Net Earnings Per Share - Additional Information (Detail) - $ / shares shares in Millions	4 Months Ended
	Jun. 17, 2017	Jun. 18, 2016	Aug. 01, 2017	Feb. 25, 2017
Schedule Of Computation Of Basic And Diluted Earnings Per Common Share [Line Items]
Continuing operations (in dollars per basic share)	$ 0.04	$ 0.07
Discontinued operations (in dollars per basic share)	0.00	0.10
Basic net earnings per share (in dollars per share)	0.04	0.17
Continuing operations (in dollars per diluted share)	0.04	0.07
Discontinued operations (in dollars per diluted share)	0.00	0.10
Diluted net earnings per share (in dollars per share)	$ 0.04	$ 0.17
Common stock, shares authorized	400			400
Common stock, shares issued	269			268
Continuing Operations [Member]
Schedule Of Computation Of Basic And Diluted Earnings Per Common Share [Line Items]
Antidilutive securities excluded from computation of earnings per share	13	17
Subsequent Event [Member]
Schedule Of Computation Of Basic And Diluted Earnings Per Common Share [Line Items]
Common stock, shares authorized			57
Common stock, shares issued			38
Pro Forma [Member]
Schedule Of Computation Of Basic And Diluted Earnings Per Common Share [Line Items]
Continuing operations (in dollars per basic share)	$ 0.31	$ 0.50
Discontinued operations (in dollars per basic share)	(0.01)	0.72
Basic net earnings per share (in dollars per share)	0.30	1.22
Continuing operations (in dollars per diluted share)	0.30	0.49
Discontinued operations (in dollars per diluted share)	(0.01)	0.71
Diluted net earnings per share (in dollars per share)	$ 0.30	$ 1.20