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Long-term Debt and Borrowing Facilities (Issuance And Repurchase Of Notes) (Narrative) (Details) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended
Apr. 30, 2021
May 01, 2021
May 02, 2020
Loss on Extinguishment of Debt $ 105 $ 105 $ 0
Loss on extinguishment of debt, net of tax 80    
With Subsidiary Guarantee [Member] | 6.875% Fixed Interest Rate Secured Notes due July 2025 [Member]      
Extinguishment of debt 750    
With Subsidiary Guarantee [Member] | Fixed Rate 5.625 Percent Notes Due February 2022 [Member]      
Extinguishment of debt $ 285