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Derivative and Hedging Activities - Net Gain (Loss) Recognized in Income on Derivative Instruments (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2022 USD ($)
Derivative [Line Items] |
Derivative gain (loss) | $ 11
Net Return (loss) on Mortgage Servicing Rights | Futures |
Derivative [Line Items] |
Derivative gain (loss) | (1)
Net Return (loss) on Mortgage Servicing Rights | Interest Rate Swaps and Swaptions |
Derivative [Line Items] |
Derivative gain (loss) | (11)
Net Return (loss) on Mortgage Servicing Rights | Mortgage-backed Securities Forwards |
Derivative [Line Items] |
Derivative gain (loss) | (4)
Net gain on loan sales | Rate Lock Commitments and US Treasury Futures |
Derivative [Line Items] |
Derivative gain (loss) | 28
Other non interest income | Forward Commitments |
Derivative [Line Items] |
Derivative gain (loss) | $ (1)

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- Definition Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4CC -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL109998890-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (e) -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5624171-113959 + Details
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