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Acquisition (Narrative) (Details) - USD ($)
$ in Millions
12 Months Ended
Aug. 07, 2019
May 09, 2019
Oct. 01, 2018
Feb. 01, 2020
Feb. 02, 2019
Business Acquisition [Line Items]          
Total purchase price, net of cash acquired     $ 787 $ 145 $ 787
Intangible assets [1]     373    
Goodwill     490 $ 984 $ 915
Transaction costs     13    
Critical Signal Technologies, Inc. [Member]          
Business Acquisition [Line Items]          
Total purchase price, net of cash acquired   $ 125      
Goodwill   52      
Transaction costs   3      
BioSensics, LLC [Member]          
Business Acquisition [Line Items]          
Total purchase price, net of cash acquired $ 20        
Intangible assets $ 4        
Amortization period 3 years        
Goodwill $ 19        
Customer Relationships [Member]          
Business Acquisition [Line Items]          
Intangible assets     235    
Customer Relationships [Member] | Critical Signal Technologies, Inc. [Member]          
Business Acquisition [Line Items]          
Intangible assets   $ 83      
Amortization period   15 years      
Tradename [Member]          
Business Acquisition [Line Items]          
Intangible assets     63    
Developed Technology [Member]          
Business Acquisition [Line Items]          
Intangible assets     52    
Commercial customer relationships          
Business Acquisition [Line Items]          
Intangible assets     $ 23    
[1] The adjusted fair value of Intangible assets included consumer customer relationships of $235 million (amortized over 5 years), tradename of $63 million (amortized over 8 years), developed technology of $52 million (amortized over 5 years) and commercial customer relationships of $23 million (amortized over 10 years).