Details about AOCI Components Reclassified to Net Income (Details) - USD ($) $ in Millions	3 Months Ended
Dec. 30, 2017	Dec. 31, 2016
Details about AOCI Components Reclassified to Net Income
Interest expense, net	$ (129)	$ (99)
Primarily revenue	15,351	14,784
Income taxes	728	(1,237)
Net income attributable to The Walt Disney Company (Disney)	4,423	2,479
Reclassification out of Accumulated Other Comprehensive Income
Details about AOCI Components Reclassified to Net Income
Net income attributable to The Walt Disney Company (Disney)	(73)	(24)
Gain/(loss) in net income from Cash flow hedges \| Reclassification out of Accumulated Other Comprehensive Income
Details about AOCI Components Reclassified to Net Income
Primarily revenue	(20)	70
Income taxes	8	(26)
Net income attributable to The Walt Disney Company (Disney)	(12)	44
Gain/(loss) in net income from Pension and postretirement medical expense \| Reclassification out of Accumulated Other Comprehensive Income
Details about AOCI Components Reclassified to Net Income
Primarily included in the computation of net periodic benefit cost	(96)	(108)
Income taxes	35	40
Net income attributable to The Walt Disney Company (Disney)	$ (61)	$ (68)

Amount of net periodic benefit cost (credit) for defined benefit plan.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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