BENEFIT PLANS - Amounts Recognized in Accumulated Other Comprehensive Losses for Defined Benefit Pension Plans and Other Postretirement Benefit Plans (Detail) (USD $) In Millions, unless otherwise specified	Feb. 28, 2015	Feb. 22, 2014
Defined Benefit Plan Disclosure [Line Items]
Total recognized in Accumulated other comprehensive loss, net of tax	$ (423)	$ (307)
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Prior service benefit	0	0
Net actuarial loss	(696)	(567)
Total recognized in Accumulated other comprehensive loss	(696)	(567)
Total recognized in Accumulated other comprehensive loss, net of tax	(432)	(324)
Other Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Prior service benefit	45	55
Net actuarial loss	(28)	(25)
Total recognized in Accumulated other comprehensive loss	17	30
Total recognized in Accumulated other comprehensive loss, net of tax	$ 9	$ 17