lease right-of-use assets	916	0
Property and equipment, net	412	367
Deferred income tax assets	146	90
Other	220	239
Total intangibles and other assets	12,977	12,012
Total assets	14,853	13,995
Current Liabilities:
Accounts payable, accrued expenses and other	1,679	1,549
Current maturities of long-term debt	35	16
Current portion of deferred revenues	323	350
Intercompany payables	0	0
Total current liabilities	2,794	2,615
Long-term debt	7,330	7,266
Operating lease liabilities	1,103	0
Deferred revenues	830	826
Deferred income tax liabilities	850	898
Other	851	863
Total liabilities	14,745	13,437
Equity:
Total Hilton stockholders' equity	100	551
Noncontrolling interests	8	7
Total equity	108	558	$ 1,747	$ 1,691
Total liabilities and equity	14,853	13,995
Eliminations [member]
Current Assets:
Cash and cash equivalents	0	0
Restricted cash and cash equivalents	0	0
Accounts receivable, net	0	0
Intercompany receivables	(40)	(40)
Prepaid expenses	(5)	(9)
Other	0	(3)
Total current assets	(45)	(52)
Intangibles and Other Assets:
Investments in subsidiaries	(12,492)	(14,175)
Goodwill	0	0
Brands	0	0
Management and franchise contracts, net	0	0
Other intangible assets, net	0	0
Operating lease right-of-use assets	0
Property and equipment, net	0	0
Deferred income tax assets	(94)	(98)
Other	0	0
Total intangibles and other assets	(12,586)	(14,273)
Total assets	(12,631)	(14,325)
Current Liabilities:
Accounts payable, accrued expenses and other	0	(3)
Current maturities of long-term debt	0	0
Current portion of deferred revenues	(5)	(9)
Intercompany payables	(40)	(40)
Total current liabilities	(45)	(52)
Long-term debt	0	0
Operating lease liabilities	0
Deferred revenues	0	0
Deferred income tax liabilities	(94)	(98)
Other	0	0
Total liabilities	(139)	(150)
Equity:
Total Hilton stockholders' equity	(12,492)	(14,175)
Noncontrolling interests	0	0
Total equity	(12,492)	(14,175)
Total liabilities and equity	(12,631)	(14,325)
HOC [Member]
Current Assets:
Cash and cash equivalents	3	3
Restricted cash and cash equivalents	34	34
Accounts receivable, net	10	10
Intercompany receivables	0	0
Prepaid expenses	28	52
Other	1	1
Total current assets	76	100
Intangibles and Other Assets:
Investments in subsidiaries	7,515	7,930
Goodwill	0	0
Brands	0	0
Management and franchise contracts, net	0	0
Other intangible assets, net	0	0
Operating lease right-of-use assets	33
Property and equipment, net	63	27
Deferred income tax assets	89	94
Other	32	33
Total intangibles and other assets	7,732	8,084
Total assets	7,808	8,184
Current Liabilities:
Accounts payable, accrued expenses and other	187	229
Current maturities of long-term debt	19	0
Current portion of deferred revenues	73	106
Intercompany payables	40	40
Total current liabilities	319	375
Long-term debt	2,484	2,467
Operating lease liabilities	40
Deferred revenues	0	0
Deferred income tax liabilities	0	0
Other	198	211
Total liabilities	3,041	3,053
Equity:
Total Hilton stockholders' equity	4,767	5,131
Noncontrolling interests	0	0
Total equity	4,767	5,131
Total liabilities and equity	7,808	8,184
HWF Issuers [Member]
Current Assets:
Cash and cash equivalents	0	0
Restricted cash and cash equivalents	0	0
Accounts receivable, net	0	0
Intercompany receivables	0	0
Prepaid expenses	0	0
Other	2	1
Total current assets	2	1
Intangibles and Other Assets:
Investments in subsidiaries	4,767	5,131
Goodwill	0	0
Brands	0	0
Management and franchise contracts, net	0	0
Other intangible assets, net	0	0
Operating lease right-of-use assets	0
Property and equipment, net	0	0
Deferred income tax assets	0	0
Other	6	23
Total intangibles and other assets	4,773	5,154
Total assets	4,775	5,155
Current Liabilities:
Accounts payable, accrued expenses and other	38	19
Current maturities of long-term debt	0	0
Current portion of deferred revenues	0	0
Intercompany payables	0	0
Total current liabilities	38	19
Long-term debt	4,625	4,573
Operating lease liabilities	0
Deferred revenues	0	0
Deferred income tax liabilities	3	6
Other	4	0
Total liabilities	4,670	4,598
Equity:
Total Hilton stockholders' equity	105	557
Noncontrolling interests	0	0
Total equity	105	557
Total liabilities and equity	4,775	5,155
Parent [Member]
Current Assets:
