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Fair Value - Schedule of Fair Value, Assets Measured on Nonrecurring Basis (Details) - USD ($) $ in Millions | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Estimate of Fair Value Measurement |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans held for sale | $ 37 | $ 99
Loans - collateral dependent loans | 62,143 | 31,890
Mortgage and other servicing rights | 38 | 23
Level 1 | Estimate of Fair Value Measurement |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans held for sale | 0 | 0
Loans - collateral dependent loans | 0 | 0
Mortgage and other servicing rights | 0 | 0
Level 2 | Estimate of Fair Value Measurement |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans held for sale | 22 | 99
Loans - collateral dependent loans | 1,593 | 0
Mortgage and other servicing rights | 0 | 0
Level 3 | Estimate of Fair Value Measurement |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans held for sale | 15 | 0
Loans - collateral dependent loans | 60,550 | 31,890
Mortgage and other servicing rights | 38 | 23
Fair Value, Nonrecurring | Estimate of Fair Value Measurement |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans held for sale | 3 |
Loans - collateral dependent loans | 108 | 3
Other real estate owned | 43 | 34
Mortgage and other servicing rights | 1 | 22
Fair Value Measurements | 155 | 59
Fair Value, Nonrecurring | Changes Measurement |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans held for sale | 0 |
Loans - collateral dependent loans | (9) | (2)
Other real estate owned | 6 | (4)
Mortgage and other servicing rights | 1 | 3
Fair Value Measurements | (2) | (3)
Fair Value, Nonrecurring | Level 1 | Estimate of Fair Value Measurement |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans held for sale | 0 |
Loans - collateral dependent loans | 0 | 0
Other real estate owned | 0 | 0
Mortgage and other servicing rights | 0 | 0
Fair Value Measurements | 0 | 0
Fair Value, Nonrecurring | Level 2 | Estimate of Fair Value Measurement |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans held for sale | 0 |
Loans - collateral dependent loans | 0 | 0
Other real estate owned | 0 | 0
Mortgage and other servicing rights | 0 | 0
Fair Value Measurements | 0 | 0
Fair Value, Nonrecurring | Level 3 | Estimate of Fair Value Measurement |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans held for sale | 3 |
Loans - collateral dependent loans | 108 | 3
Other real estate owned | 43 | 34
Mortgage and other servicing rights | 1 | 22
Fair Value Measurements | $ 155 | $ 59

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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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- Definition Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -URI https://asc.fasb.org/subtopic&trid=2196772 + Details
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