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Income Taxes (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Aug. 03, 2019
Aug. 04, 2018
Aug. 03, 2019
Aug. 04, 2018
Feb. 02, 2019
Effective Income Tax Rate, Continuing Operations 10.10% 23.20% 24.00% 21.70%  
Income Taxes Paid $ 169 $ 255 $ 181 $ 266  
Unrecognized Tax Benefits         $ 114
Unrecognized Tax Benefits that Would Impact Effective Tax Rate         $ 104
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities     33    
Tax Adjustments, Settlements, and Unusual Provisions     17    
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit $ 56   $ 56