Goodwill and Other Intangible Assets - Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Goodwill [Roll Forward]
Goodwill - gross	$ 7,016	$ 7,404	$ 7,533
Accumulated impairments	(3,477)	(3,477)	(3,477)
Net goodwill	3,539	3,927	4,056
Dispositions*	(408)
Reclassified to held for sale	(23)
Other	43	(129)
North America
Goodwill [Roll Forward]
Goodwill - gross	3,422	3,791	3,791
Accumulated impairments	(1,145)	(1,145)	(1,145)
Net goodwill	2,277	2,646	2,646
Dispositions*	(369)
Reclassified to held for sale	0
Other	0	0
International
Goodwill [Roll Forward]
Goodwill - gross	3,393	3,351	3,443
Accumulated impairments	(2,255)	(2,255)	(2,255)
Net goodwill	1,138	1,096	1,188
Dispositions*	0
Reclassified to held for sale	0
Other	42	(92)
Life Insurance
Goodwill [Roll Forward]
Goodwill - gross	170	223	239
Accumulated impairments	(67)	(67)	(67)
Net goodwill	103	156	172
Dispositions*	(30)
Reclassified to held for sale	(23)
Other	0	(16)
Other Operations
Goodwill [Roll Forward]
Goodwill - gross	31	39	60
Accumulated impairments	(10)	(10)	(10)
Net goodwill	21	29	$ 50
Dispositions*	(9)
Reclassified to held for sale	0
Other	$ 1	$ (21)