Basis of Presentation (Details) $ in Billions	Jan. 01, 2020 USD ($)
Cumulative effect of change in accounting principles
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Decrease to retained earnings due to CECL adoption	$ 2.7

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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