Consolidated Statement of Other Comprehensive Income Statement - USD ($) $ in Millions	12 Months Ended
Sep. 28, 2018	Sep. 29, 2017	Sep. 30, 2016
Statement of Comprehensive Income [Abstract]
Net Income	$ 918.4	$ 1,010.2	$ 995.2
Other Comprehensive Income, Net of Tax
Fair value of investments	(0.1)	0.9	0.0
Pension adjustments	0.0	0.7	(1.8)
Foreign currency translation adjustment	(0.2)	0.8	(0.9)
Comprehensive income	$ 918.1	$ 1,012.6	$ 992.5

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 5
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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Amount after tax and reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities. Excludes amounts related to other than temporary impairment (OTTI) loss.

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Amount of tax expense (benefit), after reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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Amount, after tax, before reclassification adjustment, of (increase) decrease in accumulated other comprehensive income of defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

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