ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - ITEMS RECLASSIFIED OUT OF AOCI (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Nov. 04, 2017	Nov. 05, 2016	Nov. 04, 2017	Nov. 05, 2016
Reclassification out of AOCI and the related tax effects
Amortization of gains and losses on cash flow hedging activities	$ 136	$ 124	$ 453	$ 396
Realized gains on available for sale securities	4,708	4,443	15,606	14,695
Tax expense	215	206	552	727
Net of tax	(397)	(391)	(1,053)	(1,469)
Total reclassifications, net of tax	11	8	35	10
Cash Flow Hedging Activities
Reclassification out of AOCI and the related tax effects
Tax expense			(2)	(1)
Total reclassifications, net of tax			2	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	15	12	52	37
Tax expense	(5)	(4)	(19)	(14)
Total reclassifications, net of tax	10	8	33	23
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	1	4	2
Tax expense	(1)	$ (1)	(2)	(1)
Net of tax	$ 1		$ 2	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)
Tax expense				13
Net of tax				$ (14)