Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 108	$ 106
Accumulated Amortization	(80)	(98)
Net carrying amount	$ 28	$ 8
Weighted Average Remaining Life in Years	4 years 6 months	4 years 10 months 24 days
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 96	$ 74
Accumulated Amortization	(73)	(67)
Net carrying amount	$ 23	$ 7
Weighted Average Remaining Life in Years	4 years 8 months 12 days	5 years 7 months 6 days
Software in development and other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount		$ 25
Accumulated Amortization		(25)
Net carrying amount		$ 0
Weighted Average Remaining Life in Years		0 years
Trade name
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 9	$ 7
Accumulated Amortization	(7)	(6)
Net carrying amount	$ 2	$ 1
Weighted Average Remaining Life in Years	4 years 6 months	7 months 6 days
Other(1)
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 3
Accumulated Amortization	0
Net carrying amount	$ 3
Weighted Average Remaining Life in Years	2 years 9 months 18 days