CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME/(LOSS) CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME/(LOSS) Parenthetical - USD ($)
$ in Millions
 12 Months Ended
Feb. 02, 2019
Feb. 03, 2018
Jan. 28, 2017
Net actuarial gain/(loss) arising during the period, tax $ 10 $ 36 $ 1
Prior service credit/(cost) arising during the period, tax 0 0 (3)
Other Comprehensive Income Loss Reclassification Pension And Other Postretirement Benefit Plans Settlement Adjustment In Net Periodic Benefit Cost Tax Amount (3) (5)  
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, Tax 1 (9) (1)
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, Tax (3) (3) 0
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax 4 (3) (2)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax 0 (3) (5)
Other components of net periodic pension and postretirement cost/(income) [Member]      
Other Comprehensive Income Loss Reclassification Pension And Other Postretirement Benefit Plans Settlement Adjustment In Net Periodic Benefit Cost Gross Amount 7 13  
Reclassification for amortization of net actuarial (gain)/loss included in net periodic benefit expense/(income), gross amount 3 (25) (2)
Amortization of prior service (credit)/cost 7 7 0
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement and Curtailment Gain (Loss), after Tax   5  
Interest Expense [Member]      
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax $ (2) $ 10 $ 13