Investment Securities - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Marketable Securities [Abstract]
Gain on sale of debt investment securities	$ 0	$ 0	$ 0
Loss on sale of debt investment securities	0	0	4
Proceeds from sales and prepayments of securities	0	68	629
Available-for-sale, accrued interest, after allowance for credit loss	32	23
Held-to-maturity, accrued interest, after allowance for credit loss	3	1
Carrying amount of equity method investments without readily determinable fair value	79	70
Unrealized (losses) gains for equity investments with readily determinable fair value	$ (11)	$ 3	$ 7

Amount, after allowance for credit loss, of accrued interest on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of unrealized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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