XML 127 R59.htm IDEA: XBRL DOCUMENT v3.20.1
Supplemental Financial Information - Product Warranty Liabilities (Detail) - USD ($)
$ in Millions
12 Months Ended
Apr. 24, 2020
Apr. 26, 2019
Apr. 24, 2020
Apr. 26, 2019
Movement In Standard Product Warranty Accrual [Roll Forward]        
Balance at beginning of period $ 40 $ 40    
Expense accrued during the period 26 22    
Warranty costs incurred (25) (22)    
Balance at end of period 41 40    
Standard Product Warranty Accrual, Balance Sheet Classification [Abstract]        
Accrued expenses     $ 26 $ 25
Other long-term liabilities     15 15
Total warranty liabilities $ 41 $ 40 $ 41 $ 40