Per Share Information (Reconciliation of the Numerators and Denominators of the Basic and Diluted Per Share Computations) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Earnings Per Share [Abstract]
Net Income (Loss) Attributable to Parent	$ 418	$ 421
Basic weighted-average number of common stock outstanding	433	433
Effect of assumed dilution from potential issuance of common shares relating to restricted stock units	1	1
Diluted weighted-average number of common shares outstanding	434	434
Earnings Per Share, Basic	$ 0.97	$ 0.97
Earnings Per Share, Diluted	0.97	0.97
Dividends/distributions declared per share of common stock (in dollars per share)	$ 1.565	$ 1.470