Related Parties and Related Commitments and Contingencies - Combined Consolidated Income Statement (Details) - USD ($) $ in Millions	3 Months Ended
	Oct. 03, 2025	Sep. 27, 2024
Related Party Transaction [Line Items]
Interest income on notes due from Western Digital Corporation	$ (40)	$ (2)
Interest expense on notes due to Western Digital Corporation	16	3
Research and development	316	283
Selling, general and administrative	179	130
Business separation costs	9	20
Employee termination and other	(3)	2
Total operating expenses	511	435
Related Party
Related Party Transaction [Line Items]
Interest income on notes due from Western Digital Corporation	0	(1)
Interest expense on notes due to Western Digital Corporation	0	2
Research and development	0	187
Selling, general and administrative	0	113
Business separation costs	0	2
Employee termination and other	0	20
Total operating expenses	$ 0	$ 322