Computation of Basic/Diluted Earnings Per Common Share - Schedule of Computation of Basic and Diluted Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Numerator:
Consolidated net income	$ 740	$ 395
Denominator:
Denominator for basic earnings per common share - weighted-average common shares outstanding (in shares)	785	780
Effect of dilutive stock options and awards under the treasury stock method (in shares)	7	6
Denominator for diluted earnings per common share—weighted-average common shares outstanding plus dilutive common shares under the treasury stock method (in shares)	792	786
Basic earnings per common share (in dollars per share)	$ 0.94	$ 0.51
Diluted earnings per common share (in dollars per share)	$ 0.93	$ 0.50