Stockholders' Equity Stockholders' Equity (Reclassifications Out of Accumulated Other Comprehensive Income/ (Loss) (Details) (Details) - USD ($)
$ in Millions
 12 Months Ended
Feb. 02, 2019
Feb. 03, 2018
 [2]
Jan. 28, 2017
 [2]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]      
Reclassification for amortization of prior service (credit)/cost (5) [1] $ 4 $ 4 $ 0
Other comprehensive income/(loss) $ 32 $ 113 $ 18
[1] Net of $(3) million of tax in 2018, $(3) million of tax in 2017 and $0 million of tax in 2016. Pre-tax amounts of $7 million in 2018, $7 million in 2017 and $0 million in 2016 were recognized in Other components of net periodic pension and postretirement benefit cost/(income) in the Consolidated Statement of Operations.
[2] As Adjusted