Cash and cash equivalents	0	0
Restricted cash and cash equivalents	0	0
Accounts receivable, net	0	0
Intercompany receivables	0	0
Prepaid expenses	0	0
Other	0	0
Total current assets	0	0
Intangibles and Other Assets:
Investments in subsidiaries	105	557
Goodwill	0	0
Brands	0	0
Management and franchise contracts, net	0	0
Other intangible assets, net	0	0
Operating lease right-of-use assets	0
Property and equipment, net	0	0
Deferred income tax assets	4	4
Other	0	0
Total intangibles and other assets	109	561
Total assets	109	561
Current Liabilities:
Accounts payable, accrued expenses and other	9	10
Current maturities of long-term debt	0	0
Current portion of deferred revenues	0	0
Intercompany payables	0	0
Total current liabilities	9	10
Long-term debt	0	0
Operating lease liabilities	0
Deferred revenues	0	0
Deferred income tax liabilities	0	0
Other	0	0
Total liabilities	9	10
Equity:
Total Hilton stockholders' equity	100	551
Noncontrolling interests	0	0
Total equity	100	551
Total liabilities and equity	109	561
Guarantor Subsidiaries [Member]
Current Assets:
Cash and cash equivalents	31	17
Restricted cash and cash equivalents	15	15
Accounts receivable, net	818	735
Intercompany receivables	0	0
Prepaid expenses	55	37
Other	21	36
Total current assets	940	840
Intangibles and Other Assets:
Investments in subsidiaries	105	557
Goodwill	3,824	3,824
Brands	4,405	4,404
Management and franchise contracts, net	527	556
Other intangible assets, net	282	287
Operating lease right-of-use assets	11
Property and equipment, net	67	65
Deferred income tax assets	0	0
Other	22	22
Total intangibles and other assets	9,243	9,715
Total assets	10,183	10,555
Current Liabilities:
Accounts payable, accrued expenses and other	706	529
Current maturities of long-term debt	0	0
Current portion of deferred revenues	240	239
Intercompany payables	0	0
Total current liabilities	1,703	1,468
Long-term debt	0	0
Operating lease liabilities	12
Deferred revenues	763	762
Deferred income tax liabilities	941	962
Other	95	93
Total liabilities	4,501	4,254
Equity:
Total Hilton stockholders' equity	5,682	6,301
Noncontrolling interests	0	0
Total equity	5,682	6,301
Total liabilities and equity	10,183	10,555
Non-Guarantor Subsidiaries [Member]
Current Assets:
Cash and cash equivalents	348	383
Restricted cash and cash equivalents	30	32
Accounts receivable, net	274	405
Intercompany receivables	40	40
Prepaid expenses	62	80
Other	149	154
Total current assets	903	1,094
Intangibles and Other Assets:
Investments in subsidiaries	0	0
Goodwill	1,338	1,336
Brands	467	465
Management and franchise contracts, net	314	316
Other intangible assets, net	126	128
Operating lease right-of-use assets	872
Property and equipment, net	282	275
Deferred income tax assets	147	90
Other	160	161
Total intangibles and other assets	3,706	2,771
Total assets	4,609	3,865
Current Liabilities:
Accounts payable, accrued expenses and other	739	765
Current maturities of long-term debt	16	16
Current portion of deferred revenues	15	14
Intercompany payables	0	0
Total current liabilities	770	795
Long-term debt	221	226
Operating lease liabilities	1,051
Deferred revenues	67	64
Deferred income tax liabilities	0	28
Other	554	559
Total liabilities	2,663	1,672
Equity:
Total Hilton stockholders' equity	1,938	2,186
Noncontrolling interests	8	7
Total equity	1,946	2,193
Total liabilities and equity	4,609	3,865
Guest Loyalty Program [Member]
Current Liabilities:
Current portion of liability for guest loyalty program	757	700
Liability for guest loyalty program	987	969
Guest Loyalty Program [Member] | Eliminations [member]
Current Liabilities:
Current portion of liability for guest loyalty program	0	0
Liability for guest loyalty program	0	0
Guest Loyalty Program [Member] | HOC [Member]
Current Liabilities:
Current portion of liability for guest loyalty program	0	0
Liability for guest loyalty program	0	0
Guest Loyalty Program [Member] | HWF Issuers [Member]
Current Liabilities:
Current portion of liability for guest loyalty program	0	0
Liability for guest loyalty program	0	0
Guest Loyalty Program [Member] | Parent [Member]
Current Liabilities:
Current portion of liability for guest loyalty program	0	0
