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v3.21.2

Allowance for Credit Losses on Loans and Leases - Summary of Activity in Allowance for Loan and Lease Losses (Details) - USD ($) $ in Millions | 6 Months Ended
--- | ---
Jun. 30, 2021 | Jun. 30, 2020
Valuation Allowance [Line Items] |  |
Balance, beginning of period | $ 194 | $ 148
Accounting Standards Update [Extensible List] | us-gaap:AccountingStandardsUpdate201613Member |
Charge-offs | $ (5) | (14)
Recoveries | 12 |
Balance, end of period | 202 | 174
Cumulative Effect, Period of Adoption, Adjustment |  |
Valuation Allowance [Line Items] |  |
Balance, beginning of period |  | $ 2
Accounting Standards Update [Extensible List] |  | us-gaap:AccountingStandardsUpdate201613Member
Adjusted Balance |  |
Valuation Allowance [Line Items] |  |
Balance, beginning of period | 194 | $ 150
Mortgage Receivable |  |
Valuation Allowance [Line Items] |  |
Balance, beginning of period | 176 | 123
Charge-offs | (2) |
Recoveries | 2 |
Balance, end of period | 177 | 157
Mortgage Receivable | Adjusted Balance |  |
Valuation Allowance [Line Items] |  |
Balance, beginning of period | 176 | 123
Other Loans |  |
Valuation Allowance [Line Items] |  |
Balance, beginning of period | 18 | $ 25
Accounting Standards Update [Extensible List] |  | us-gaap:AccountingStandardsUpdate201613Member
Charge-offs | (3) | $ (14)
Recoveries | 10 |
Balance, end of period | 25 | 17
Other Loans | Cumulative Effect, Period of Adoption, Adjustment |  |
Valuation Allowance [Line Items] |  |
Balance, beginning of period |  | 2
Other Loans | Adjusted Balance |  |
Valuation Allowance [Line Items] |  |
Balance, beginning of period | 18 | 27
Non-Covered Loans |  |
Valuation Allowance [Line Items] |  |
Provision for credit losses | 1 | 38
Non-Covered Loans | Mortgage Receivable |  |
Valuation Allowance [Line Items] |  |
Provision for credit losses | $ 1 | 34
Non-Covered Loans | Other Loans |  |
Valuation Allowance [Line Items] |  |
Provision for credit losses |  | $ 4

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- Definition Provision For Recoveries Of Credit Losses On Loans And Leases + References No definition available. + Details
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