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Derivatives and Hedging Activities (Details Textuals) - USD ($) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2021 | Mar. 31, 2020 | Dec. 31, 2020
Derivative [Line Items] |  |  |
Margin on interest rate swaps | $ 28,000,000 |  | $ 34,000,000
Carrying values of hedged liabilities | 16,200,000,000 |  | 16,400,000,000
Cumulative amount of fair value hedging adjustment | 479,000,000 |  | 622,000,000
Net decrease in interest expense on long term debt and other | 73,000,000 | $ 21,000,000 |
Other Expense |  |  |
Derivative [Line Items] |  |  |
(Gain) loss on changes in fair value of derivatives and related underlying foreign currency exposures | 5,000,000 | (20,000,000) |
Fair Value Hedging | Fixed-Rate Debt Obligations |  |  |
Derivative [Line Items] |  |  |
Fixed-rate debt obligations designated in fair value hedging relationships | 15,800,000,000 |  | 15,800,000,000
Net Investment Hedges |  |  |
Derivative [Line Items] |  |  |
Notional amounts of derivatives | 10,500,000,000 |  | $ 10,500,000,000
Gain on net investment hedges recorded in AOCI, net of taxes | 6,000,000 | 732,000,000 |
Reclassifications out of AOCI | $ 0 | $ 0 |

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- Definition Amount posted as initial margin for centrally cleared interest rate swaps which is not netted against the derivative balances. + References No definition available. + Details
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- Definition Represents the amount of a net increase (decrease) to interest expense on long-term debt and other, primarily related to the net settlements on the Company's fair value hedges. + References No definition available. + Details
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- Definition Nominal or face amount used to calculate payments on the derivative liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959 Reference 2: 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=121590274&loc=SL5580258-113959 Reference 3: 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=121590274&loc=SL5579245-113959 + Details
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