Dispositions Changes in Carrying Amount of Goodwill (Detail) - USD ($) $ in Millions		12 Months Ended
		Sep. 28, 2024		Sep. 30, 2023
Goodwill [Roll Forward]
Beginning balance		$ 77,067		$ 77,897
Goodwill Allocation		0
Goodwill, Impairment Loss	[1]	(2,622)		(721)
Goodwill, Transfer to Held-for-Sale		(1,106)
Currency translation adjustments and other, net		(13)		(109)
Ending balance		73,326		77,067
Star India
Goodwill [Roll Forward]
Beginning balance		0		0
Goodwill Allocation		2,445
Goodwill, Impairment Loss		(1,335)	[1]	0
Goodwill, Transfer to Held-for-Sale		(1,106)
Currency translation adjustments and other, net		(4)		0
Ending balance		0		0
Entertainment Segment
Goodwill [Roll Forward]
Beginning balance		55,031		55,488
Goodwill Allocation		(2,445)
Goodwill, Impairment Loss	[1]	(1,287)		(425)
Goodwill, Transfer to Held-for-Sale		0
Currency translation adjustments and other, net		(9)		(32)
Ending balance		51,290		55,031
Sports Segment
Goodwill [Roll Forward]
Beginning balance		16,486		16,859
Goodwill Allocation		0
Goodwill, Impairment Loss		0		(296)	[1]
Goodwill, Transfer to Held-for-Sale		0
Currency translation adjustments and other, net		0		(77)
Ending balance		16,486		16,486
Experiences Segment
Goodwill [Roll Forward]
Beginning balance		5,550		5,550
Goodwill Allocation		0
Goodwill, Impairment Loss		0		0
Goodwill, Transfer to Held-for-Sale		0
Currency translation adjustments and other, net		0		0
Ending balance		$ 5,550		$ 5,550

[1] Current year reflects impairments related to entertainment linear networks and Star India (see Note 18). Prior year reflects impairments at entertainment and international sports linear networks (see Note 18).