Condensed Consolidating Guarantor Financial Information - Condensed Balance Sheet (Details) - USD ($) $ in Millions		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Condensed Balance Sheet Statements, Captions [Line Items]
Cash and cash equivalents		$ 538	$ 403
Restricted cash and cash equivalents		92	81
Accounts receivable, net		1,261	1,150
Intercompany receivables		0	0
Prepaid expenses		130	160
Other		72	189
Total current assets		2,093	1,983
Investments in subsidiaries		0	0
Goodwill		5,159	5,160	$ 5,190
Brands		4,877	4,869
Management and franchise contracts, net		780	872
Other intangible assets, net		421	415
Operating lease right-of-use assets		867	0
Property and equipment, net		380	367
Deferred income tax assets		100	90
Other		280	239
Total intangibles and other assets		12,864	12,012
Total assets		14,957	13,995
Accounts payable, accrued expenses and other		1,703	1,549
Current maturities of long-term debt	[1]	37	16
Current portion of deferred revenues		332	350
Intercompany payables		0	0
Total current liabilities		2,871	2,615
Long-term debt		7,956	7,266
Operating lease liabilities		1,037	0
Deferred revenues		827	826
Deferred income tax liabilities		795	898
Other		883	863
Liabilities		15,429	13,437
Total Hilton stockholders' equity (deficit)		(482)	551
Noncontrolling interests		10	7
Total equity (deficit)		(472)	558	$ 1,691	$ 5,627
Total liabilities and equity (deficit)		14,957	13,995
Guest Loyalty Program [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Current portion of liability for guest loyalty program		799	700
Liability for guest loyalty program		1,060	969
Parent Company [member]
Condensed Balance Sheet Statements, Captions [Line Items]
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
Investments in subsidiaries		(468)	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		3	4
Other		0	0
Total intangibles and other assets		(465)	561
Total assets		(465)	561
Accounts payable, accrued expenses and other		17	10
Current maturities of long-term debt		0	0
Current portion of deferred revenues		0	0
Intercompany payables		0	0
Total current liabilities		17	10
Long-term debt		0	0
Operating lease liabilities		0
Deferred revenues		0	0
Deferred income tax liabilities		0	0
Other		0	0
Liabilities		17	10
Total Hilton stockholders' equity (deficit)		(482)	551
Noncontrolling interests		0	0
Total equity (deficit)		(482)	551
Total liabilities and equity (deficit)		(465)	561
Parent Company [member] | Guest Loyalty Program [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Current portion of liability for guest loyalty program		0	0
Liability for guest loyalty program		0	0
HWF Issuers [member]
Condensed Balance Sheet Statements, Captions [Line Items]
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		1	1
Total current assets		1	1
Investments in subsidiaries		3,846	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		7	0
Other		11	23
Total intangibles and other assets		3,864	5,154
Total assets		3,865	5,155
Accounts payable, accrued expenses and other		21	19
Current maturities of long-term debt		0	0
Current portion of deferred revenues		0	0
Intercompany payables		0	0
Total current liabilities		21	19
Long-term debt		4,274	4,573
Operating lease liabilities		0
Deferred revenues		0	0
Deferred income tax liabilities		0	6
Other		38	0
Liabilities		4,333	4,598
Total Hilton stockholders' equity (deficit)		(468)	557
Noncontrolling interests		0	0
Total equity (deficit)		(468)	557
Total liabilities and equity (deficit)		3,865	5,155
HWF Issuers [member] | Guest Loyalty Program [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Current portion of liability for guest loyalty program		0	0
Liability for guest loyalty program		0	0
HOC [member]
Condensed Balance Sheet Statements, Captions [Line Items]
Cash and cash equivalents		1	3
Restricted cash and cash equivalents		36	34
Accounts receivable, net		26	10
Intercompany receivables		0	0
Prepaid expenses		43	52
Other		1	1
Total current assets		107	100
Investments in subsidiaries		7,645	7,930
Goodwill		0	0
Brands		0	0
Management and franchise contracts, net		1	0
Other intangible assets, net		0	0
Operating lease right-of-use assets		31
Property and equipment, net		62	27
Deferred income tax assets		96	94
Other		38	33
Total intangibles and other assets		7,873	8,084
Total assets		7,980	8,184
Accounts payable, accrued expenses and other		277	229
Current maturities of long-term debt		19	0
Current portion of deferred revenues		107	106
Intercompany payables		40	40
Total current liabilities		443	375
Long-term debt		3,472	2,467
