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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- Definition

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
	Dec. 28, 2019	Dec. 29, 2018	Sep. 29, 2019	Sep. 30, 2018
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balances	$ 90,488	$ 107,147
Total other comprehensive income/(loss)	30	(223)
Ending balances	89,531	117,892
Total AOCI
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balances	(584)	(3,454)
Other comprehensive income/(loss) before reclassifications	552
Amounts reclassified from AOCI	(502)
Tax effect	(20)
Total other comprehensive income/(loss)	30	(223)
Cumulative effects of changes in accounting principles			$ 136	$ 89
Ending balances	(418)	$ (3,588)
Cumulative Foreign Currency Translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balances	(1,463)
Other comprehensive income/(loss) before reclassifications	207
Amounts reclassified from AOCI	0
Tax effect	(5)
Total other comprehensive income/(loss)	202
Cumulative effects of changes in accounting principles			0
Ending balances	(1,261)
Unrealized Gains/Losses on Derivative Instruments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balances	172
Other comprehensive income/(loss) before reclassifications	182
Amounts reclassified from AOCI	(489)
Tax effect	20
Total other comprehensive income/(loss)	(287)
Ending balances	21
Unrealized Gains/Losses on Marketable Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balances	707
Other comprehensive income/(loss) before reclassifications	163
Amounts reclassified from AOCI	(13)
Tax effect	(35)
Total other comprehensive income/(loss)	115
Cumulative effects of changes in accounting principles			0
Ending balances	$ 822
Accounting Standards Update 2017-12 \| Total AOCI
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Cumulative effects of changes in accounting principles			136
Accounting Standards Update 2017-12 \| Unrealized Gains/Losses on Derivative Instruments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Cumulative effects of changes in accounting principles			$ 136