Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	9 Months Ended
	Dec. 03, 2016	Dec. 05, 2015	Feb. 25, 2017
Income Tax [Line Items]
Discrete Tax Benefit	$ 12	$ 3
Save-A-Lot [Member] | Forecast [Member] | Discontinued Operations, Held-for-sale or Disposed of by Sale [Member] | Minimum [Member]
Income Tax [Line Items]
Valuation allowance			$ 255
Save-A-Lot [Member] | Forecast [Member] | Discontinued Operations, Held-for-sale or Disposed of by Sale [Member] | Maximum [Member]
Income Tax [Line Items]
Valuation allowance			$ 275