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Capital Requirements (Changes) (Details) - USD ($) $ in Billions | Dec. 31, 2018 | Jun. 30, 2018 | May 24, 2018 | Dec. 31, 2016 | Jan. 01, 2016 | Jul. 31, 2013
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Total Capital (to Risk Weighted Assets), For Capital Adequacy Purposes Ratio (as a percent) |  |  |  | 2.50% | 0.625% |
Maximum amount of assets to exempt banks |  |  | $ 10 |  |  |
Maximum amount of assets for qualified bank holding companies | $ 3 | $ 1 |  |  |  |
Tier 1 capital (to Risk Weighted Assets), Actual Ratio (as a percent) |  |  |  |  |  | 6.00%
Minimum |  |  |  |  |  |
Total Capital (to Risk Weighted Assets), Actual Ratio (as a percent) |  |  |  | 4.50% |  |
Community bank leverage ratio |  |  | 8.00% |  |  | 4.00%
CET 1 ratio | 7.00% |  |  |  |  |
Tier 1 capital (to Risk Weighted Assets), Actual Ratio (as a percent) |  |  |  |  |  | 4.00%
Maximum |  |  |  |  |  |
Community bank leverage ratio |  |  | 10.00% |  |  |

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- Definition Ratio of tangible equity to average consolidated assets. + References No definition available. + Details
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- Definition The maximum amount of assets which will give qualified bank holding companies eligibility for the Federal Reserve's Small Bank Holding Company Policy Statement. + References No definition available. + Details
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