Comprehensive Income and Accumulated Other Comprehensive Loss - Schedule of Changes in Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Millions		4 Months Ended
		Jun. 16, 2018	Jun. 17, 2017	Feb. 24, 2018	Feb. 25, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss		$ 488	$ 397	$ 507	$ 383
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Net current-period Other comprehensive income	[1]	0	0
Net current-period Other comprehensive income		0	0
Accumulated Defined Benefit Plans Adjustment Including Portion Attributable to Noncontrolling Interest [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss		(271)	(276)	(210)	(276)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Net current-period Other comprehensive income		0	0
Adoption of ASU 2018-02		(61)
Accumulated Net Gain (Loss) from Cash Flow Hedges Including Portion Attributable to Noncontrolling Interest [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss		0	(2)	0	(2)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Net current-period Other comprehensive income		0	0
Adoption of ASU 2018-02		0
AOCI Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss		(271)	(278)	$ (210)	$ (278)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Net current-period Other comprehensive income		0	$ 0
Adoption of ASU 2018-02		$ (61)

[1] Amounts are net of tax expense (benefit) of $0 and $(1) for the first quarters of fiscal 2019 and 2018, respectively.