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Shareholders' Equity Market-Based Share Awards (Details) - Market-Based Share Awards [Member] - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Feb. 02, 2019
Feb. 03, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number 1,187,000 1,422,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value $ 40.07 $ 36.35
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted 371,000  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value $ 74.27  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period 557,000  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value $ 42.04  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period 49,000  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value $ 40.33  
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized $ 13  
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition 1 year 6 months 20 days