Revenues - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
Sep. 30, 2023	Oct. 01, 2022	Oct. 02, 2021
Contract with Customer, Performance Obligation Satisfied in Previous Period	$ 900	$ 1,100	$ 1,300
Revenue, Remaining Performance Obligation, Amount	15,000
Contract with Customer, Liability, Revenue Recognized	5,100	3,600	$ 2,900
Broadcast programming
Long-Term Receivables, net of allowance for credit losses	600	600
Mortgage Receivable
Long-Term Receivables, net of allowance for credit losses	700	$ 600
Scenario, Unsatisfied performance obligation recognized in fiscal 2023
Revenue, Remaining Performance Obligation, Amount	6,000
Scenario, Unsatisfied performance obligation recognized in fiscal 2024
Revenue, Remaining Performance Obligation, Amount	4,000
Scenario, Unsatisfied performance obligation recognized in fiscal 2025
Revenue, Remaining Performance Obligation, Amount	2,000
Scenario, Unsatisfied performance obligation recognized thereafter
Revenue, Remaining Performance Obligation, Amount	$ 3,000

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-8

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- Definition

Amount of revenue recognized from performance obligation satisfied or partially satisfied in previous reporting periods. Includes, but is not limited to, change in transaction price.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12A
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-12A

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- Definition

Amount, after allowance for credit loss, of accounts and financing receivables, classified as noncurrent. Includes, but is not limited to, notes and loan receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481990/310-10-45-2

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- Definition

Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (a)
-SubTopic 10
-Topic 606
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-13

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