Goodwill, Customer Relationships and Other Intangible Assets - Schedule of Goodwill (Details) - USD ($) $ in Millions		12 Months Ended
	Oct. 31, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Goodwill		$ 6,955	$ 9,360	$ 9,360
Finite-lived intangible assets, net		103	138
Goodwill impairment	$ (2,400)	(2,405)	0	$ 0
Other intangible assets
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, net		103	138
Accumulated amortization		$ 1,966	$ 1,924