Share-Based Compensation - Summary Of Stock Option Activity Under All Stock Plans (Details) shares in Millions	12 Months Ended
	Dec. 31, 2021 $ / shares shares
Number Outstanding
Beginning balance (shares) | shares	13.4
Options granted (shares) | shares	1.1
Options exercised (shares) | shares	(2.7)
Options forfeited/expired (shares) | shares	(0.1)
Ending balance (shares) | shares	11.7
Weighted-Average Exercise Price Per Share
Beginning balance (usd per share) | $ / shares	$ 101.69
Options granted (usd per share) | $ / shares	294.53
Options exercised (usd per share) | $ / shares	74.39
Options forfeited/expired (usd per share) | $ / shares	198.34
Ending balance (usd per share) | $ / shares	$ 125.07