Derivative Financial Instruments (Details) - USD ($)
$ in Millions
 3 Months Ended
May 02, 2020
May 04, 2019
Feb. 01, 2020
Derivative Instruments, Gain (Loss) [Line Items]      
Discussion of Objectives for Using Interest Rate Derivative Instruments We use derivative financial instruments for hedging and non-trading purposes to manage our exposure to changes in interest rates.    
Description of Location of Interest Rate Cash Flow Hedge Derivative on Balance Sheet The fair value of our interest rate swaps (see Note 7) are recorded in the unaudited Interim Consolidated Balance Sheets as an asset or a liability based upon its change in fair values from its effective date.    
Description of Location of Gain (Loss) on Interest Rate Cash Flow Hedge Derivative in Financial Statements he effective portion of the interest rate swaps' changes in fair values is reported in AOCI (see Note 9), and the ineffective portion is reported in net income/(loss).    
Description of Reclassification of Interest Rate Cash Flow Hedge Gain (Loss) Amounts in AOCI are reclassified into net income/(loss) when the related interest payments affect earnings.    
Description of Interest Rate Derivative Activities We are party to interest rate swap agreements dated May 7, 2015, with notional amounts totaling $1,250 million to fix a portion of our variable LIBOR-based interest payments. The interest rate swap agreements have a weighted-average fixed rate of 2.04%, matured on May 7, 2020, and were designated as cash flow hedges at the inception of the contracts. On September 4, 2018, we entered into additional forward interest rate swap agreements with notional amounts totaling $750 million to fix a portion of our variable LIBOR-based interest payments. The forward interest rate swap agreements have a weighted-average fixed rate of 3.135%, have an effective date from May 7, 2020, to May 7, 2025, and were designated as cash flow hedges at the inception of the contracts.    
Interest Rate Cash Flow Hedge Liability at Fair Value [1] $ 77 $ 25 $ 58
Interest Rate Cash Flow Hedge Asset at Fair Value 0 7 [1] 0
Loss due to discontinuance of hedge accounting 77 0  
Derivative Instruments, Loss Reclassified from Accumulated OCI into Income, Effective Portion 58    
Interest rate swap agreement matured May 7, 2020 [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Derivative, Notional Amount $ 1,250    
Derivative, Average Fixed Interest Rate 2.04%    
Interest rate swap agreement September 4, 2018 [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Derivative, Notional Amount $ 750    
Derivative, Average Fixed Interest Rate 3.135%    
Prepaid Expenses and Other Current Assets [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Interest Rate Cash Flow Hedge Asset at Fair Value $ 0 1 0
Other Liabilities [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Interest Rate Cash Flow Hedge Liability at Fair Value 0 25 [1] 58 [1]
Other Accounts Payable and Accrued Expenses [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Interest Rate Cash Flow Hedge Liability at Fair Value 77 [1] 0 0
Other Assets [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Interest Rate Cash Flow Hedge Asset at Fair Value $ 0 $ 6 [1] $ 0
[1] Derivatives as of May 2, 2020, were not designated as hedging instruments; derivatives as of May 4, 2019, and February 1, 2020, were designated as hedging instruments.