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OTHER FINANCIAL STATEMENT DETAILS - Property and equipment, net (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 27, 2026	Jun. 28, 2025	Jun. 27, 2026	Jun. 28, 2025	Dec. 27, 2025
Property and equipment, net
Total property and equipment, gross	$ 684		$ 684		$ 644
Less: accumulated depreciation	(212)		(212)		(171)
Total property and equipment, net	472		472		473
Depreciation expenses	22	$ 18	42	$ 36
Computers, electronic equipment and software
Property and equipment, net
Total property and equipment, gross	271		271		245
Vehicles
Property and equipment, net
Total property and equipment, gross	10		10		10
Office furniture and equipment
Property and equipment, net
Total property and equipment, gross	13		13		11
Buildings
Property and equipment, net
Total property and equipment, gross	332		332		322
Leasehold improvements
Property and equipment, net
Total property and equipment, gross	$ 58		$ 58		$ 56

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