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Deposits - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019
Banking and Thrift1 [Abstract] |  |
Cash amount that exceeded federally insured limits | $ 6,400.0 | $ 5,100.0
Increase in demand accounts | 1,600.0 |
Increase savings accounts | 765.5 |
Decrease in certificates of deposit | 673.2 |
Decrease brokered deposits | $ 141.2 |

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- Definition Banking and Thrift1 + References No definition available. + Details
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- Definition Demand Deposit Accounts, Increase (Decrease) + References No definition available. + Details
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- Definition Amount of time deposit liabilities, including certificates of deposit, in denominations that meet or exceed the Federal Deposit Insurance Corporation (FDIC) insurance limit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 405 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=116652737&loc=d3e64164-112818 + Details
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