Dispositions Changes in Carrying Amount of Goodwill (Detail) - USD ($) $ in Millions		12 Months Ended
		Sep. 27, 2025	Sep. 28, 2024
Goodwill [Roll Forward]
Beginning balance		$ 73,326	$ 77,067
Goodwill Allocation			$ 0
Goodwill, Impairment Loss, Statement of Income or Comprehensive Income [Extensible Enumeration]			Restructuring and impairment charges
Goodwill, Impairment Loss	[1]		$ (2,622)
Goodwill, Transfer to Held-for-Sale			(1,106)
Currency translation adjustments and other, net		(32)	(13)
Ending balance		73,294	73,326
Entertainment Segment
Goodwill [Roll Forward]
Beginning balance		51,290	55,031
Goodwill Allocation			(2,445)
Goodwill, Impairment Loss	[1]		(1,287)
Goodwill, Transfer to Held-for-Sale			0
Currency translation adjustments and other, net		(32)	(9)
Ending balance		51,258	51,290
Sports Segment
Goodwill [Roll Forward]
Beginning balance		16,486	16,486
Goodwill Allocation			0
Goodwill, Impairment Loss			0
Goodwill, Transfer to Held-for-Sale			0
Currency translation adjustments and other, net		0	0
Ending balance		16,486	16,486
Experiences Segment
Goodwill [Roll Forward]
Beginning balance		5,550	5,550
Goodwill Allocation			0
Goodwill, Impairment Loss			0
Goodwill, Transfer to Held-for-Sale			0
Currency translation adjustments and other, net		0	0
Ending balance		5,550	5,550
Star India
Goodwill [Roll Forward]
Beginning balance		0	0
Goodwill Allocation			2,445
Goodwill, Impairment Loss			(1,335)
Goodwill, Transfer to Held-for-Sale			(1,106)
Currency translation adjustments and other, net		0	(4)
Ending balance		$ 0	$ 0

[1] Fiscal 2024 reflects impairments related to entertainment linear networks and Star India (see Note 18).