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Derivative Financial Instruments - Narrative (Details) - USD ($) $ in Millions | Sep. 30, 2021 | Dec. 31, 2020
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Other assets |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Collateral deposit assets (liabilities) | $ 23 | $ 61
Payables and other liabilities |  |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |  |
Collateral deposit assets (liabilities) | $ 36 |

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- Definition Margin Deposit Assets (Liabilities) + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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- Details
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