DEBT OBLIGATIONS (Details) - USD ($) $ in Millions	4 Months Ended	12 Months Ended
	May. 23, 2015	Jan. 31, 2015
Debt
Total debt, excluding capital leases and financing obligations	$ 10,746	$ 11,026
Less current portion	(1,549)	(1,844)
Total long-term debt, excluding capital leases and financing obligations	9,197	9,182
Senior notes due through 2043
Debt
Total debt, excluding capital leases and financing obligations	$ 9,229	$ 9,224
Interest rate, minimum range (as a percent)	0.76%	0.76%
Interest rate, maximum range (as a percent)	8.00%	8.00%
Mortgages due in varying amounts through 2027
Debt
Total debt, excluding capital leases and financing obligations	$ 71	$ 73
Interest rate, minimum range (as a percent)	5.00%	5.00%
Interest rate, maximum range (as a percent)	12.75%	12.75%
Other
Debt
Total debt, excluding capital leases and financing obligations	$ 456	$ 454
Commercial paper due through June 2015
Debt
Total debt, excluding capital leases and financing obligations	$ 990	$ 1,275
Interest rate, minimum range (as a percent)	0.37%	0.37%
Interest rate, maximum range (as a percent)	0.46%	0.46%