Condensed Consolidated Statements of Shareholders' Equity - USD ($) $ in Millions	Total	Common Stock	Additional paid in capital	Treasury stock	Accumulated other comprehensive income	Retained earnings (accumulated deficit)
Beginning balance (in shares) at Feb. 24, 2018		279,654,028
Beginning balance at Feb. 24, 2018	$ 1,398.2	$ 2.8	$ 1,773.3	$ 0.0	$ 191.1	$ (569.0)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity-based compensation	13.4		13.4
Employee tax withholding on vesting of phantom units	(14.3)		(14.3)
Net income (loss)	(17.7)					(17.7)
Other comprehensive income (loss), net of tax	5.9				5.9
Other activity	5.8					5.8
Ending balance (in shares) at Jun. 16, 2018		279,654,028
Ending balance at Jun. 16, 2018	1,391.3	$ 2.8	1,772.4	0.0	197.0	(580.9)
Beginning balance (in shares) at Feb. 24, 2018		279,654,028
Beginning balance at Feb. 24, 2018	1,398.2	$ 2.8	1,773.3	0.0	191.1	(569.0)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(4.5)
Ending balance (in shares) at Dec. 01, 2018		277,882,010
Ending balance at Dec. 01, 2018	1,390.1	$ 2.8	1,788.7	(25.8)	192.1	(567.7)
Beginning balance (in shares) at Feb. 24, 2018		279,654,028
Beginning balance at Feb. 24, 2018	1,398.2	$ 2.8	1,773.3	0.0	191.1	(569.0)
Ending balance (in shares) at Feb. 23, 2019		277,882,010
Ending balance at Feb. 23, 2019	1,450.7	$ 2.8	1,814.2	(25.8)	91.3	(431.8)
Beginning balance (in shares) at Jun. 16, 2018		279,654,028
Beginning balance at Jun. 16, 2018	1,391.3	$ 2.8	1,772.4	0.0	197.0	(580.9)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity-based compensation	12.2		12.2
Employee tax withholding on vesting of phantom units	(0.5)		(0.5)
Net income (loss)	(32.4)					(32.4)
Other comprehensive income (loss), net of tax	(4.8)				(4.8)
Other activity	(3.2)		(3.2)
Ending balance (in shares) at Sep. 08, 2018		279,654,028
Ending balance at Sep. 08, 2018	1,362.6	$ 2.8	1,780.9	0.0	192.2	(613.3)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity-based compensation	9.9		9.9
Employee tax withholding on vesting of phantom units	(0.5)		(0.5)
Treasury stock purchases, at cost (in shares)		1,772,018
Treasury stock purchases, at cost	25.8			25.8
Net income (loss)	45.6					45.6
Other comprehensive income (loss), net of tax	(0.1)				(0.1)
Other activity	(1.6)		(1.6)
Ending balance (in shares) at Dec. 01, 2018		277,882,010
Ending balance at Dec. 01, 2018	1,390.1	$ 2.8	1,788.7	(25.8)	192.1	(567.7)
Beginning balance (in shares) at Feb. 23, 2019		277,882,010
Beginning balance at Feb. 23, 2019	1,450.7	$ 2.8	1,814.2	(25.8)	91.3	(431.8)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity-based compensation	11.1		11.1
Employee tax withholding on vesting of phantom units	(12.1)		(12.1)
Net income (loss)	49.0					49.0
Other comprehensive income (loss), net of tax	(18.5)				(18.5)
Other activity	(0.4)		(0.1)			(0.3)
Ending balance (in shares) at Jun. 15, 2019		277,882,010
Ending balance at Jun. 15, 2019	2,054.4	$ 2.8	1,813.1	(25.8)	89.4	174.9
Beginning balance (in shares) at Feb. 23, 2019		277,882,010
Beginning balance at Feb. 23, 2019	1,450.7	$ 2.8	1,814.2	(25.8)	91.3	(431.8)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	398.6
Ending balance (in shares) at Nov. 30, 2019		279,597,312
Ending balance at Nov. 30, 2019	2,410.6	$ 2.8	1,823.5	(25.8)	85.6	524.5
Beginning balance (in shares) at Jun. 15, 2019		277,882,010
Beginning balance at Jun. 15, 2019	2,054.4	$ 2.8	1,813.1	(25.8)	89.4	174.9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity-based compensation	6.5		6.5
Employee tax withholding on vesting of phantom units	(0.9)		(0.9)
Net income (loss)	294.8					294.8
Other comprehensive income (loss), net of tax	(9.3)				(9.3)
Ending balance (in shares) at Sep. 07, 2019		277,882,010
Ending balance at Sep. 07, 2019	$ 2,345.5	$ 2.8	1,818.7	(25.8)	80.1	469.7
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock to Company's parents (in shares)	1,715,302
Equity-based compensation	$ 7.2		7.2
Employee tax withholding on vesting of phantom units	(1.7)		(1.7)
Net income (loss)	54.8					54.8
Other comprehensive income (loss), net of tax	5.5				5.5
Other activity	(0.7)		(0.7)
Ending balance (in shares) at Nov. 30, 2019		279,597,312
Ending balance at Nov. 30, 2019	$ 2,410.6	$ 2.8	$ 1,823.5	$ (25.8)	$ 85.6	$ 524.5