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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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- Definition Amount of expense (income) related to adjustment to fair value of warrant liability. + References 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 + Details
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