Regulatory Matters (Narrative) (Details) $ in Billions	Dec. 31, 2021 USD ($)
Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]
Amount available for dividend payments to parent company without prior regulatory approval	$ 2.4
Outstanding cash reserves at the Federal Reserve Bank	$ 73.8

Amount of dividends that can be declared or paid without approval of regulatory agency.

No definition available.

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