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Revenues - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 29, 2025	Mar. 30, 2024	Mar. 29, 2025	Mar. 30, 2024	Sep. 28, 2024
Contract with Customer, Performance Obligation Satisfied in Previous Period	$ 600	$ 300	$ 600	$ 600
Revenue, Remaining Performance Obligation, Amount	15,000		15,000
Contract with Customer, Liability, Revenue Recognized	1,000	$ 900	4,500	$ 4,400
Syndicated programming
Long-term receivables, net of allowance for credit losses	300		300		$ 300
Mortgage Receivable
Long-term receivables, net of allowance for credit losses	700		700		$ 700
Unsatisfied performance obligation recognized in fiscal 2025
Revenue, Remaining Performance Obligation, Amount	3,000		3,000
Unsatisfied performance obligation recognized in fiscal 2026
Revenue, Remaining Performance Obligation, Amount	5,000		5,000
Unsatisfied performance obligation recognized in fiscal 2027
Revenue, Remaining Performance Obligation, Amount	3,000		3,000
Unsatisfied performance obligation recognized thereafter
Revenue, Remaining Performance Obligation, Amount	$ 4,000		$ 4,000