Earnings (Loss) Per Share (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Earnings Per Share [Abstract]
Incremental common shares attributable to dilutive effect of share-based payment arrangements (in shares)	1,000,000	1,000,000	1,000,000	1,000,000
Antidilutive securities excluded from computation of earnings (in shares)	10,000	1,000	5,000	3,000
Treasury stock, shares, acquired (in shares)			445,000	377,615
Purchase of treasury stock			$ 21	$ 18