Condensed Consolidating Financial Information Condensed Consolidating Statement of Income (Details) - USD ($) $ in Millions	3 Months Ended										12 Months Ended
	Sep. 28, 2019		Jun. 29, 2019		Mar. 30, 2019	Dec. 29, 2018	Sep. 29, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 30, 2017	Sep. 28, 2019	Sep. 29, 2018	Sep. 30, 2017
Condensed Income Statements, Captions [Line Items]
Revenues	$ 19,100	[1]	$ 20,245	[1]	$ 14,922	$ 15,303	$ 14,306	$ 15,229	$ 14,548	$ 15,351	$ 69,570	$ 59,434	$ 55,137
Operating Expenses											(42,018)	(32,726)	(30,306)
Selling, general, administrative and other											(11,541)	(8,860)	(8,176)
Depreciation and amortization											(4,160)	(3,011)	(2,782)
Costs and Expenses											(57,719)	(44,597)	(41,264)
Restructuring and impairment charges											(1,183)	(33)	(98)
Allocations to non-guarantor subsidiaries											0	0	0
Other income, net											4,357	601	78
Interest expense, net											(978)	(574)	(385)
Equity in the income (loss) of investees, net											(103)	(102)	320
Income from continuing operations before income taxes	1,258		2,018		7,237	3,431					13,944	14,729	13,788
Income taxes											(3,031)	(1,663)	(4,422)
Earnings from subsidiary entities											0	0	0
Net income from continuing operations	914		1,623		5,590	2,786	2,419	3,059	3,115	4,473	10,913	13,066	9,366
Income (loss) from discontinued operations	291		359		21	0					671	0	0
Net income											11,584	13,066	9,366
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Noncontrolling Interest											(472)	(468)	(386)
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Noncontrolling Interest											(58)	0	0
Net income attributable to The Walt Disney Company (Disney)	$ 1,054		$ 1,760		$ 5,452	$ 2,788	$ 2,322	$ 2,916	$ 2,937	$ 4,423	11,054	12,598	8,980
Comprehensive income excluding noncontrolling interest											8,240	13,029	9,431
Reclassifications & Eliminations
Condensed Income Statements, Captions [Line Items]
Revenues											228	(86)	185
Operating Expenses											0	0	0
Selling, general, administrative and other											0	0	0
Depreciation and amortization											0	0	0
Costs and Expenses											0	0	0
Restructuring and impairment charges											0	0	0
Allocations to non-guarantor subsidiaries											0	0	0
Other income, net											(228)	86	(185)
Interest expense, net											0	0	0
Equity in the income (loss) of investees, net											0	0	0
Income from continuing operations before income taxes											0	0	0
Income taxes											0	0	0
Earnings from subsidiary entities											(15,828)	(13,216)	(9,247)
Net income from continuing operations											(15,828)	(13,216)	(9,247)
Income (loss) from discontinued operations											(962)
Net income											(16,790)
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Noncontrolling Interest											0	0	0
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Noncontrolling Interest											0
Net income attributable to The Walt Disney Company (Disney)											(16,790)	(13,216)	(9,247)
Comprehensive income excluding noncontrolling interest											(13,400)	(13,037)	(9,153)
TWDC
Condensed Income Statements, Captions [Line Items]
Revenues											0	0	0
Operating Expenses												0	0
Selling, general, administrative and other											0	0	0
Depreciation and amortization											0	0	0
Costs and Expenses											0	0	0
Restructuring and impairment charges											0	0	0
Allocations to non-guarantor subsidiaries											0	0	0
Other income, net											(236)	0	0
Interest expense, net											(636)	0	0
Equity in the income (loss) of investees, net											0	0	0
Income from continuing operations before income taxes											(872)	0	0
Income taxes											190	0	0
Earnings from subsidiary entities											3,026	0	0
Net income from continuing operations											2,344	0	0
Income (loss) from discontinued operations											671
Net income											3,015
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Noncontrolling Interest											0	0	0
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Noncontrolling Interest											0
Net income attributable to The Walt Disney Company (Disney)											3,015	0	0
Comprehensive income excluding noncontrolling interest											185	0	0
Legacy Disney
Condensed Income Statements, Captions [Line Items]
Revenues											0	0	0
Operating Expenses											0	0	0
Selling, general, administrative and other											(672)	(615)	(450)
Depreciation and amortization											(1)	(1)	(1)
Costs and Expenses											(673)	(616)	(451)
Restructuring and impairment charges											0	0	0
Allocations to non-guarantor subsidiaries											652	576	405
Other income, net											94	41	163
Interest expense, net											(699)	(698)	(510)
Equity in the income (loss) of investees, net											0	0	0
Income from continuing operations before income taxes											(626)	(697)	(393)
Income taxes											136	79	126
Earnings from subsidiary entities											12,802	13,216	9,247
Net income from continuing operations											12,312	12,598	8,980
Income (loss) from discontinued operations											291
Net income											12,603
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Noncontrolling Interest											0	0	0
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Noncontrolling Interest											0
Net income attributable to The Walt Disney Company (Disney)											12,603	12,598	8,980
Comprehensive income excluding noncontrolling interest											9,669	13,029	9,431
Non-Guarantor Subsidiaries
Condensed Income Statements, Captions [Line Items]
Revenues											69,342	59,520	54,952
Operating Expenses											(42,018)	(32,726)	(30,306)
Selling, general, administrative and other											(10,869)	(8,245)	(7,726)
Depreciation and amortization											(4,159)	(3,010)	(2,781)
Costs and Expenses											(57,046)	(43,981)	(40,813)
Restructuring and impairment charges											(1,183)	(33)	(98)
Allocations to non-guarantor subsidiaries											(652)	(576)	(405)
Other income, net											4,727	474	100
Interest expense, net											357	124	125
Equity in the income (loss) of investees, net											(103)	(102)	320
Income from continuing operations before income taxes											15,442	15,426	14,181
Income taxes											(3,357)	(1,742)	(4,548)
Earnings from subsidiary entities											0	0	0
Net income from continuing operations											12,085	13,684	9,633
Income (loss) from discontinued operations											671
Net income											12,756
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Noncontrolling Interest											(472)	(468)	(386)
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Noncontrolling Interest											(58)
Net income attributable to The Walt Disney Company (Disney)											12,226	13,216	9,247
Comprehensive income excluding noncontrolling interest											$ 11,786	$ 13,037	$ 9,153

[1] On March 20, 2019, the Company began consolidating the results of TFCF and Hulu (see Note 4 to the Consolidated Financial Statements). As a result, revenues and operating results in the third and fourth quarter of fiscal 2019 reflected the impact of this transaction.