Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets
Gross Carrying Amount	$ 385	$ 331
Accumulated Amortization	(216)	(175)
Net Carrying Amount	169	156
Core deposit intangibles
Finite-Lived Intangible Assets
Gross Carrying Amount	229	229
Accumulated Amortization	(182)	(153)
Net Carrying Amount	47	76
Developed technology
Finite-Lived Intangible Assets
Gross Carrying Amount	106	62
Accumulated Amortization	(17)	(3)
Net Carrying Amount	89	59
Customer relationships
Finite-Lived Intangible Assets
Gross Carrying Amount	30	25
Accumulated Amortization	(7)	(7)
Net Carrying Amount	23	18
Other
Finite-Lived Intangible Assets
Gross Carrying Amount	20	15
Accumulated Amortization	(10)	(12)
Net Carrying Amount	$ 10	$ 3