International Theme Parks Impact of Consolidating Income Statements of International Theme Parks (Detail) - USD ($) $ in Millions	12 Months Ended
	Sep. 28, 2024	Sep. 30, 2023	Oct. 01, 2022
Schedule of Consolidating Statement of Income [Line Items]
Revenues	$ 91,361	$ 88,898	$ 82,722
Costs and expenses	(79,447)	$ (79,906)	$ (75,952)
International Theme Parks
Schedule of Consolidating Statement of Income [Line Items]
Revenues	5,783
Costs and expenses	$ (4,716)