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Property and Leases - Components of Lease Costs (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Nov. 03, 2019
Nov. 03, 2019
Leases [Abstract]    
Operating lease cost $ 211 $ 626
Finance lease cost:    
Amortization of leased assets 21 64
Interest on lease liabilities 23 69
Short-term lease cost 30 73
Variable lease cost 53 175
Sublease income (3) (10)
Net lease cost $ 335 $ 997