Liability for guest loyalty program	0	0
Guest Loyalty Program [Member] | Guarantor Subsidiaries [Member]
Current Liabilities:
Current portion of liability for guest loyalty program	757	700
Liability for guest loyalty program	987	969
Guest Loyalty Program [Member] | Non-Guarantor Subsidiaries [Member]
Current Liabilities:
Current portion of liability for guest loyalty program	0	0
Liability for guest loyalty program	$ 0	$ 0

Condensed Consolidating Guara_4

Condensed Consolidating Guarantor Financial Information - Condensed Income Statement (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Condensed Income Statements, Captions [Line Items]
Revenues	$ 2,204	$ 2,074
Depreciation and amortization	84	82
General and administrative	107	104
Other expenses	20	14
Total expenses excluding reimbursable expenses	509	520
Total expenses	1,892	1,795
Operating income	312	279
Interest expense	(98)	(83)
Gain (loss) on foreign currency transactions	0	11
Other non-operating income, net	4	14
Income (loss) before income taxes and equity in earnings from subsidiaries	218	221
Income tax benefit (expense)	(59)	(58)
Income (loss) before equity in earnings from subsidiaries	159	163
Equity in earnings from subsidiaries	0	0
Net income	159	163
Net income attributable to noncontrolling interests	(1)	(2)
Net income attributable to Hilton stockholders	158	161
Comprehensive income	143	224
Comprehensive income attributable to noncontrolling interests	(1)	(2)
Comprehensive income attributable to Hilton stockholders	142	222
Franchise and licensing fees [member]
Condensed Income Statements, Captions [Line Items]
Revenues	382	331
Base and other management fees [member]
Condensed Income Statements, Captions [Line Items]
Revenues	80	77
Incentive management fees [member]
Condensed Income Statements, Captions [Line Items]
Revenues	55	55
Owned and leased hotels [member]
Condensed Income Statements, Captions [Line Items]
Revenues	312	334
Expenses	298	320
Other revenues [member]
Condensed Income Statements, Captions [Line Items]
Revenues	26	23
Total revenues excluding reimbursable revenues [member]
Condensed Income Statements, Captions [Line Items]
Revenues	855	820
Other revenues from managed and franchised properties [member]
Condensed Income Statements, Captions [Line Items]
Revenues	1,349	1,254
Other expenses from managed and franchised properties [member]
Condensed Income Statements, Captions [Line Items]
Expenses	1,383	1,275
Eliminations [member]
Condensed Income Statements, Captions [Line Items]
Revenues	(5)	(9)
Depreciation and amortization	0	0
General and administrative	(6)	(4)
Other expenses	1	(4)
Total expenses excluding reimbursable expenses	(5)	(8)
Total expenses	(5)	(8)
Operating income	0	(1)
Interest expense	0	1
Gain (loss) on foreign currency transactions	0	0
Other non-operating income, net	0	0
Income (loss) before income taxes and equity in earnings from subsidiaries	0	0
Income tax benefit (expense)	0	0
Income (loss) before equity in earnings from subsidiaries	0	0
Equity in earnings from subsidiaries	(751)	(768)
Net income	(751)	(768)
Net income attributable to noncontrolling interests	0	0
Net income attributable to Hilton stockholders	(751)	(768)
Comprehensive income	(735)	(829)
Comprehensive income attributable to noncontrolling interests	0	0
Comprehensive income attributable to Hilton stockholders	(735)	(829)
Eliminations [member] | Franchise and licensing fees [member]
Condensed Income Statements, Captions [Line Items]
Revenues	(5)	(4)
Eliminations [member] | Base and other management fees [member]
Condensed Income Statements, Captions [Line Items]
Revenues	0	0
Eliminations [member] | Incentive management fees [member]
Condensed Income Statements, Captions [Line Items]
Revenues	0	0
Eliminations [member] | Owned and leased hotels [member]
Condensed Income Statements, Captions [Line Items]
Revenues	0	0
Expenses	0	0
Eliminations [member] | Other revenues [member]
Condensed Income Statements, Captions [Line Items]
Revenues	0	(5)
Eliminations [member] | Total revenues excluding reimbursable revenues [member]
Condensed Income Statements, Captions [Line Items]
Revenues	(5)	(9)
