Fair Value Measurements Fair Value Measurements - Nonrecurring (Details) - Fair Value, Measurements, Nonrecurring [Member] - Level 3 - USD ($) $ in Millions		12 Months Ended
		Feb. 03, 2018	Jan. 28, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset impairment charges		$ 10	$ 36
Remaining net carrying value	[1]	0	0
Selling, General and Administrative Expenses [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset impairment charges		9	28
Remaining net carrying value	[1]	0	0
Restructuring charges
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset impairment charges	[2]	1	8
Remaining net carrying value	[1],[2]	$ 0	$ 0

[1] Remaining net carrying value approximates fair value. Because assets subject to long-lived asset impairment are not measured at fair value on a recurring basis, certain fair value measurements presented in the table may reflect values at earlier measurement dates and may no longer represent the fair values at February 3, 2018, and January 28, 2017

[2] See Note 4, Restructuring Charges, for additional information.