Income Taxes - Schedule of Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Deferred Tax Assets:
Net operating loss (NOL) carry forwards	$ 358	$ 8
Basis difference in loans	57	0
Allowance for credit losses	252	40
Accrued liabilities and reserves	37	6
Deferred compensation	51	19
Right of use - lease liability	92	14
Domestic tax credits	176	0
Mark to market adjustments	28	0
Capitalized costs	15	0
Unrealized net loss on securities AFS	275	5
Other	48	17
Total gross deferred tax assets	1,389	109
Deferred Tax Liabilities:
Operating leases	(1,311)	0
Right of use - lease asset	(86)	(14)
Loans and direct financing leases	(43)	(8)
Deferred BOLI Gain	(15)	0
Pension	(54)	(64)
Prepaid expenses	(14)	0
Market discount accretion	(35)	0
Other	(47)	(56)
Total deferred tax liabilities	(1,605)	(142)
Total net deferred tax liability before valuation allowances	(216)	(33)
Less: valuation allowances	(70)	0
Net deferred tax liability after valuation allowances	$ (286)	$ (33)