Comprehensive Income and Accumulated Other Comprehensive Loss - Summary of Items Reclassified Out of Pension and Postretirement Benefit Plan Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Sep. 08, 2018	Sep. 09, 2017	Sep. 08, 2018	Sep. 09, 2017
Accumulated Defined Benefit Plans Adjustment Attributable to Parent
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total reclassifications	$ 0	$ (1)	$ 0	$ (2)
Total reclassifications, net of tax	0	(1)	0	(1)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent | Net periodic benefit income, excluding service cost
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total reclassifications	0	(1)	0	(2)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent | Income tax (benefit) provision
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income tax expense	0	0	0	(1)
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income tax expense			0	(1)
Total reclassifications, net of tax	0	1	0	1
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent | Income tax (benefit) provision
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income tax expense	0	0
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent | Interest expense, net
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total reclassifications	$ 0	$ 1	$ 0	$ 2