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Fair Value Measurements - Additional Information (Details) - USD ($)
3 Months Ended 6 Months Ended
Aug. 03, 2019
Aug. 04, 2018
Aug. 03, 2019
Aug. 04, 2018
Feb. 02, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Other indefinite-lived intangible assets impairment charges $ 0 $ 0 $ 0 $ 0  
Other long-lived asset impairment charges 0 0 0 0  
Goodwill impairment charges 0 0 0 0  
Transfers into or out of level 2 0 0 0 0  
Transfers into or out of level 1 0 0 0 0  
Purchases, sales, issuances, or settlements related to recurring level 3 measurements 0 0 $ 0 0  
Document Period End Date     Aug. 03, 2019    
Available-for-sale Securities, Current 294,000,000 286,000,000 $ 294,000,000 286,000,000 $ 288,000,000
Cash and Cash Equivalents, Fair Value Disclosure 15,000,000 14,000,000 15,000,000 $ 14,000,000  
Debt Securities, Available-for-sale, Unrealized Gain (Loss)     0    
Other-than-temporary Impairment Loss, Debt Securities, Available-for-sale $ 0 $ 0 $ 0