Leases (Details) - USD ($) $ in Millions	Dec. 28, 2019	Mar. 30, 2019
Assets and Liabilities, Lessee [Abstract]
Operating lease right-of-use assets	$ 1,573.4	$ 0.0
Finance lease right-of-use assets	171.1
Total lease assets	1,744.5
Current operating lease liabilities	287.5	0.0
Long-term operating lease liabilities	1,637.5	0.0
Total operating lease liabilities	1,925.0
Current portion of finance lease liabilities	10.3	22.3
Long-term finance lease liabilities	191.1	$ 212.6
Total finance lease liabilities	201.4
Total lease liabilities	$ 2,126.4