Capital Stock and Stock-Based Compensation Plans - Summary of Stock Option Activity (Details) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) $ / shares shares
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward]
Options - beginning balance (in shares) | shares	24,431
Granted (in shares) | shares	2,310
Exercised (in shares) | shares	(5,318)
Forfeited (in shares) | shares	(174)
Expired (in share) | shares	(507)
Options - ending balance (in shares) | shares	20,742
Options exercisable (in shares) | shares	14,608
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Options - beginning of period (in dollars per share) | $ / shares	$ 75
Options - shares granted (in dollars per share) | $ / shares	73
Options - shares exercised (in dollars per share) | $ / shares	72
Options - shares forfeited (in dollars per share) | $ / shares	77
Options - shares expired (in dollars per share) | $ / shares	74
Options - end of period (in dollars per share) | $ / shares	75
Options exercisable - end of period (in dollars per share) | $ / shares	$ 75
Weighted average remaining contractual life, options outstanding (in years)	5 years
Weighted average remaining contractual life, options exercisable (in years)	4 years
Intrinsic value of unexercised in-the-money options, options outstanding | $	$ 97
Intrinsic value of unexercised in-the-money options, options exercisable | $	$ 74