Eliminations [member] | Other revenues from managed and franchised properties [member]
Condensed Income Statements, Captions [Line Items]
Revenues	0	0
Eliminations [member] | Other expenses from managed and franchised properties [member]
Condensed Income Statements, Captions [Line Items]
Expenses	0	0
HOC [Member]
Condensed Income Statements, Captions [Line Items]
Revenues	136	90
Depreciation and amortization	2	1
General and administrative	82	73
Other expenses	1	2
Total expenses excluding reimbursable expenses	85	76
Total expenses	157	122
Operating income	(21)	(32)
Interest expense	(35)	(13)
Gain (loss) on foreign currency transactions	2	(3)
Other non-operating income, net	0	3
Income (loss) before income taxes and equity in earnings from subsidiaries	(54)	(45)
Income tax benefit (expense)	13	13
Income (loss) before equity in earnings from subsidiaries	(41)	(32)
Equity in earnings from subsidiaries	238	239
Net income	197	207
Net income attributable to noncontrolling interests	0	0
Net income attributable to Hilton stockholders	197	207
Comprehensive income	198	207
Comprehensive income attributable to noncontrolling interests	0	0
Comprehensive income attributable to Hilton stockholders	198	207
HOC [Member] | Franchise and licensing fees [member]
Condensed Income Statements, Captions [Line Items]
Revenues	61	44
HOC [Member] | Base and other management fees [member]
Condensed Income Statements, Captions [Line Items]
Revenues	0	0
HOC [Member] | Incentive management fees [member]
Condensed Income Statements, Captions [Line Items]
Revenues	0	0
HOC [Member] | Owned and leased hotels [member]
Condensed Income Statements, Captions [Line Items]
Revenues	0	0
Expenses	0	0
HOC [Member] | Other revenues [member]
Condensed Income Statements, Captions [Line Items]
Revenues	0	2
HOC [Member] | Total revenues excluding reimbursable revenues [member]
Condensed Income Statements, Captions [Line Items]
Revenues	61	46
HOC [Member] | Other revenues from managed and franchised properties [member]
Condensed Income Statements, Captions [Line Items]
Revenues	75	44
HOC [Member] | Other expenses from managed and franchised properties [member]
Condensed Income Statements, Captions [Line Items]
Expenses	72	46
HWF Issuers [Member]
Condensed Income Statements, Captions [Line Items]
Revenues	0	0
Depreciation and amortization	0	0
General and administrative	0	0
Other expenses	0	0
Total expenses excluding reimbursable expenses	0	0
Total expenses	0	0
Operating income	0	0
Interest expense	(51)	(61)
Gain (loss) on foreign currency transactions	0	0
Other non-operating income, net	0	0
Income (loss) before income taxes and equity in earnings from subsidiaries	(51)	(61)
Income tax benefit (expense)	12	15
Income (loss) before equity in earnings from subsidiaries	(39)	(46)
Equity in earnings from subsidiaries	197	207
Net income	158	161
Net income attributable to noncontrolling interests	0	0
Net income attributable to Hilton stockholders	158	161
Comprehensive income	143	190
Comprehensive income attributable to noncontrolling interests	0	0
Comprehensive income attributable to Hilton stockholders	143	190
HWF Issuers [Member] | Franchise and licensing fees [member]
Condensed Income Statements, Captions [Line Items]
Revenues	0	0
HWF Issuers [Member] | Base and other management fees [member]
Condensed Income Statements, Captions [Line Items]
Revenues	0	0
HWF Issuers [Member] | Incentive management fees [member]
Condensed Income Statements, Captions [Line Items]
Revenues	0	0
HWF Issuers [Member] | Owned and leased hotels [member]
Condensed Income Statements, Captions [Line Items]
Revenues	0	0
Expenses	0	0
HWF Issuers [Member] | Other revenues [member]
Condensed Income Statements, Captions [Line Items]
Revenues	0	0
HWF Issuers [Member] | Total revenues excluding reimbursable revenues [member]
Condensed Income Statements, Captions [Line Items]
Revenues	0	0
HWF Issuers [Member] | Other revenues from managed and franchised properties [member]
Condensed Income Statements, Captions [Line Items]
Revenues	0	0
HWF Issuers [Member] | Other expenses from managed and franchised properties [member]
Condensed Income Statements, Captions [Line Items]
