Goodwill and Other Intangible Assets - Gross Carrying Amount, Accumulated Amortization and Net Carrying Amount of Other Intangible Assets (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 3,922	$ 3,897
Accumulated amortization	(2,487)	(2,353)
Net carrying amount	1,435	1,544	$ 1,816
Client relationships
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	2,749	2,728
Accumulated amortization	(1,720)	(1,626)
Net carrying amount	1,029	1,102
Technology
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	402	402
Accumulated amortization	(197)	(178)
Net carrying amount	205	224
Core deposits
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	687	683
Accumulated amortization	(496)	(477)
Net carrying amount	191	206
Other
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	84	84
Accumulated amortization	(74)	(72)
Net carrying amount	$ 10	$ 12