Share-Based Compensation - Summary of Stock Option Activity (Details) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended
	Mar. 31, 2022 USD ($) $ / shares shares
Shares
Stock options outstanding - balance at beginning of period (in shares) | shares	10,229
Granted (in shares) | shares	0
Forfeited (in shares) | shares	(85)
Exercised (in shares) | shares	(639)
Stock options outstanding - balance at end of period (in shares) | shares	9,505
Stock options exercisable (in shares) | shares	8,725
Weighted-Average Exercise Price
Stock options outstanding - balance at beginning of period (in dollars per shares) | $ / shares	$ 56.36
Granted (in dollars per share) | $ / shares	0
Forfeited (in dollars per share) | $ / shares	111.67
Exercised (in dollars per share) | $ / shares	49.95
Stock options outstanding - balance at end of period (in dollars per shares) | $ / shares	56.29
Stock options exercisable (in dollars per share) | $ / shares	$ 51.38
Weighted-Average Remaining Contractual Term (Years)
Stock options outstanding (in years)	4 years
Stock options exercisable (in years)	3 years 7 months 17 days
Aggregate Intrinsic Value (In millions)
Stock options outstanding | $	$ 444
Stock options exercisable | $	$ 443