Expenses	0	0
Guarantor Subsidiaries [Member]
Condensed Income Statements, Captions [Line Items]
Revenues	1,531	1,428
Depreciation and amortization	62	60
General and administrative	0	0
Other expenses	8	7
Total expenses excluding reimbursable expenses	70	67
Total expenses	1,248	1,151
Operating income	283	277
Interest expense	0	0
Gain (loss) on foreign currency transactions	(18)	8
Other non-operating income, net	0	8
Income (loss) before income taxes and equity in earnings from subsidiaries	265	293
Income tax benefit (expense)	(65)	(73)
Income (loss) before equity in earnings from subsidiaries	200	220
Equity in earnings from subsidiaries	158	161
Net income	358	381
Net income attributable to noncontrolling interests	0	0
Net income attributable to Hilton stockholders	358	381
Comprehensive income	358	382
Comprehensive income attributable to noncontrolling interests	0	0
Comprehensive income attributable to Hilton stockholders	358	382
Guarantor Subsidiaries [Member] | Franchise and licensing fees [member]
Condensed Income Statements, Captions [Line Items]
Revenues	294	262
Guarantor Subsidiaries [Member] | Base and other management fees [member]
Condensed Income Statements, Captions [Line Items]
Revenues	52	51
Guarantor Subsidiaries [Member] | Incentive management fees [member]
Condensed Income Statements, Captions [Line Items]
Revenues	23	21
Guarantor Subsidiaries [Member] | Owned and leased hotels [member]
Condensed Income Statements, Captions [Line Items]
Revenues	0	0
Expenses	0	0
Guarantor Subsidiaries [Member] | Other revenues [member]
Condensed Income Statements, Captions [Line Items]
Revenues	23	24
Guarantor Subsidiaries [Member] | Total revenues excluding reimbursable revenues [member]
Condensed Income Statements, Captions [Line Items]
Revenues	392	358
Guarantor Subsidiaries [Member] | Other revenues from managed and franchised properties [member]
Condensed Income Statements, Captions [Line Items]
Revenues	1,139	1,070
Guarantor Subsidiaries [Member] | Other expenses from managed and franchised properties [member]
Condensed Income Statements, Captions [Line Items]
Expenses	1,178	1,084
Non-Guarantor Subsidiaries [Member]
Condensed Income Statements, Captions [Line Items]
Revenues	542	565
Depreciation and amortization	20	21
General and administrative	31	35
Other expenses	10	9
Total expenses excluding reimbursable expenses	359	385
Total expenses	492	530
Operating income	50	35
Interest expense	(12)	(10)
Gain (loss) on foreign currency transactions	16	6
Other non-operating income, net	4	3
Income (loss) before income taxes and equity in earnings from subsidiaries	58	34
Income tax benefit (expense)	(19)	(13)
Income (loss) before equity in earnings from subsidiaries	39	21
Equity in earnings from subsidiaries	0	0
Net income	39	21
Net income attributable to noncontrolling interests	(1)	(2)
Net income attributable to Hilton stockholders	38	19
Comprehensive income	37	52
Comprehensive income attributable to noncontrolling interests	(1)	(2)
Comprehensive income attributable to Hilton stockholders	36	50
Non-Guarantor Subsidiaries [Member] | Franchise and licensing fees [member]
Condensed Income Statements, Captions [Line Items]
Revenues	32	29
Non-Guarantor Subsidiaries [Member] | Base and other management fees [member]
Condensed Income Statements, Captions [Line Items]
Revenues	28	26
Non-Guarantor Subsidiaries [Member] | Incentive management fees [member]
Condensed Income Statements, Captions [Line Items]
Revenues	32	34
Non-Guarantor Subsidiaries [Member] | Owned and leased hotels [member]
Condensed Income Statements, Captions [Line Items]
Revenues	312	334
Expenses	298	320
Non-Guarantor Subsidiaries [Member] | Other revenues [member]
Condensed Income Statements, Captions [Line Items]
Revenues	3	2
Non-Guarantor Subsidiaries [Member] | Total revenues excluding reimbursable revenues [member]
Condensed Income Statements, Captions [Line Items]
Revenues	407	425
Non-Guarantor Subsidiaries [Member] | Other revenues from managed and franchised properties [member]
Condensed Income Statements, Captions [Line Items]
Revenues	135	140
Non-Guarantor Subsidiaries [Member] | Other expenses from managed and franchised properties [member]
