BENEFIT PLANS - Amounts Recognized in Accumulated Other Comprehensive Losses for Defined Benefit Pension Plans and Other Postretirement Benefit Plans (Detail) - USD ($) $ in Millions	Feb. 25, 2017	Feb. 27, 2016
Defined Benefit Plan Disclosure [Line Items]
Total recognized in Accumulated other comprehensive loss, net of tax	$ (278)	$ (422)
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Prior service benefit	0	0
Net actuarial loss	(478)	(693)
Total recognized in Accumulated other comprehensive loss	(478)	(693)
Total recognized in Accumulated other comprehensive loss, net of tax	(293)	(438)
Other Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Prior service benefit	42	50
Net actuarial loss	(13)	(17)
Total recognized in Accumulated other comprehensive loss	29	33
Total recognized in Accumulated other comprehensive loss, net of tax	$ 17	$ 20