Goodwill and Other Intangible Assets (Details 2) - USD ($) $ in Millions	3 Months Ended			9 Months Ended		12 Months Ended	21 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021	Sep. 30, 2022
Identifiable intangibles
Gross Carrying Amount	$ 50			$ 50		$ 115	$ 50
Accumulated Amortization	(35)			(35)		(70)	(35)
Net	15			$ 15		45	15
Finite-Lived Intangible Asset, Useful Life				18 years
Amortization expense	1		$ 2	$ 3	$ 6
U.K. long-lived and intangible asset impairment	87		$ 236	239	$ 236	236
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	15
Total estimated amortization expense for the five succeeding fiscal years
Remainder of 2022	1			1			1
2023	3			3			3
2024	3			3			3
2025	3			3			3
2026	3			3			3
2027	3			3			3
Trade names
Identifiable intangibles
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	9	$ 8				1	18
Customer relationships
Identifiable intangibles
Gross Carrying Amount	50			50		84	50
Accumulated Amortization	(35)			(35)		(60)	(35)
Net	15			15		24	15
U.K. long-lived and intangible asset impairment	6					49	55
Trade names
Identifiable intangibles
Gross Carrying Amount	0			0		31	0
Accumulated Amortization	0			0		(10)	0
Net	$ 0			$ 0		$ 21	$ 0