Financial Derivatives (Narrative) (Details) - USD ($) |
6 Months Ended | |
---|---|---|
Jun. 30, 2022 |
Jun. 30, 2021 |
|
Derivative [Line Items] | ||
Cash and securities held to collateralize net derivative assets | $ 1,600,000,000 | |
Cash and securities pledged to collateralize net derivative liabilities | 4,600,000,000 | |
Cash flow hedges | Interest Rate Contracts | ||
Derivative [Line Items] | ||
Cash flow hedge loss to be reclassified within twelve months | 816,000,000 | |
Cash flow hedge loss to be reclassified within twelve months, net of tax | $ 628,000,000 | |
Maximum length of time hedged in cash flow hedge | 10 years | |
Net investment hedges | Foreign exchange contracts: | ||
Derivative [Line Items] | ||
Gain (loss) from components excluded from assessment of net investment hedge effectiveness net | $ 0 | $ 0 |