Income Taxes (Schedule of earnings before income taxes and after-tax earnings from joint ventures and corresponding income taxes) (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	May 30, 2021	May 26, 2019	May 30, 2021	May 31, 2020	May 26, 2019
Earnings before income taxes and after-tax earnings from joint ventures:
United States			$ 2,567.1	$ 2,402.1	$ 1,788.2
Foreign			290.3	198.1	293.8
Earnings before income taxes and after-tax earnings from joint ventures			2,857.4	2,600.2	2,082.0
Income taxes currently payable:
Federal			369.8	381.0	151.9
State and local			47.5	55.3	35.3
Foreign			93.0	73.8	84.6
Total current			510.3	510.1	271.8
Income taxes deferred:
Federal			117.9	67.8	86.7
State and local			13.6	(56.6)	21.6
Foreign			(12.7)	(40.8)	(12.3)
Total deferred	$ 11.2		118.8	(29.6)	96.0
Total income taxes		$ (72.9)	$ 629.1	$ 480.5	$ 367.8