Other Liabilities - Schedule of Other Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2023	Mar. 27, 2023	Dec. 31, 2022
Other Liabilities Disclosure [Abstract]
Fair value of derivative financial instruments	$ 791		$ 486
Lease liabilities	345		352
Accrued expenses and accounts payable	476		275
Commitments to fund tax credit investments	991		295
Deferred taxes	3,551		286
ACL for unfunded commitments	352		106
Incentive plan liabilities	156		267
Accrued interest payable	150		57
Other	1,360		464
Total other liabilities	$ 8,172		$ 2,588
SVB
Business Acquisition [Line Items]
Value Appreciation Instrument		$ 500