Impact of Consolidating Income Statements of International Theme Parks (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 28, 2019	Dec. 29, 2018
Schedule of Condensed Consolidating Statement of Operations [Line Items]
Revenues	$ 20,858	$ 15,303
Cost and expenses	(18,017)	(11,885)
Equity in the loss of investees	224	$ 76
International Theme Parks
Schedule of Condensed Consolidating Statement of Operations [Line Items]
Revenues	852
Cost and expenses	(880)
Equity in the loss of investees	$ (3)