The TDR loans held-for-investment carried under the fair value option method.

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446

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Amount of financing receivable modified as troubled debt restructuring.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524

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Loans Held-for-Investment - Summary of TDRs by Type and Performing Status and Newly Modified TDRs (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022 USD ($) loan	Sep. 30, 2021 USD ($) loan	Sep. 30, 2022 USD ($) loan	Sep. 30, 2021 USD ($) loan	Jun. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)	Jun. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)
Troubled Debt Restructurings
TDRs	$ 55		$ 55			$ 37
Allowance for loan losses	126	$ 171	126	$ 171	$ 122	154	$ 202	$ 252
TDR loans under fair value option	$ 3		$ 3			5
Number of Accounts (in loans) \| loan	62	22	106	35
Pre-Modification Unpaid Principal Balance	$ 13	$ 8	$ 24	$ 16
Post-Modification Unpaid Principal Balance	14	$ 8	25	$ 16
Troubled debt restructurings
Troubled Debt Restructurings
Allowance for loan losses	3		3			4
Performing
Troubled Debt Restructurings
TDRs	25		25			24
Nonperforming
Troubled Debt Restructurings
TDRs	$ 30		$ 30			13
Residential first mortgage loans
Troubled Debt Restructurings
Number of Accounts (in loans) \| loan	60	21	101	32
Pre-Modification Unpaid Principal Balance	$ 13	$ 8	$ 24	$ 14
Post-Modification Unpaid Principal Balance	$ 14	$ 8	$ 25	$ 14
Home equity
Troubled Debt Restructurings
Number of Accounts (in loans) \| loan	2	1	3	2
Pre-Modification Unpaid Principal Balance	$ 0	$ 0	$ 0	$ 0
Post-Modification Unpaid Principal Balance	$ 0	0	$ 0	$ 0
Consumer
Troubled Debt Restructurings
Number of Accounts (in loans) \| loan	0		2
Pre-Modification Unpaid Principal Balance	$ 0		$ 0
Post-Modification Unpaid Principal Balance	0		0
Commercial real estate
Troubled Debt Restructurings
Number of Accounts (in loans) \| loan				1
Pre-Modification Unpaid Principal Balance				$ 2
Post-Modification Unpaid Principal Balance				2
Consumer loans
Troubled Debt Restructurings
TDRs						35
Consumer loans \| Performing
Troubled Debt Restructurings
TDRs						22
Consumer loans \| Nonperforming
Troubled Debt Restructurings
TDRs						13
Consumer loans \| Residential first mortgage loans
Troubled Debt Restructurings
TDRs	47		47			25
Allowance for loan losses	31	43	31	43	33	40	48	49
Consumer loans \| Residential first mortgage loans \| Performing
Troubled Debt Restructurings
TDRs	19		19			14
Consumer loans \| Residential first mortgage loans \| Nonperforming
Troubled Debt Restructurings
TDRs	28		28			11
Consumer loans \| Home equity
Troubled Debt Restructurings
TDRs	8		8			10
Allowance for loan losses	23	15	23	15	21	14	17	25
Consumer loans \| Home equity \| Performing
Troubled Debt Restructurings
TDRs	6		6			8
Consumer loans \| Home equity \| Nonperforming
Troubled Debt Restructurings
TDRs	2		2			2
Commercial loans
Troubled Debt Restructurings
TDRs						2
Commercial loans \| Performing
Troubled Debt Restructurings
TDRs						2
Commercial loans \| Nonperforming
Troubled Debt Restructurings
TDRs						0
Commercial loans \| Commercial and industrial
Troubled Debt Restructurings
TDRs						2
Allowance for loan losses	$ 16	$ 43	$ 16	$ 43	$ 11	32	$ 38	$ 51
Commercial loans \| Commercial and industrial \| Performing
Troubled Debt Restructurings
TDRs						2
Commercial loans \| Commercial and industrial \| Nonperforming
Troubled Debt Restructurings
TDRs						$ 0