The Sponsor's percentage of ownership of the entity's common stock as of balance sheet date.

No definition available.

Name:	hlt_CommonStockOwnershipPercentage
Namespace Prefix:	hlt_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

The amount of common stock acquired in purchase.

No definition available.

The number of hotel and resort properties as of balance sheet date.

No definition available.

Name:	hlt_Numberofhotelsandresortsproperties
Namespace Prefix:	hlt_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

The number of hotel and resort rooms as of the balance sheet date.

No definition available.

Name:	hlt_Numberofhotelsandresortsrooms
Namespace Prefix:	hlt_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

[Line Items] for Organization and basis of presentation [Table]

No definition available.

Name:	hlt_OrganizationandbasisofpresentationLineItems
Namespace Prefix:	hlt_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

The number of countries in which the entity operates as of balance sheet date.

No definition available.

Name:	us-gaap_NumberOfCountriesInWhichEntityOperates
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Name:	us-gaap_RelatedPartyTransactionAxis=hlt_HNATourismGroupCo.Ltd.Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=hlt_HNATourismGroupCo.Ltd.Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Organization (Details) shares in Millions	Jun. 30, 2019 Room Country Hotel	Dec. 31, 2018 Room Country Hotel	Mar. 15, 2017 Rate shares
Organization and basis of presentation [Line Items]
Number of hotels and resorts, properties \| Hotel	5,872	5,685
Number of hotels and resorts, rooms \| Room	939,297	912,960
Number of Countries in which Entity Operates \| Country	114	113
HNA Tourism Group Co., Ltd. [Member]
Organization and basis of presentation [Line Items]
Common stock acquired \| shares			82.5
HNA Tourism Group Co., Ltd. [Member]
Organization and basis of presentation [Line Items]
Common Stock Ownership Percentage \| Rate			25.00%