BENEFIT PLANS - Net Periodic Benefit Cost (Income) and Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income (Loss) for Defined Benefit Pension and Other Postretirement Benefit Plans (Detail) - USD ($) $ in Millions	12 Months Ended
	Feb. 27, 2016	Feb. 28, 2015	Feb. 22, 2014
Pension Benefits
Net Periodic Benefit Cost
Service cost	$ 0	$ 0	$ 0
Interest cost	106	121	121
Expected return on plan assets	(142)	(149)	(141)
Amortization of prior service benefit	0	0	0
Amortization of net actuarial loss	79	68	101
Settlement	0	64	0
Net periodic benefit cost (income)	43	104	81
Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income (Loss)
Prior service benefit	0	0	0
Amortization of prior service benefit	0	0	0
Amortization of net actuarial loss	76	195	(259)
Amortization of net actuarial loss	79	66	101
Total expense (benefit) recognized in Other comprehensive income (loss)	(3)	129	(360)
Total expense (benefit) recognized in net periodic benefit cost (income) and Other comprehensive income (loss)	40	233	(279)
Other Postretirement Benefits
Net Periodic Benefit Cost
Service cost	0	1	2
Interest cost	3	4	4
Expected return on plan assets	0	0	0
Amortization of prior service benefit	(15)	(16)	(13)
Amortization of net actuarial loss	3	3	5
Settlement	0	0	0
Net periodic benefit cost (income)	(9)	(8)	(2)
Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income (Loss)
Prior service benefit	(21)	(5)	(11)
Amortization of prior service benefit	15	16	12
Amortization of net actuarial loss	(7)	6	(16)
Amortization of net actuarial loss	3	3	5
Total expense (benefit) recognized in Other comprehensive income (loss)	(16)	14	(20)
Total expense (benefit) recognized in net periodic benefit cost (income) and Other comprehensive income (loss)	$ (25)	$ 6	$ (22)