Goodwill and Other Intangible Assets (Goodwill) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020
Goodwill [Roll Forward]
Beginning balance		$ 2,694	$ 2,592
Additions / Adjustments		3	75
Other	[1]	(15)	27
Ending balance		2,682	2,694
United States
Goodwill [Roll Forward]
Beginning balance		1,425	1,367
Additions / Adjustments		(1)	58
Other	[1]	0	0
Ending balance		1,424	1,425
International
Goodwill [Roll Forward]
Beginning balance		1,269	1,225
Additions / Adjustments		4	17
Other	[1]	(15)	27
Ending balance		$ 1,258	$ 1,269

[1] Includes adjustments for foreign currency translation.