Condensed Consolidating Financial Information Condensed Consolidating Statements of Cash Flows (Details) - USD ($) $ in Millions	9 Months Ended
	Jun. 29, 2019	Jun. 30, 2018
Condensed Cash Flow Statements, Captions [Line Items]
Cash provided by operations - continuing operations	$ 4,266	$ 10,442
Investments in parks, resorts and other property	(3,567)	(3,264)
Acquisitions	(9,901)	(1,581)
Intercompany investing activities, net	0	0
Other	(317)	(298)
Cash used in investing activities - continuing operations	(13,785)	(5,143)
Commercial paper borrowings, net	2,973	453
Borrowings	31,348	1,056
Reduction of borrowings	(19,039)	(1,356)
Dividends	(1,310)	(1,266)
Repurchases of common stock	0	(3,577)
Intercompany financing, net	0	0
Contributions from / sales of noncontrolling interests	544	363
Acquisition of noncontrolling and redeemable noncontrolling interests	(1,430)	0
Proceeds from exercise of stock options	278	129
Other	(831)	(783)
Cash used in financing activities - continuing operations	12,533	(4,981)
Cash provided by (used in) discontinued operations	141	0
Impact of Exchange Rate on Cash, Cash Equivalents and Restricted Cash	47	(51)
Change in Cash, Cash Equivalents and Restricted Cash	3,202	267
Cash, Cash Equivalents and Restricted Cash, Beginning of Period	4,155	4,064
Cash, Cash Equivalents and Restricted Cash, End of Period	7,357	4,331
Reclassifications & Eliminations
Condensed Cash Flow Statements, Captions [Line Items]
Cash provided by operations - continuing operations	(160)	(106)
Investments in parks, resorts and other property	0	0
Acquisitions	0	0
Intercompany investing activities, net	(15,375)	1,601
Other	0	0
Cash used in investing activities - continuing operations	(15,375)	1,601
Commercial paper borrowings, net	0	0
Borrowings	0	0
Reduction of borrowings	0	0
Dividends	0	106
Repurchases of common stock	0	0
Intercompany financing, net	15,535	(1,601)
Contributions from / sales of noncontrolling interests	0	0
Acquisition of noncontrolling and redeemable noncontrolling interests	0
Proceeds from exercise of stock options	0	0
Other	0	0
Cash used in financing activities - continuing operations	15,535	(1,495)
Cash provided by (used in) discontinued operations	0
Impact of Exchange Rate on Cash, Cash Equivalents and Restricted Cash	0	0
Change in Cash, Cash Equivalents and Restricted Cash	0	0
Cash, Cash Equivalents and Restricted Cash, Beginning of Period	0	0
Cash, Cash Equivalents and Restricted Cash, End of Period	0	0
TWDC
Condensed Cash Flow Statements, Captions [Line Items]
Cash provided by operations - continuing operations	133	0
Investments in parks, resorts and other property	0	0
Acquisitions	(35,702)	0
Intercompany investing activities, net	16,400	0
Other	0	0
Cash used in investing activities - continuing operations	(19,302)	0
Commercial paper borrowings, net	3,983	0
Borrowings	31,100	0
Reduction of borrowings	(16,100)	0
Dividends	0	0
Repurchases of common stock	0	0
Intercompany financing, net	805	0
Contributions from / sales of noncontrolling interests	0	0
Acquisition of noncontrolling and redeemable noncontrolling interests	0
Proceeds from exercise of stock options	194	0
Other	(61)	0
Cash used in financing activities - continuing operations	19,921	0
Cash provided by (used in) discontinued operations	0
Impact of Exchange Rate on Cash, Cash Equivalents and Restricted Cash	0	0
Change in Cash, Cash Equivalents and Restricted Cash	752	0
Cash, Cash Equivalents and Restricted Cash, Beginning of Period	0	0
Cash, Cash Equivalents and Restricted Cash, End of Period	752	0
Legacy Disney
Condensed Cash Flow Statements, Captions [Line Items]
Cash provided by operations - continuing operations	(1,170)	250
Investments in parks, resorts and other property	0	(2)
Acquisitions	0	0
Intercompany investing activities, net	(11)	(1,601)
Other	0	0
Cash used in investing activities - continuing operations	(11)	(1,603)
Commercial paper borrowings, net	(1,010)	453
Borrowings	0	997
Reduction of borrowings	(2,250)	(1,300)
Dividends	(1,310)	(1,266)
Repurchases of common stock	0	(3,577)
Intercompany financing, net	4,552	6,116
Contributions from / sales of noncontrolling interests	0	0
Acquisition of noncontrolling and redeemable noncontrolling interests	0
Proceeds from exercise of stock options	84	129
Other	(252)	(221)
Cash used in financing activities - continuing operations	(186)	1,331
Cash provided by (used in) discontinued operations	0
Impact of Exchange Rate on Cash, Cash Equivalents and Restricted Cash	0	0
Change in Cash, Cash Equivalents and Restricted Cash	(1,367)	(22)
Cash, Cash Equivalents and Restricted Cash, Beginning of Period	1,367	693
Cash, Cash Equivalents and Restricted Cash, End of Period	0	671
Non-Guarantor Subsidiaries
Condensed Cash Flow Statements, Captions [Line Items]
Cash provided by operations - continuing operations	5,463	10,298
Investments in parks, resorts and other property	(3,567)	(3,262)
Acquisitions	25,801	(1,581)
Intercompany investing activities, net	(1,014)	0
Other	(317)	(298)
Cash used in investing activities - continuing operations	20,903	(5,141)
Commercial paper borrowings, net	0	0
Borrowings	248	59
Reduction of borrowings	(689)	(56)
Dividends	0	(106)
Repurchases of common stock	0	0
Intercompany financing, net	(20,892)	(4,515)
Contributions from / sales of noncontrolling interests	544	363
Acquisition of noncontrolling and redeemable noncontrolling interests	(1,430)
Proceeds from exercise of stock options	0	0
Other	(518)	(562)
Cash used in financing activities - continuing operations	(22,737)	(4,817)
Cash provided by (used in) discontinued operations	141
Impact of Exchange Rate on Cash, Cash Equivalents and Restricted Cash	47	(51)
Change in Cash, Cash Equivalents and Restricted Cash	3,817	289
Cash, Cash Equivalents and Restricted Cash, Beginning of Period	2,788	3,371
Cash, Cash Equivalents and Restricted Cash, End of Period	$ 6,605	$ 3,660