Share-Based Compensation Plans - Shares Granted and Weighted Average Fair Value Per Share (Details) - $ / shares	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted, options (in shares)	0	130
Total shares granted, options and non-options (in shares)	392,000	542,000
Weighted-average per share fair value, options (in dollars per share)		$ 22.83
Weighted-average per share value, options and non-options (in dollars per share)	$ 104.91	$ 70.19
Deferred Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted, non-options (in shares)	13,000	12,000
Weighted-average per share fair value, non-options (in dollars per share)	$ 97.33	$ 90.18
Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted, non-options (in shares)	245,000	197,000
Weighted-average per share fair value, non-options (in dollars per share)	$ 104.50	$ 85.66
Performance Share Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares granted, non-options (in shares)	134,000	203,000
Weighted-average per share fair value, non-options (in dollars per share)	$ 106.40	$ 84.34