A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

No definition available.

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Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

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Amount before tax and reclassification adjustments of other comprehensive income (loss) attributable to parent.

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Amount after tax of other comprehensive income (loss) attributable to parent entity.

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Amount of tax expense (benefit) allocated to other comprehensive income (loss) attributable to parent entity.

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Amount before tax of reclassification adjustments of other comprehensive income (loss) attributable to parent.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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Comprehensive Income - Change in AOCI by Component (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018	Mar. 31, 2019	Sep. 30, 2018	Apr. 01, 2018	Oct. 01, 2017
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balances	$ 105,860	$ 126,878	$ 107,147	$ 134,047
Total other comprehensive income/(loss)	860	(47)	2,726	(2,683)
Ending balances	96,456	114,949	96,456	114,949
Total AOCI
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balances	(1,499)	(3,064)	(3,454)	(150)
Other comprehensive income/(loss) before reclassifications			3,526
Amounts reclassified from AOCI			(29)
Tax effect			(771)
Total other comprehensive income/(loss)	860	(47)	2,726	(2,683)
Cumulative effects of changes in accounting principles					$ 0	$ 89	$ 0	$ (278)
Ending balances	(639)	$ (3,111)	(639)	$ (3,111)
Cumulative Foreign Currency Translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balances			(1,055)
Other comprehensive income/(loss) before reclassifications			(136)
Amounts reclassified from AOCI			0
Tax effect			13
Total other comprehensive income/(loss)			(123)
Ending balances	(1,178)		(1,178)
Unrealized Gains/Losses on Derivative Instruments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balances			810
Other comprehensive income/(loss) before reclassifications			(678)
Amounts reclassified from AOCI			(84)
Tax effect			163
Total other comprehensive income/(loss)			(599)
Ending balances	211		211
Unrealized Gains/Losses on Marketable Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balances			(3,209)
Other comprehensive income/(loss) before reclassifications			4,340
Amounts reclassified from AOCI			55
Tax effect			(947)
Total other comprehensive income/(loss)			3,448
Ending balances	$ 328		$ 328
Accounting Standards Update 2016-01 \| Total AOCI
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Cumulative effects of changes in accounting principles						89
Accounting Standards Update 2016-01 \| Cumulative Foreign Currency Translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Cumulative effects of changes in accounting principles						0
Accounting Standards Update 2016-01 \| Unrealized Gains/Losses on Derivative Instruments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Cumulative effects of changes in accounting principles						0
Accounting Standards Update 2016-01 \| Unrealized Gains/Losses on Marketable Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Cumulative effects of changes in accounting principles						$ 89