Derivative Financial Instruments - Narrative (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
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

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.

No definition available.

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