Deposits - Types and Sources of Deposits (Detail) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Deposits [Line Items]
Savings and Demand	$ 294,235	$ 261,435
Time	100,498	102,792
Total	394,733	364,227
Consumer
Deposits [Line Items]
Savings and Demand	91,884	89,150
Time	21,566	20,533
Total	113,450	109,683
Private bank
Deposits [Line Items]
Savings and Demand	81,585	85,427
Time	13,397	9,665
Total	94,982	95,092
Brokered certificates of deposit
Deposits [Line Items]
Savings and Demand	0	0
Time	37,578	30,816
Total	37,578	30,816
Deposit sweep programs
Deposits [Line Items]
Savings and Demand	46,165	37,965
Time	0	0
Total	46,165	37,965
Transaction banking
Deposits [Line Items]
Savings and Demand	73,139	48,618
Time	5,572	5,689
Total	78,711	54,307
Other
Deposits [Line Items]
Savings and Demand	1,462	275
Time	22,385	36,089
Total	$ 23,847	$ 36,364

Deposits [Line Items]

No definition available.

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- Definition

The amount of savings and demand deposits with no stated maturity.

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.12)
-URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878

+ Details

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- Definition

Amount of time deposit liabilities, including certificates of deposit.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 405
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=116652737&loc=d3e64164-112818

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.12)
-URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878

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- Details

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