Condensed Consolidated Statements of Operations and Comprehensive Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Sep. 12, 2020	Sep. 07, 2019	Sep. 12, 2020	Sep. 07, 2019
Income Statement [Abstract]
Net sales and other revenue	$ 15,757.6	$ 14,176.7	$ 38,509.2	$ 32,915.1
Cost of sales	11,182.7	10,235.2	27,162.8	23,734.0
Gross profit	4,574.9	3,941.5	11,346.4	9,181.1
Selling and administrative expenses	4,031.2	3,794.6	9,800.6	8,741.2
(Gain) loss on property dispositions and impairment losses, net	(18.3)	(435.5)	12.0	(464.0)
Operating income	562.0	582.4	1,533.8	903.9
Interest expense, net	128.6	177.5	309.2	402.7
Loss on debt extinguishment	49.1	23.1	49.1	65.8
Other (income) expense, net	(11.4)	5.1	(8.3)	(6.0)
Income before income taxes	395.7	376.7	1,183.8	441.4
Income tax expense	111.2	81.9	313.1	97.6
Net income	284.5	294.8	870.7	343.8
Other comprehensive income (loss), net of tax
Loss on interest rate swaps	0.0	(11.3)	0.0	(38.3)
Recognition of pension gain	10.1	0.7	10.9	24.1
Other	0.3	1.3	1.2	3.0
Other comprehensive income (loss)	10.4	(9.3)	12.1	(11.2)
Comprehensive income	$ 294.9	$ 285.5	$ 882.8	$ 332.6
Net income per Class A common share
Basic net income per Class A common share	$ 0.52	$ 0.51	$ 1.57	$ 0.59
Diluted net income per Class A common share	$ 0.49	$ 0.51	$ 1.49	$ 0.59
Weighted average Class A common shares outstanding
Basic (in shares)	477.3	579.3	529.2	579.3
Diluted (in shares)	582.9	580.6	583.3	580.0