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Derivatives - Net Investment Hedges (Details) - Net Investment Hedges € in Millions, $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2021 USD ($) | Sep. 30, 2020 USD ($) | Sep. 30, 2021 USD ($) | Sep. 30, 2020 USD ($) | Sep. 30, 2021 EUR (€)
Net investment hedges |  |  |  |  |
Pretax Gain (Loss) Recognized as Cumulative Translation within Other Comprehensive Income | $ 86 | $ (157) | $ 199 | $ (148) |
Foreign currency forward contracts |  |  |  |  |
Net investment hedges |  |  |  |  |
Derivative notional amount | € |  |  |  |  | € 150
Pretax Gain (Loss) Recognized as Cumulative Translation within Other Comprehensive Income | 3 | (3) | 4 | 2 |
Foreign currency denominated debt |  |  |  |  |
Net investment hedges |  |  |  |  |
Face amount of debt designated as a net investment hedge (in euros) | € |  |  |  |  | € 3,500
Pretax Gain (Loss) Recognized as Cumulative Translation within Other Comprehensive Income | $ 83 | $ (154) | $ 195 | $ (150) |

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- Definition Nominal or face amount used to calculate payment on derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959 + Details
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- Definition Amount, before tax and reclassification, of gain (loss) from derivative designated and qualifying as net investment hedge. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4CCC -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=125515794&loc=SL109998896-113959 + Details
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