CHANGES IN ACCUMULATED OTHER COMPREHENSIVE LOSS BY COMPONENT (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2022		Dec. 31, 2021	Dec. 31, 2020	May 31, 2020
Total, net of tax
Balance		$ 6,178		$ 4,893	$ 5,933
OCI before reclassifications		(121)		135	55
Amounts reclassified to net income	[2]	(2)	[1]	(161)	18
Total other comprehensive (loss) income, net of tax		(123)		(26)	73
Balance		2,782		6,178	4,893
Convertible debt securities | Trip.com Group
Total, net of tax
Investment in convertible notes				500		$ 250
Foreign currency translation adjustments
Total, net of tax
Balance		(146)		(89)	(139)
OCI before reclassifications		(111)		(57)	50
Amounts reclassified to net income	[2]	0	[1]	0	0
Total other comprehensive (loss) income, net of tax		(111)		(57)	50
Balance		(257)		(146)	(89)
Foreign currency translation adjustments | Foreign Exchange Forward | Net Investment Hedging
Before tax
Balance, beginning of period		(53)		(53)	(53)
Balance, end of period		(53)		(53)	(53)
Total, net of tax
Balance		(35)		(35)	(35)
Balance		(35)		(35)	(35)
Foreign Currency Translation Adjustments - Foreign Currency Translation
Before tax
Balance, beginning of period		(276)		11	(186)
OCI before reclassifications		(303)		(287)	197
Amounts reclassified to net income	[2]	0	[1]	0	0
OCI for the period		(303)		(287)	197
Balance, end of period		(579)		(276)	11
Tax
Balance, beginning of period	[3]	67		47	54
OCI before reclassifications	[3]	26		20	(7)
Amounts reclassified to net income	[2],[3]	0	[1]	0	0
OCI for the period	[3]	26		20	(7)
Balance, end of period	[3]	93		67	47
Foreign Currency Translation Adjustments - Net Investment Hedges
Before tax
Balance, beginning of period	[4]	91		(184)	(2)
OCI before reclassifications	[4]	219		275	(182)
Amounts reclassified to net income	[2],[4]	0	[1]	0	0
OCI for the period	[4]	219		275	(182)
Balance, end of period	[4]	310		91	(184)
Tax
Balance, beginning of period	[4]	(28)		37	(5)
OCI before reclassifications	[4]	(53)		(65)	42
Amounts reclassified to net income	[2],[4]	0	[1]	0	0
OCI for the period	[4]	(53)		(65)	42
Balance, end of period	[4]	(81)		(28)	37
Unrealized losses on cash flow hedges
Before tax
Balance, beginning of period	[5]	0		0	0
OCI before reclassifications	[5]	0		(15)	0
Amounts reclassified to net income	[2],[5]	0	[1]	15	0
OCI for the period	[5]	0		0	0
Balance, end of period	[5]	0		0	0
Tax
Balance, beginning of period	[5]	0		0	0
OCI before reclassifications	[5]	0		4	0
Amounts reclassified to net income	[2],[5]	0	[1]	(4)	0
OCI for the period	[5]	0		0	0
Balance, end of period	[5]	0		0	0
Total, net of tax
Balance	[5]	0		0	0
OCI before reclassifications	[5]	0		(11)	0
Amounts reclassified to net income	[2],[5]	0	[1]	11	0
Total other comprehensive (loss) income, net of tax	[5]	0		0	0
Balance	[5]	0		0	0
Net unrealized gains (losses) on available-for-sale securities
Before tax
Balance, beginning of period		3		3	(7)
OCI before reclassifications		(13)		265	6
Amounts reclassified to net income	[2]	(3)	[1]	(265)	4
OCI for the period		(16)		0	10
Balance, end of period		(13)		3	3
Tax
Balance, beginning of period		(1)		(32)	(45)
OCI before reclassifications		3		(62)	(1)
Amounts reclassified to net income	[2]	1	[1]	93	14
OCI for the period		4		31	13
Balance, end of period		3		(1)	(32)
Total, net of tax
Balance		2		(29)	(52)
OCI before reclassifications		(10)		203	5
Amounts reclassified to net income	[2]	(2)	[1]	(172)	18
Total other comprehensive (loss) income, net of tax		(12)		31	23
Balance		(10)		2	(29)
Net unrealized gains (losses) on available-for-sale securities | Grab
Before tax
Amounts reclassified to net income				(265)
Total, net of tax
Amounts reclassified to net income				(203)
Net unrealized gains (losses) on available-for-sale securities | Convertible debt securities | Trip.com Group
Tax
Amounts reclassified to net income				31	15
Total AOCI, net of tax
Total, net of tax
Balance		(144)		(118)	(191)
Balance		$ (267)		$ (144)	$ (118)

[1] For the year ended December 31, 2021, amounts reclassified to net income includes a gain of $203 million ($265 million before tax) related to the Company's investment in Grab, which was reclassified from available-for-sale debt securities to equity securities with readily determinable fair values (see Note 5).

[2] The reclassified net gains (losses) on available-for-sale securities, before tax, are included in "Other income (expense), net" and the reclassified tax (expenses) benefits are included in "Income tax expense" in the Consolidated Statements of Operations. The cost of marketable debt securities sold is determined using a first-in and first-out method. For the years ended December 31, 2021 and 2020, the reclassified tax expenses include a tax expense of $31 million and $15 million, related to the redemption in December 2021 of the Company's investment of $500 million in Trip.com Group convertible senior notes and the maturity in May 2020 of the Company's investment of $250 million in Trip.com Group convertible senior notes, respectively.

[3] The tax benefits relate to foreign currency translation adjustments to the Company's one-time deemed repatriation tax liability recorded at December 31, 2017 and foreign earnings for periods after December 31, 2017 that are subject to U.S. federal and state income tax, resulting from the enactment of the Tax Act.

[4] Net investment hedges balance at December 31, 2022 and earlier dates presented above, includes accumulated net losses from fair value adjustments of $35 million ($53 million before tax) associated with previously settled derivatives that were designated as net investment hedges. The remaining balances relate to foreign currency transaction gains (losses) and related tax benefits (expenses) associated with the Company's Euro-denominated debt that is designated as a hedge of the foreign currency exposure of the net investment in certain Euro functional currency subsidiaries (see Notes 2 and 12).

[5] Relates to the reverse treasury lock agreements entered in March 2021 that were designated as cash flow hedges and settled in April 2021 (see Note 6).