International Theme Parks Impact of Consolidating Income Statements of International Theme Parks (Detail) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2023	Oct. 01, 2022	Oct. 02, 2021
Schedule of Condensed Consolidating Statement of Operations [Line Items]
Revenues	$ 88,898	$ 82,722	$ 67,418
Costs and expenses	(79,906)	(75,952)	(63,759)
Equity in the loss of investees	782	$ 816	$ 761
International Theme Parks
Schedule of Condensed Consolidating Statement of Operations [Line Items]
Revenues	5,095
Costs and expenses	(4,265)
Equity in the loss of investees	$ (2)