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Fair Value Measurements (Liabilities Measured at Fair Value on a Recurring and Nonrecurring Basis) (Details) - USD ($)
3 Months Ended 12 Months Ended
Nov. 03, 2019
Feb. 02, 2020
Feb. 03, 2019
Jan. 28, 2018
Fair Value, Assets and Liabilities Measured on Non-Recurring Basis[Line Items]        
Goodwill, impairment loss   $ 0 $ 0 $ 0
Carrying value of senior notes   29,344,000,000 26,814,000,000  
Fair Value, Nonrecurring | Fair Value (Level 1) | Senior Loans        
Fair Value, Assets and Liabilities Measured on Non-Recurring Basis[Line Items]        
Fair value of senior notes   $ 34,102,000,000 $ 28,348,000,000  
US, Canada, and Mexico        
Fair Value, Assets and Liabilities Measured on Non-Recurring Basis[Line Items]        
Goodwill, impairment loss $ 0