Summary of Significant Accounting Policies (Narrative) (Details) - USD ($)		1 Months Ended		3 Months Ended
	Mar. 02, 2021	May 31, 2021	Mar. 31, 2020	May 01, 2021	May 02, 2020	May 19, 2021
Summary of Significant Accounting Policies [Line Items]
Cash dividends declared per share (in dollars per share)	$ 0.285		$ 0.285	$ 0.285	$ 0.285
Subsequent Event
Summary of Significant Accounting Policies [Line Items]
Cash dividends declared per share (in dollars per share)		$ 0.285
Stock repurchase program, amount authorized						$ 1,500,000,000
Property, Plant and Equipment
Summary of Significant Accounting Policies [Line Items]
Property and equipment purchased but not yet paid				$ 10,200,000	$ 34,500,000