Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Numerator for Basic and Diluted Earnings Per Share - [Abstract]
Net Income	$ 390	$ 677
Denominator for Basic Earnings Per Share - [Abstract]
Weighted Average Shares	582	580
Denominator for Diluted Earnings Per Share - [Abstract]
Adjusted Diluted Weighted Average Shares	586	583
Net Income Per Share
Basic	$ 0.67	$ 1.17
Diluted	$ 0.67	$ 1.16
Stock Options/SARs/ESPP
Potential Dilutive Common Shares - [Abstract]
Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangments	1	1
Net Income Per Share
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	2	8
Restricted Stock/Units and Performance Units
Potential Dilutive Common Shares - [Abstract]
Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangments	3	2