Disaggregation of Revenue by Major Source (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 29, 2025	Mar. 30, 2024	Mar. 29, 2025	Mar. 30, 2024
Disaggregation of Revenue [Line Items]
Revenues	$ 23,621	$ 22,083	$ 48,311	$ 45,632
Subscription fees
Disaggregation of Revenue [Line Items]
Revenues	5,643	5,222	11,135	10,144
Affiliate fees
Disaggregation of Revenue [Line Items]
Revenues	3,963	4,138	7,927	8,280
Advertising
Disaggregation of Revenue [Line Items]
Revenues	2,755	2,721	5,995	6,069
Theme park admissions
Disaggregation of Revenue [Line Items]
Revenues	2,919	2,806	6,006	5,788
Resorts and vacations
Disaggregation of Revenue [Line Items]
Revenues	2,359	2,101	4,580	4,219
Retail and wholesale sales of merchandise, food and beverage
Disaggregation of Revenue [Line Items]
Revenues	2,333	2,266	4,905	4,743
Merchandise licensing
Disaggregation of Revenue [Line Items]
Revenues	852	788	1,944	1,947
TV/VOD and home entertainment distribution
Disaggregation of Revenue [Line Items]
Revenues	998	739	2,019	1,541
Theatrical distribution licensing
Disaggregation of Revenue [Line Items]
Revenues	646	123	1,288	374
Other
Disaggregation of Revenue [Line Items]
Revenues	1,153	1,179	2,512	2,527
Entertainment Segment
Disaggregation of Revenue [Line Items]
Revenues	10,682	9,796	21,554	19,777
Entertainment Segment \| Subscription fees
Disaggregation of Revenue [Line Items]
Revenues	5,215	4,805	10,280	9,312
Entertainment Segment \| Affiliate fees
Disaggregation of Revenue [Line Items]
Revenues	1,643	1,759	3,298	3,525
Entertainment Segment \| Advertising
Disaggregation of Revenue [Line Items]
Revenues	1,598	1,771	3,496	3,768
Entertainment Segment \| Merchandise licensing
Disaggregation of Revenue [Line Items]
Revenues	148	136	313	328
Entertainment Segment \| TV/VOD and home entertainment distribution
Disaggregation of Revenue [Line Items]
Revenues	948	669	1,891	1,414
Entertainment Segment \| Theatrical distribution licensing
Disaggregation of Revenue [Line Items]
Revenues	646	123	1,288	374
Entertainment Segment \| Other
Disaggregation of Revenue [Line Items]
Revenues	484	533	988	1,056
Sports Segment
Disaggregation of Revenue [Line Items]
Revenues	4,534	4,312	9,384	9,147
Sports Segment \| Subscription fees
Disaggregation of Revenue [Line Items]
Revenues	428	417	855	832
Sports Segment \| Affiliate fees
Disaggregation of Revenue [Line Items]
Revenues	2,652	2,678	5,282	5,347
Sports Segment \| Advertising
Disaggregation of Revenue [Line Items]
Revenues	1,157	950	2,499	2,301
Sports Segment \| TV/VOD and home entertainment distribution
Disaggregation of Revenue [Line Items]
Revenues	50	70	128	127
Sports Segment \| Other
Disaggregation of Revenue [Line Items]
Revenues	247	197	620	540
Experiences Segment
Disaggregation of Revenue [Line Items]
Revenues	8,889	8,393	18,304	17,525
Experiences Segment \| Theme park admissions
Disaggregation of Revenue [Line Items]
Revenues	2,919	2,806	6,006	5,788
Experiences Segment \| Resorts and vacations
Disaggregation of Revenue [Line Items]
Revenues	2,359	2,101	4,580	4,219
Experiences Segment \| Retail and wholesale sales of merchandise, food and beverage
Disaggregation of Revenue [Line Items]
Revenues	2,333	2,266	4,905	4,743
Experiences Segment \| Merchandise licensing
Disaggregation of Revenue [Line Items]
Revenues	704	652	1,631	1,619
Experiences Segment \| Other
Disaggregation of Revenue [Line Items]
Revenues	574	568	1,182	1,156
Segment Eliminations
Disaggregation of Revenue [Line Items]
Revenues	(484)	(418)	(931)	(817)
Segment Eliminations \| Affiliate fees
Disaggregation of Revenue [Line Items]
Revenues	(332)	(299)	(653)	(592)
Segment Eliminations \| Other
Disaggregation of Revenue [Line Items]
Revenues	$ (152)	$ (119)	$ (278)	$ (225)