Share-Based Compensation Plans (Narrative) (Details) - $ / shares			3 Months Ended
	Feb. 24, 2022	Feb. 23, 2022	Mar. 31, 2022
Restricted Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants in period	9,048	187,760	196,808
Weighted-average grant-date fair value of options granted	$ 287.9425	$ 301.535
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants in period		18,340
Weighted-average grant-date fair value of options granted		$ 301.535