Condensed Consolidated Statements of Operations and Comprehensive Income - USD ($) shares in Millions, $ in Millions	4 Months Ended
	Jun. 20, 2020	Jun. 15, 2019
Income Statement [Abstract]
Net sales and other revenue	$ 22,751.6	$ 18,738.4
Cost of sales	15,980.1	13,498.8
Gross profit	6,771.5	5,239.6
Selling and administrative expenses	5,769.4	4,946.6
Loss (gain) on property dispositions and impairment losses, net	30.3	(28.5)
Operating income	971.8	321.5
Interest expense, net	180.6	225.2
Loss on debt extinguishment	0.0	42.7
Other expense (income), net	3.1	(11.1)
Income before income taxes	788.1	64.7
Income tax expense	201.9	15.7
Net income	586.2	49.0
Other comprehensive income (loss), net of tax
Loss on interest rate swaps	0.0	(27.0)
Recognition of pension gain	0.8	23.4
Other	0.9	1.7
Other comprehensive income (loss)	1.7	(1.9)
Comprehensive income	$ 587.9	$ 47.1
Net income per Class A common share
Basic net income per Class A common share (USD per share)	$ 1.03	$ 0.08
Diluted net income per Class A common share (USD per share)	$ 1.00	$ 0.08
Weighted average Class A common shares outstanding
Basic (in shares)	568.0	579.2
Diluted (in shares)	583.7	579.4