Fair Value Measurements (Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) - Fair value measurements recurring - USD ($) $ in Millions	Aug. 04, 2019	Feb. 03, 2019
Fair value inputs level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative agreements – assets	$ 0	$ 0
Derivative agreements – liabilities	0	0
Total	0	0
Fair value inputs level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative agreements – assets	190	138
Derivative agreements – liabilities	(1)	(11)
Total	189	127
Fair value inputs level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative agreements – assets	0	0
Derivative agreements – liabilities	0	0
Total	$ 0	$ 0