Condensed Consolidating Financial Information Condensed Consolidating Statement of Cash Flows (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 28, 2019	Sep. 29, 2018	Sep. 30, 2017
Condensed Cash Flow Statements, Captions [Line Items]
Cash provided by operations - continuing operations	$ 5,984	$ 14,295	$ 12,343
Investments in parks, resorts and other property	(4,876)	(4,465)	(3,623)
Acquisitions	(9,901)	(1,581)	(417)
Intercompany investing activities, net	0	0	0
Other	(319)	710	(71)
Cash used in investing activities - continuing operations	(15,096)	(5,336)	(4,111)
Commercial paper borrowings, net	4,318	(1,768)	1,247
Borrowings	38,240	1,056	4,820
Reduction of borrowings	(38,881)	(1,871)	(2,364)
Dividends	(2,895)	(2,515)	(2,445)
Repurchases of common stock	0	(3,577)	(9,368)
Proceeds from Stock Options Exercised	318	210	276
Intercompany financing, net	0	0	0
Contributions from/sales of noncontrolling interests	737	399	17
Acquisitions of noncontrolling and redeemable noncontrolling interests	(1,430)	0	0
Other	(871)	(777)	(1,142)
Cash used in financing activities - continuing operations	(464)	(8,843)	(8,959)
Cash used in discontinued operations	10,974	0	0
Impact of exchange rates on cash, cash equivalents, and restricted cash and Restricted Cash Equivalents	(98)	(25)	31
Change in cash, cash equivalents and restricted cash	1,300	91	(696)
Cash, cash equivalents and restricted cash, beginning of year	4,155	4,064	4,760
Cash, cash equivalents and restricted cash, end of year	5,455	4,155	4,064
Reclassifications & Eliminations
Condensed Cash Flow Statements, Captions [Line Items]
Cash provided by operations - continuing operations	(320)	(190)	(1,871)
Investments in parks, resorts and other property	0	0	0
Acquisitions	0	0	0
Intercompany investing activities, net	(12,888)	1,327	1,856
Other	0	0	0
Cash used in investing activities - continuing operations	(12,888)	1,327	1,856
Commercial paper borrowings, net	0	0	0
Borrowings	0	0	0
Reduction of borrowings	0	0	0
Dividends	320	190	1,871
Repurchases of common stock		0	0
Proceeds from Stock Options Exercised	0	0	0
Intercompany financing, net	12,888	(1,327)	(1,856)
Contributions from/sales of noncontrolling interests	0	0	0
Acquisitions of noncontrolling and redeemable noncontrolling interests	0
Other	0	0	0
Cash used in financing activities - continuing operations	13,208	(1,137)	15
Cash used in discontinued operations	0
Impact of exchange rates on cash, cash equivalents, and restricted cash and Restricted Cash Equivalents	0	0	0
Change in cash, cash equivalents and restricted cash	0	0	0
Cash, cash equivalents and restricted cash, beginning of year	0	0	0
Cash, cash equivalents and restricted cash, end of year	0	0	0
TWDC
Condensed Cash Flow Statements, Captions [Line Items]
Cash provided by operations - continuing operations	340	0	0
Investments in parks, resorts and other property	0	0	0
Acquisitions	(35,702)	0	0
Intercompany investing activities, net	20,396	0	0
Other	0	0	0
Cash used in investing activities - continuing operations	(15,306)	0	0
Commercial paper borrowings, net	5,328	0	0
Borrowings	37,999	0	0
Reduction of borrowings	(35,100)	0	0
Dividends	(1,585)	0	0
Repurchases of common stock		0	0
Proceeds from Stock Options Exercised	234	0	0
Intercompany financing, net	8,712	0	0
Contributions from/sales of noncontrolling interests	0	0	0
Acquisitions of noncontrolling and redeemable noncontrolling interests	0
Other	(68)	0	0
Cash used in financing activities - continuing operations	15,520	0	0
Cash used in discontinued operations	0
Impact of exchange rates on cash, cash equivalents, and restricted cash and Restricted Cash Equivalents	0	0	0
Change in cash, cash equivalents and restricted cash	554	0	0
Cash, cash equivalents and restricted cash, beginning of year	0	0	0
Cash, cash equivalents and restricted cash, end of year	554	0	0
Legacy Disney
Condensed Cash Flow Statements, Captions [Line Items]
Cash provided by operations - continuing operations	(1,800)	336	753
Investments in parks, resorts and other property	0	(3)	(7)
Acquisitions	0	0	0
Intercompany investing activities, net	(1)	(1,327)	(1,856)
Other	0	0	15
Cash used in investing activities - continuing operations	(1)	(1,330)	(1,848)
Commercial paper borrowings, net	(1,010)	(1,768)	1,247
Borrowings	0	997	4,741
Reduction of borrowings	(2,750)	(1,800)	(1,850)
Dividends	(1,470)	(2,515)	(2,445)
Repurchases of common stock		(3,577)	(9,368)
Proceeds from Stock Options Exercised	84	210	276
Intercompany financing, net	5,837	10,343	8,394
Contributions from/sales of noncontrolling interests	0	0	0
Acquisitions of noncontrolling and redeemable noncontrolling interests	0
Other	(257)	(222)	(266)
Cash used in financing activities - continuing operations	434	1,668	729
Cash used in discontinued operations	0
Impact of exchange rates on cash, cash equivalents, and restricted cash and Restricted Cash Equivalents	0	0	0
Change in cash, cash equivalents and restricted cash	(1,367)	674	(366)
Cash, cash equivalents and restricted cash, beginning of year	1,367	693	1,059
Cash, cash equivalents and restricted cash, end of year	0	1,367	693
Non-Guarantor Subsidiaries
Condensed Cash Flow Statements, Captions [Line Items]
Cash provided by operations - continuing operations	7,764	14,149	13,461
Investments in parks, resorts and other property	(4,876)	(4,462)	(3,616)
Acquisitions	25,801	(1,581)	(417)
Intercompany investing activities, net	(7,507)	0	0
Other	(319)	710	(86)
Cash used in investing activities - continuing operations	13,099	(5,333)	(4,119)
Commercial paper borrowings, net	0	0	0
Borrowings	241	59	79
Reduction of borrowings	(1,031)	(71)	(514)
Dividends	(160)	(190)	(1,871)
Repurchases of common stock		0	0
Proceeds from Stock Options Exercised	0	0	0
Intercompany financing, net	(27,437)	(9,016)	(6,538)
Contributions from/sales of noncontrolling interests	737	399	17
Acquisitions of noncontrolling and redeemable noncontrolling interests	(1,430)
Other	(546)	(555)	(876)
Cash used in financing activities - continuing operations	(29,626)	(9,374)	(9,703)
Cash used in discontinued operations	10,974
Impact of exchange rates on cash, cash equivalents, and restricted cash and Restricted Cash Equivalents	(98)	(25)	31
Change in cash, cash equivalents and restricted cash	2,113	(583)	(330)
Cash, cash equivalents and restricted cash, beginning of year	2,788	3,371	3,701
Cash, cash equivalents and restricted cash, end of year	$ 4,901	$ 2,788	$ 3,371