Operating Segments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Feb. 27, 2021	Feb. 29, 2020	Feb. 27, 2021	Feb. 29, 2020	May 30, 2020
Segment Reporting Information
Net sales	$ 590.5	$ 665.7	$ 1,843.6	$ 2,010.8
Operating Earnings (Loss):	55.1	50.4	221.5	173.0
Total Assets	2,054.9		2,054.9		$ 2,053.9
North America Contract
Segment Reporting Information
Net sales	268.2	413.4	930.2	1,322.5
Operating Earnings (Loss):	11.9	51.2	99.3	176.4
Total Assets	745.7		745.7		769.5
International Contract
Segment Reporting Information
Net sales	165.7	156.1	487.4	388.1
Operating Earnings (Loss):	22.5	11.3	70.9	37.3
Total Assets	575.1		575.1		512.5
Retail
Segment Reporting Information
Net sales	156.6	96.2	426.0	300.2
Operating Earnings (Loss):	31.5	(1.6)	83.3	(6.4)
Total Assets	329.2		329.2		310.9
Corporate
Segment Reporting Information
Operating Earnings (Loss):	(10.8)	$ (10.5)	(32.0)	$ (34.3)
Total Assets	$ 404.9		$ 404.9		$ 461.0