COMPREHENSIVE INCOME (LOSS) AND ACCUMULATED COMPREHENSIVE LOSS - Schedule of Changes in Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions		12 Months Ended
		Feb. 24, 2018	Feb. 25, 2017	Feb. 27, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balances		$ 383	$ (433)	$ (636)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax		69	97	(41)
Amortization of amounts included in net periodic benefit cost		(2)	19	42
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax		(1)	(2)
Pension settlement charge			26
Recognition of pension and other postretirement benefit obligations(1)	[1]	66	142	5
Other Comprehensive Income (Loss), Net of Tax		68	144	1
Balances		507	383	(433)
Benefit Plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balances		(276)	(418)	(423)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax		68	97	(37)
Amortization of amounts included in net periodic benefit cost		(2)	19	42
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax		0	0
Pension settlement charge			26
Recognition of pension and other postretirement benefit obligations(1)		(66)	142	(5)
Balances		(210)	(276)	(418)
Interest Rate Swap
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balances		(2)	(4)	0
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax		1	2	(4)
Other Comprehensive Income (Loss), Net of Tax		2	2	(4)
Balances		0	(2)	(4)
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balances		(278)	(422)	(423)
Other Comprehensive Income (Loss), Net of Tax		68	144	1
Balances		$ (210)	$ (278)	$ (422)

[1] Amounts are net of tax expense of $20, $70, and $14 for fiscal 2018, fiscal 2017 and fiscal 2016, respectively.