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Regulatory Capital - Schedule of Basel III Requirements and the PCA well-capitalized Thresholds (Details) $ in Millions | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
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Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Basel III Requirements, Total risk-based capital | 0.1050 |
Basel III Requirements, Tier 1 risk-based capital | 0.0850 |
Basel III Requirements, Common equity Tier 1 | 0.0700 |
Basel III Requirements, Tier 1 leverage | 0.0400 |
PCA well-capitalized thresholds, Total risk-based capital | 0.1000 |
PCA well-capitalized thresholds, Tier 1 risk-based capital | 0.0800 |
PCA well-capitalized thresholds, Common equity Tier 1 | 0.0650 |
PCA well-capitalized thresholds, Tier 1 leverage | 0.0500 |
Total risk-based capital, amount | $ 11,799 | $ 5,042
Tier 1 risk-based capital, amount | 9,902 | 4,380
Common equity Tier 1, amount | 9,021 | 4,041
Tier 1 leverage, amount | $ 9,902 | $ 4,380
Total risk-based capital, Ratio | 0.1318 | 0.1435
Tier 1 risk-based capital, Ratio | 0.1106 | 0.1247
Common equity Tier 1, Ratio | 0.1008 | 0.1150
Tier 1 leverage, Ratio | 0.0899 | 0.0759
FCB |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Basel III Requirements, Total risk-based capital | 0.1050 |
Basel III Requirements, Tier 1 risk-based capital | 0.0850 |
Basel III Requirements, Common equity Tier 1 | 0.0700 |
Basel III Requirements, Tier 1 leverage | 0.0400 |
PCA well-capitalized thresholds, Total risk-based capital | 0.1000 |
PCA well-capitalized thresholds, Tier 1 risk-based capital | 0.0800 |
PCA well-capitalized thresholds, Common equity Tier 1 | 0.0650 |
PCA well-capitalized thresholds, Tier 1 leverage | 0.0500 |
Total risk-based capital, amount | $ 11,627 | $ 4,858
Tier 1 risk-based capital, amount | 10,186 | 4,651
Common equity Tier 1, amount | 10,186 | 4,651
Tier 1 leverage, amount | $ 10,186 | $ 4,651
Total risk-based capital, Ratio | 0.1299 | 0.1385
Tier 1 risk-based capital, Ratio | 0.1138 | 0.1326
Common equity Tier 1, Ratio | 0.1138 | 0.1326
Tier 1 leverage, Ratio | 0.0925 | 0.0807

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- Definition Banking Regulation, Common Equity Tier One Risk-Based Capital Ratio, Capital Adequacy Including Conservation Buffer, Minimum + References No definition available. + Details
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- Definition Banking Regulation, Tier One Leverage Capital Ratio, Capital Adequacy Including Conservation Buffer, Minimum + References No definition available. + Details
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- Definition Banking Regulation, Total Risk-Based Capital Ratio, Capital Adequacy Including Conservation Buffer, Minimum + References No definition available. + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=117337116&loc=SL5958568-112826 + Details
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