Regulatory Capital - Risk-Based Regulatory Requirements (Details)	Jun. 30, 2025	Dec. 31, 2024
Standardized capital ratio requirements \| BHC
Minimum risk-based capital ratios
CET1 capital	0.123	0.123
Tier 1 capital	0.138	0.138
Total capital	0.158	0.158
Well capitalized risk-based ratios
Stress capital buffer	3.30%
Standardized capital ratio requirements \| IDI
Minimum risk-based capital ratios
CET1 capital	0.070	0.070
Tier 1 capital	0.085	0.085
Total capital	0.105	0.105
Advanced capital ratio requirements \| BHC
Minimum risk-based capital ratios
CET1 capital	0.115	0.115
Tier 1 capital	0.130	0.130
Total capital	0.150	0.150
Well capitalized risk-based ratios
Capital conservation buffer requirement	2.50%
Advanced capital ratio requirements \| IDI
Minimum risk-based capital ratios
CET1 capital	0.070	0.070
Tier 1 capital	0.085	0.085
Total capital	0.105	0.105
Well-capitalized ratios \| BHC
Well capitalized risk-based ratios
Tier 1 capital	0.060	0.060
Total capital	0.100	0.100
GSIB surcharge	4.50%
Countercyclical buffer	0
Well-capitalized ratios \| IDI
Well capitalized risk-based ratios
CET1 capital	0.065	0.065
Tier 1 capital	0.080	0.080
Total capital	0.100	0.100
Capital conservation buffer requirement	2.50%	2.50%

Banking Regulation, Stress Capital Buffer

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An additional amount held in risk-based capital designed to ensure that banks build up capital buffers outside periods of stress which can be drawn down as losses are incurred. The requirement is based on simple capital conservation rules designed to avoid breaches of minimum capital requirements.

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No definition available.

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- Definition

Capital Ratio

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No definition available.

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A specific risk-based capital surcharge applied to a Global Systemically Important Bank (“GSIB”). Institutions are identified as GSIBs by the Financial Stability Board (“FSB”).

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No definition available.

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- Definition

Well Capitalized Risk-based Ratios

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No definition available.

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Ratio of minimum Common Equity Tier 1 risk-based capital to risk-weighted assets required for capital adequacy as defined by regulatory framework.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 505
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477270/942-505-50-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 505
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477270/942-505-50-1B

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Ratio of minimum Common Equity Tier 1 risk-based capital to risk-weighted assets categorized as well capitalized as defined by regulatory framework for prompt corrective action.

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Countercyclical capital buffer percentage as defined by regulatory framework.

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- Definition

Ratio of minimum total risk-based capital to risk-weighted assets required for capital adequacy as defined by regulatory framework.

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Ratio of minimum total risk-based capital to risk-weighted assets categorized as well capitalized as defined by regulatory framework for prompt corrective action.

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Ratio of minimum Tier 1 risk-based capital to risk-weighted assets required for capital adequacy as defined by regulatory framework.

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Ratio of minimum Tier 1 risk-based capital to risk-weighted assets categorized as well capitalized as defined by regulatory framework for prompt corrective action.

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