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Supplemental Financial Statement Data - Schedule of Current Portion of the Warranty Accrual (Details) - USD ($)
$ in Millions
Dec. 27, 2024
Jun. 28, 2024
Dec. 29, 2023
Jun. 30, 2023
Jul. 01, 2022
Jul. 02, 2021
Warranty accrual:            
Current portion $ 22 $ 27        
Long-term portion 22 21        
Total warranty accrual 44 48 $ 43 $ 42    
The Flash Business of Western Digital Corporation [Member]            
Warranty accrual:            
Current portion   27   23    
Long-term portion   21   19    
Total warranty accrual   48   $ 42 $ 52 $ 48
Sandisk Corporation [Member]            
Warranty accrual:            
Total warranty accrual $ 44 $ 48