Condensed Income Statements, Captions [Line Items]
Expenses	133	145
Parent [Member]
Condensed Income Statements, Captions [Line Items]
Revenues	0	0
Depreciation and amortization	0	0
General and administrative	0	0
Other expenses	0	0
Total expenses excluding reimbursable expenses	0	0
Total expenses	0	0
Operating income	0	0
Interest expense	0	0
Gain (loss) on foreign currency transactions	0	0
Other non-operating income, net	0	0
Income (loss) before income taxes and equity in earnings from subsidiaries	0	0
Income tax benefit (expense)	0	0
Income (loss) before equity in earnings from subsidiaries	0	0
Equity in earnings from subsidiaries	158	161
Net income	158	161
Net income attributable to noncontrolling interests	0	0
Net income attributable to Hilton stockholders	158	161
Comprehensive income	142	222
Comprehensive income attributable to noncontrolling interests	0	0
Comprehensive income attributable to Hilton stockholders	142	222
Parent [Member] | Franchise and licensing fees [member]
Condensed Income Statements, Captions [Line Items]
Revenues	0	0
Parent [Member] | Base and other management fees [member]
Condensed Income Statements, Captions [Line Items]
Revenues	0	0
Parent [Member] | Incentive management fees [member]
Condensed Income Statements, Captions [Line Items]
Revenues	0	0
Parent [Member] | Owned and leased hotels [member]
Condensed Income Statements, Captions [Line Items]
Revenues	0	0
Expenses	0	0
Parent [Member] | Other revenues [member]
Condensed Income Statements, Captions [Line Items]
Revenues	0	0
Parent [Member] | Total revenues excluding reimbursable revenues [member]
Condensed Income Statements, Captions [Line Items]
Revenues	0	0
Parent [Member] | Other revenues from managed and franchised properties [member]
Condensed Income Statements, Captions [Line Items]
Revenues	0	0
Parent [Member] | Other expenses from managed and franchised properties [member]
Condensed Income Statements, Captions [Line Items]
Expenses	$ 0	$ 0

Condensed Consolidating Guara_5

Condensed Consolidating Guarantor Financial Information - Condensed Cash Flow Statement (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Operating Activities:
Net cash provided by (used in) operating activities	$ 364	$ 243
Investing Activities:
Capital expenditures for property and equipment	(23)	(10)
Capitalized software costs	(19)	(15)
Other	(2)	(1)
Net cash used in investing activities	(44)	(26)
Financing Activities:
Borrowings	375	0
Repayment of debt	(336)	(14)
Intercompany transfers	0	0
Dividends paid	(44)	(47)
Repurchases of common stock	(296)	(110)
Tax withholdings on share-based compensation	(42)	(40)
Net cash used in financing activities	(343)	(211)
Effect of exchange rate changes on cash, restricted cash and cash equivalents	0	7
Net increase (decrease) in cash, restricted cash and cash equivalents	(23)	13
Cash, restricted cash and cash equivalents, beginning of period	484	670
Cash, restricted cash and cash equivalents, end of period	461	683
Eliminations [member]
Operating Activities:
Net cash provided by (used in) operating activities	0	0
Investing Activities:
Capital expenditures for property and equipment	0	0
Capitalized software costs	0	0
Other	0	0
Net cash used in investing activities	0	0
Financing Activities:
Borrowings	0
Repayment of debt	0	0
Intercompany transfers	0	0
Dividends paid	0	0
Repurchases of common stock	0	0
Tax withholdings on share-based compensation	0	0
Net cash used in financing activities	0	0
Effect of exchange rate changes on cash, restricted cash and cash equivalents	0	0
Net increase (decrease) in cash, restricted cash and cash equivalents	0	0
Cash, restricted cash and cash equivalents, beginning of period	0	0
Cash, restricted cash and cash equivalents, end of period	0	0
HWF Issuers [Member]
Operating Activities:
Net cash provided by (used in) operating activities	(38)	(46)
Investing Activities:
Capital expenditures for property and equipment	0	0
Capitalized software costs	0	0
Other	0	0
Net cash used in investing activities	0	0
Financing Activities:
Borrowings	375
Repayment of debt	(325)	(10)
Intercompany transfers	(12)	56
Dividends paid	0	0
