Condensed Consolidated Statements Of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Nov. 22, 2019	Nov. 23, 2018	Nov. 22, 2019	Nov. 23, 2018
Document Period End Date			Nov. 22, 2019
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	$ 6.4	$ (6.5)	$ (7.9)	$ (25.1)
Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, after Tax	(0.1)	(0.2)	(0.2)	0.1
Net income	54.9	37.3	133.2	103.4
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	1.1	1.1	1.6	2.7
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	0.3	0.0	0.7	0.0
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	5.5		(9.0)
Other Comprehensive Income (Loss), Net of Tax	5.5	(7.8)	(9.0)	(27.7)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	60.4	$ 29.5	124.2	$ 75.7
Unrealized gain (loss) on investments [Member]
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	$ (0.1)		$ (0.2)