ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - ITEMS RECLASSIFIED OUT OF AOCI (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Aug. 12, 2017	Aug. 13, 2016	Aug. 12, 2017	Aug. 13, 2016
Reclassification out of AOCI and the related tax effects
Amortization of gains and losses on cash flow hedging activities	$ 138	$ 116	$ 315	$ 271
Realized gains on available for sale securities	4,523	4,473	10,897	10,252
Tax expense	189	171	337	521
Net of tax	(353)	(383)	(656)	(1,079)
Total reclassifications, net of tax	11	(8)	24	2
Cash Flow Hedging Activities
Reclassification out of AOCI and the related tax effects
Tax expense			(1)
Total reclassifications, net of tax			1	1
Available for sale Securities
Reclassification out of AOCI and the related tax effects
Tax expense				13
Total reclassifications, net of tax				(14)
Pension and Postretirement Defined Benefit Plans
Reclassification out of AOCI and the related tax effects
Amortization of amounts included in net periodic pension expense	16	11	37	25
Tax expense	(6)	(5)	(14)	(10)
Total reclassifications, net of tax	10	6	23	15
Reclassification out of AOCI | Cash Flow Hedging Activities
Reclassification out of AOCI and the related tax effects
Amortization of gains and losses on cash flow hedging activities	2		2	1
Tax expense	(1)		(1)
Net of tax	$ 1		$ 1	1
Reclassification out of AOCI | Available for sale Securities
Reclassification out of AOCI and the related tax effects
Realized gains on available for sale securities		(27)		(27)
Tax expense		13		13
Net of tax		$ (14)		$ (14)