Repurchases of common stock	0	0
Tax withholdings on share-based compensation	0	0
Net cash used in financing activities	38	46
Effect of exchange rate changes on cash, restricted cash and cash equivalents	0	0
Net increase (decrease) in cash, restricted cash and cash equivalents	0	0
Cash, restricted cash and cash equivalents, beginning of period	0	0
Cash, restricted cash and cash equivalents, end of period	0	0
HOC [Member]
Operating Activities:
Net cash provided by (used in) operating activities	0	(29)
Investing Activities:
Capital expenditures for property and equipment	(4)	0
Capitalized software costs	0	0
Other	0	0
Net cash used in investing activities	(4)	0
Financing Activities:
Borrowings	0
Repayment of debt	(7)	0
Intercompany transfers	53	41
Dividends paid	0	0
Repurchases of common stock	0	0
Tax withholdings on share-based compensation	(42)	(40)
Net cash used in financing activities	4	1
Effect of exchange rate changes on cash, restricted cash and cash equivalents	0	0
Net increase (decrease) in cash, restricted cash and cash equivalents	0	(28)
Cash, restricted cash and cash equivalents, beginning of period	37	63
Cash, restricted cash and cash equivalents, end of period	37	35
Parent [Member]
Operating Activities:
Net cash provided by (used in) operating activities	0	0
Investing Activities:
Capital expenditures for property and equipment	0	0
Capitalized software costs	0	0
Other	0	0
Net cash used in investing activities	0	0
Financing Activities:
Borrowings	0
Repayment of debt	0	0
Intercompany transfers	340	157
Dividends paid	(44)	(47)
Repurchases of common stock	(296)	(110)
Tax withholdings on share-based compensation	0	0
Net cash used in financing activities	0	0
Effect of exchange rate changes on cash, restricted cash and cash equivalents	0	0
Net increase (decrease) in cash, restricted cash and cash equivalents	0	0
Cash, restricted cash and cash equivalents, beginning of period	0	0
Cash, restricted cash and cash equivalents, end of period	0	0
Guarantor Subsidiaries [Member]
Operating Activities:
Net cash provided by (used in) operating activities	387	307
Investing Activities:
Capital expenditures for property and equipment	(1)	(1)
Capitalized software costs	(19)	(15)
Other	0	(2)
Net cash used in investing activities	(20)	(18)
Financing Activities:
Borrowings	0
Repayment of debt	0	0
Intercompany transfers	(353)	(293)
Dividends paid	0	0
Repurchases of common stock	0	0
Tax withholdings on share-based compensation	0	0
Net cash used in financing activities	(353)	(293)
Effect of exchange rate changes on cash, restricted cash and cash equivalents	0	0
Net increase (decrease) in cash, restricted cash and cash equivalents	14	(4)
Cash, restricted cash and cash equivalents, beginning of period	32	28
Cash, restricted cash and cash equivalents, end of period	46	24
Non-Guarantor Subsidiaries [Member]
Operating Activities:
Net cash provided by (used in) operating activities	15	11
Investing Activities:
Capital expenditures for property and equipment	(18)	(9)
Capitalized software costs	0	0
Other	(2)	1
Net cash used in investing activities	(20)	(8)
Financing Activities:
Borrowings	0
Repayment of debt	(4)	(4)
Intercompany transfers	(28)	39
Dividends paid	0	0
Repurchases of common stock	0	0
Tax withholdings on share-based compensation	0	0
Net cash used in financing activities	(32)	35
Effect of exchange rate changes on cash, restricted cash and cash equivalents	0	7
Net increase (decrease) in cash, restricted cash and cash equivalents	(37)	45
Cash, restricted cash and cash equivalents, beginning of period	415	579
Cash, restricted cash and cash equivalents, end of period	$ 378	$ 624

Condensed Consolidating Guara_6

Condensed Consolidating Guarantor Financial Information - Additional Information (Details)	Mar. 31, 2019Rate
Hilton Worldwide Parent [Member]
Condensed Financial Statements, Captions [Line Items]
Ownership percentage of equity interest	100.00%
HOC [Member]
Condensed Financial Statements, Captions [Line Items]
Ownership percentage of equity interest	100.00%
HWF Issuers [Member]
Condensed Financial Statements, Captions [Line Items]
Ownership percentage of equity interest	100.00%