Loans - Delinquency Ratio for Consumer Loan (Detail) - USD ($) $ in Millions		Sep. 30, 2022	Dec. 31, 2021
Financing Receivable, Credit Quality Indicator [Line Items]
Total	[1]	$ 61,775	$ 55,864
Loans carried at lower of amortized cost or fair value of collateral less cost to sell		52	24
Consumer loans
Financing Receivable, Credit Quality Indicator [Line Items]
2022		2,521	4,521
2021		4,347	3,343
2020		3,019	1,531
2019		1,379	891
2018		785	987
Prior		5,057	4,589
Revolving Loans		200	206
Total		17,308	16,068
Loans in process of foreclosure		18	87
Consumer loans | Residential mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
2022		2,478	4,498
2021		4,328	3,305
2020		2,982	1,496
2019		1,342	872
2018		768	969
Prior		4,793	4,329
Revolving Loans		0	0
Total		16,691	15,469
Consumer loans | Home equity mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
2022		33	15
2021		13	30
2020		30	30
2019		32	18
2018		17	17
Prior		220	215
Revolving Loans		0	0
Total		345	325
Consumer loans | Credit cards
Financing Receivable, Credit Quality Indicator [Line Items]
2022		0	0
2021		0	0
2020		0	0
2019		0	0
2018		0	0
Prior		0	0
Revolving Loans		198	204
Total		198	204
Consumer loans | Other consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2022		10	8
2021		6	8
2020		7	5
2019		5	1
2018		0	1
Prior		44	45
Revolving Loans		2	2
Total		74	70
Consumer loans | Summary of Two Months and Over Contractual Delinquency
Financing Receivable, Credit Quality Indicator [Line Items]
2022		1	5
2021		4	2
2020		6	11
2019		14	13
2018		10	8
Prior		93	65
Revolving Loans		2	3
Total		130	107
Consumer loans | Summary of Two Months and Over Contractual Delinquency | Residential mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
2022		1	5
2021		4	2
2020		6	11
2019		14	13
2018		10	8
Prior		89	64
Revolving Loans		0	0
Total		124	103
Consumer loans | Summary of Two Months and Over Contractual Delinquency | Home equity mortgages
Financing Receivable, Credit Quality Indicator [Line Items]
2022		0	0
2021		0	0
2020		0	0
2019		0	0
2018		0	0
Prior		3	1
Revolving Loans		0	0
Total		3	1
Consumer loans | Summary of Two Months and Over Contractual Delinquency | Credit cards
Financing Receivable, Credit Quality Indicator [Line Items]
2022		0	0
2021		0	0
2020		0	0
2019		0	0
2018		0	0
Prior		0	0
Revolving Loans		2	3
Total		2	$ 3
Consumer loans | Summary of Two Months and Over Contractual Delinquency | Other consumer
Financing Receivable, Credit Quality Indicator [Line Items]
2022		0
2021		0
2020		0
2019		0
2018		0
Prior		1
Revolving Loans		0
Total		$ 1

[1] The following table summarizes assets and liabilities related to our consolidated variable interest entities ("VIEs") at September 30, 2022 and December 31, 2021. Assets and liabilities exclude intercompany balances that eliminate in consolidation. See Note 17, "Variable Interest Entities," for additional information. September 30, 2022December 31, 2021(in millions)AssetsLoans$127 $46 Other assets44 55 Total assets$171 $101 LiabilitiesInterest, taxes and other liabilities$26 $9 Total liabilities$26 $9