Net Interest Income - Components of Interest Revenue and Interest Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Interest income:
Interest-bearing deposits with banks	$ 842	$ (15)	$ 76
Investment securities:
Investment securities available-for-sale	724	572	748
Investment securities held-to-maturity	979	665	829
Investment securities purchased under money market liquidity facility	0	4	117
Total Investment securities	1,703	1,241	1,694
Securities purchased under resale agreements	188	27	126
Loans	972	638	624
Other interest-earning assets	383	17	55
Total interest income	4,088	1,908	2,575
Interest expense:
Interest-bearing deposits	967	(263)	(117)
Short term borrowings under money market liquidity facility	0	4	101
Securities sold under repurchase agreements	14	0	4
Other short-term borrowings	26	2	17
Long-term debt	376	219	312
Other interest-bearing liabilities	161	41	58
Total interest expense	1,544	3	375
Net interest income	$ 2,544	$ 1,905	$ 2,200