Operating lease liabilities		37
Deferred revenues		0	0
Deferred income tax liabilities		0	0
Other		182	211
Liabilities		4,134	3,053
Total Hilton stockholders' equity (deficit)		3,846	5,131
Noncontrolling interests		0	0
Total equity (deficit)		3,846	5,131
Total liabilities and equity (deficit)		7,980	8,184
HOC [member] | Guest Loyalty Program [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Current portion of liability for guest loyalty program		0	0
Liability for guest loyalty program		0	0
Guarantor Subsidiaries [member]
Condensed Balance Sheet Statements, Captions [Line Items]
Cash and cash equivalents		10	17
Restricted cash and cash equivalents		21	15
Accounts receivable, net		897	735
Intercompany receivables		0	0
Prepaid expenses		40	37
Other		39	36
Total current assets		1,007	840
Investments in subsidiaries		(468)	557
Goodwill		3,824	3,824
Brands		4,405	4,404
Management and franchise contracts, net		448	556
Other intangible assets, net		306	287
Operating lease right-of-use assets		8
Property and equipment, net		68	65
Deferred income tax assets		0	0
Other		49	22
Total intangibles and other assets		8,640	9,715
Total assets		9,647	10,555
Accounts payable, accrued expenses and other		695	529
Current maturities of long-term debt		0	0
Current portion of deferred revenues		218	239
Intercompany payables		0	0
Total current liabilities		1,712	1,468
Long-term debt		0	0
Operating lease liabilities		5
Deferred revenues		755	762
Deferred income tax liabilities		930	962
Other		82	93
Liabilities		4,544	4,254
Total Hilton stockholders' equity (deficit)		5,103	6,301
Noncontrolling interests		0	0
Total equity (deficit)		5,103	6,301
Total liabilities and equity (deficit)		9,647	10,555
Guarantor Subsidiaries [member] | Guest Loyalty Program [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Current portion of liability for guest loyalty program		799	700
Liability for guest loyalty program		1,060	969
Non-Guarantor Subsidiaries [member]
Condensed Balance Sheet Statements, Captions [Line Items]
Cash and cash equivalents		527	383
Restricted cash and cash equivalents		35	32
Accounts receivable, net		338	405
Intercompany receivables		40	40
Prepaid expenses		52	80
Other		54	154
Total current assets		1,046	1,094
Investments in subsidiaries		0	0
Goodwill		1,335	1,336
Brands		472	465
Management and franchise contracts, net		331	316
Other intangible assets, net		115	128
Operating lease right-of-use assets		828
Property and equipment, net		250	275
Deferred income tax assets		129	90
Other		182	161
Total intangibles and other assets		3,642	2,771
Total assets		4,688	3,865
Accounts payable, accrued expenses and other		715	765
Current maturities of long-term debt		18	16
Current portion of deferred revenues		13	14
Intercompany payables		0	0
Total current liabilities		746	795
Long-term debt		210	226
Operating lease liabilities		995
Deferred revenues		72	64
Deferred income tax liabilities		0	28
Other		581	559
Liabilities		2,604	1,672
Total Hilton stockholders' equity (deficit)		2,074	2,186
Noncontrolling interests		10	7
Total equity (deficit)		2,084	2,193
Total liabilities and equity (deficit)		4,688	3,865
Non-Guarantor Subsidiaries [member] | Guest Loyalty Program [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Current portion of liability for guest loyalty program		0	0
Liability for guest loyalty program		0	0
Eliminations [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
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		(23)	(3)
Total current assets		(68)	(52)
Investments in subsidiaries		(10,555)	(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		(135)	(98)
Other		0	0
Total intangibles and other assets		(10,690)	(14,273)
Total assets		(10,758)	(14,325)
Accounts payable, accrued expenses and other		(22)	(3)
Current maturities of long-term debt		0	0
Current portion of deferred revenues		(6)	(9)
Intercompany payables		(40)	(40)
Total current liabilities		(68)	(52)
Long-term debt		0	0
Operating lease liabilities		0
Deferred revenues		0	0
Deferred income tax liabilities		(135)	(98)
Other		0	0
Liabilities		(203)	(150)
Total Hilton stockholders' equity (deficit)		(10,555)	(14,175)
Noncontrolling interests		0	0
Total equity (deficit)		(10,555)	(14,175)
Total liabilities and equity (deficit)		(10,758)	(14,325)
Eliminations [Member] | Guest Loyalty Program [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Current portion of liability for guest loyalty program		0	0
Liability for guest loyalty program		$ 0	$ 0

[1] Represents current maturities of finance lease liabilities.