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Supplemental Consolidated Financial Information - Equity Method Investments and Warrants (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Balance Sheet Components [Line Items]
Change in fair value of warrant	$ (104)	$ 108	$ (219)	$ 72
Gain (loss) on other investments	0	41	(6)	41
Gain (loss) on equity investments and warrant, net	(1,221)	(273)	(3,512)	(309)
Adevinta
Balance Sheet Components [Line Items]
Change in fair value of equity investment	(829)	(422)	(2,472)	(422)
Gmarket
Balance Sheet Components [Line Items]
Change in fair value of equity investment	(77)	0	(259)	0
KakaoBank
Balance Sheet Components [Line Items]
Change in fair value of equity investment	(105)	0	(196)	0
Realized change in fair value of shares sold	(67)	0	(75)	0
Adyen
Balance Sheet Components [Line Items]
Change in fair value of equity investment	(38)	0	(118)	0
Realized change in fair value of shares sold	$ (1)	$ 0	$ (167)	$ 0

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Amount of expense (income) related to adjustment to fair value of warrant liability.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section 25
-Paragraph 13
-URI https://asc.fasb.org/extlink&oid=109262497&loc=d3e20148-110875

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