Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Sep. 26, 2020	Sep. 28, 2019	Sep. 26, 2020	Sep. 28, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (39.1)	$ 182.1	$ (166.8)	$ 299.2
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Foreign currency translation gains (losses)	17.3	(19.9)	30.3	(15.9)
Net gains (losses) on cash flow hedges	(7.3)	13.6	(11.3)	3.9
Net gains (losses) on defined benefit plans	(0.2)	0.1	(0.3)	0.0
Other comprehensive income (loss), net of tax	9.8	(6.2)	18.7	(12.0)
Total comprehensive income (loss)	$ (29.3)	$ 175.9	$ (148.1)	$ 287.2