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Fair Value Measurements - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 26, 2020
Sep. 28, 2019
Sep. 26, 2020
Sep. 28, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]        
Asset impairment charges $ 10 $ 5 $ 423 $ 50
Impairment of goodwill and other intangible assets     363  
Impairment of operating lease ROU assets $ 7   $ 42  
Retail Stores | Level 2        
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]        
Percentage used for analysis 8.00%