Long-Term Debt (Annual Principal Payments) (Details) - USD ($)
$ in Millions
Feb. 03, 2018
Jan. 28, 2017
Debt Disclosure [Abstract]    
2018 $ 232  
2019 217  
2020 402  
2021 42  
2022 42  
Thereafter 3,128  
Total $ 4,063 $ 4,665