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- Definition

Number of Investments

+ References

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- Definition

Amount of affordable housing tax credits and other tax benefits recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 740
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=116633289&loc=SL49122993-202985

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- Definition

Amount of investment in qualified affordable housing projects.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 740
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=116633289&loc=SL49122993-202985

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- Definition

Amount of amortization expense of investment in qualified affordable housing projects.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 740
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=116633289&loc=SL49122993-202985

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount of commitment or contingent commitments to qualified affordable housing project investments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 740
-Section 50
-Paragraph 2
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=116633289&loc=SL49122993-202985

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- Definition

Percentage of subsidiary's or equity method investee's stock owned by parent immediately after all stock transactions.

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No definition available.

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Investment Securities - Non-marketable and Other Securities Additional Information (Details) $ in Millions	3 Months Ended
	Mar. 31, 2022 USD ($) Investment	Mar. 31, 2021 USD ($)	Dec. 31, 2021 USD ($) Investment
Investment Holdings [Line Items]
Investments in qualified affordable housing projects, net	$ 957		$ 954
Other liabilities	469		482
Tax credits and other tax benefits recognized	27	$ 28
Amortization expense included in provision for income taxes	19	$ 16
Fair value accounting \| Unconsolidated venture capital and private equity fund investments
Investment Holdings [Line Items]
Nonmarketable securities	210		208
Fair value accounting \| Consolidated venture capital and private equity fund investments
Investment Holdings [Line Items]
Nonmarketable securities	196		130
Equity method accounting
Investment Holdings [Line Items]
Nonmarketable securities	721		671
Equity method accounting \| Consolidated venture capital and private equity fund investments
Investment Holdings [Line Items]
Nonmarketable securities	721		671
Equity method accounting \| Consolidated venture capital and private equity fund investments \| CP II, LP
Investment Holdings [Line Items]
Nonmarketable securities	$ 2		$ 2
Upper Limit
Investment Holdings [Line Items]
Percentage of ownership	5.00%
Non-marketable securities \| Fair value accounting \| Unconsolidated venture capital and private equity fund investments
Investment Holdings [Line Items]
Number of investments \| Investment	150		150
Non-marketable securities \| Equity method accounting \| Consolidated venture capital and private equity fund investments \| CP II, LP
Investment Holdings [Line Items]
Percentage of ownership	5.10%	5.10%
Non-marketable securities \| Equity method accounting \| Consolidated venture capital and private equity fund investments \| CP II, LP \| Direct ownership interest
Investment Holdings [Line Items]
Percentage of ownership	1.30%