Pension and Other Benefit Programs - Defined Benefit Plan Assets Measured at Fair Value (Parenthetical) (Detail) - United States Mid Large Cap - Shares Held In The Walt Disney Company - USD ($) shares in Millions, $ in Millions	Sep. 27, 2025	Sep. 28, 2024
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	2.9
Large cap domestic equities, value of company common stock	$ 327	$ 278