Stockholders' Equity (Details) - USD ($)
shares in Millions, $ in Millions
3 Months Ended 6 Months Ended
Aug. 04, 2018
Jul. 29, 2017
Aug. 04, 2018
Jul. 29, 2017
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
February 3, 2018, shares     312.0  
February 3, 2018     $ 1,383  
Net income/(loss) $ (101) $ (48) [1] (179) $ (235) [1]
Other comprehensive income/(loss) $ 1 $ 2 [1] 7 $ 27
Stock-based compensation and other     $ 5  
August 4, 2018, shares 314.8 310.3 314.8 310.3
August 4, 2018 $ 1,216   $ 1,216  
Common Stock [Member]        
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
February 3, 2018, shares     312.0  
February 3, 2018     $ 156  
Stock-based compensation, shares     2.8  
Stock-based compensation and other     $ 1  
August 4, 2018, shares 314.8   314.8  
August 4, 2018 $ 157   $ 157  
Additional Paid-in Capital [Member]        
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
February 3, 2018     4,705  
Stock-based compensation and other     4  
August 4, 2018 4,709   4,709  
Reinvested Earnings/(Accumulated Deficit) [Member]        
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
February 3, 2018     (3,118)  
Net income/(loss)     (179)  
August 4, 2018 (3,297)   (3,297)  
Accumulated Other Comprehensive Income/(Loss) [Member]        
Increase (Decrease) in Stockholders' Equity [Roll Forward]        
February 3, 2018     (360)  
Other comprehensive income/(loss)     7  
August 4, 2018 $ (353)   $ (353)  
[1] As Adjusted