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REGULATORY MATTERS - Capital and Capital Ratio Information (Details) $ in Millions | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
--- | --- | ---
Common Equity Tier 1 to Risk-Weighted Assets (Amount) |  |
Actual | $ 14,607 | $ 14,304
Minimum Capital Adequacy | $ 11,596 | $ 10,004
Common Equity Tier 1 to Risk-Weighted Assets (Ratio) |  |
Actual | 0.100 | 0.100
Minimum Capital Adequacy | 7.90% | 7.00%
Tier 1 Capital to Risk-Weighted Assets (Amount) |  |
Actual | $ 16,572 | $ 15,874
Minimum Capital Adequacy | $ 13,797 | $ 12,148
Tier 1 Capital to Risk-Weighted Assets (Ratio) |  |
Actual | 0.113 | 0.111
Minimum Capital Adequacy | 0.094 | 0.085
Total Capital to Risk-Weighted Assets (Amount) |  |
Actual | $ 19,602 | $ 18,542
Minimum Capital Adequacy | $ 16,733 | $ 15,006
Total Capital to Risk-Weighted Assets (Ratio) |  |
Actual | 0.134 | 0.130
Minimum Capital Adequacy | 0.114 | 0.105
Tier 1 Capital to Average Assets (Leverage) (Amount) |  |
Actual | $ 16,572 | $ 15,874
Minimum Capital Adequacy | $ 7,015 | $ 6,351
Tier 1 Capital to Average Assets (Leverage) (Ratio) |  |
Actual | 0.094 | 0.100
Minimum Capital Adequacy | 0.040 | 0.040
Capital conservation buffer | 3.40% | 2.50%

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