Derivatives and Hedging Activities - Credit Derivatives Sold and Held (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2022	Dec. 31, 2021
Credit Derivatives [Line Items]
Notional Amount	$ 0	$ 149
Payment / Performance Risk	0.00%	0.00%
Other
Credit Derivatives [Line Items]
Notional Amount	$ 0	$ 149
Average Term (Years)	3 years 1 month 24 days	13 years 10 months 9 days
Payment / Performance Risk	4.45%	3.15%
Other | Maximum
Credit Derivatives [Line Items]
Notional Amount	$ 1