Pension and Other Benefit Programs - Defined Benefit Plan Assets Measured at Fair Value (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	Sep. 27, 2014	Sep. 28, 2013
Schedule of Pension and Other Postretirement Benefits Changes in Benefit Obligation and Fair Value of Plan Assets [Line Items]
Asset allocation ranges	100.00%	100.00%
United States Mid Large Cap
Schedule of Pension and Other Postretirement Benefits Changes in Benefit Obligation and Fair Value of Plan Assets [Line Items]
Asset allocation ranges	18.00%	19.00%
United States Mid Large Cap | Shares Held In The Walt Disney Company
Schedule of Pension and Other Postretirement Benefits Changes in Benefit Obligation and Fair Value of Plan Assets [Line Items]
Large cap domestic equities, shares of company common stock	2.9
Large cap domestic equities, value of company common stock	$ 255	$ 185
Asset allocation ranges	2.00%	2.00%