States whether the entity was in compliance with the debt covenants throughout the reporting period, and describes facts and circumstances of any compliance failure.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Date the debt instrument was issued, in CCYY-MM-DD format.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Debt Debt (Narrative) (Details) - USD ($) $ in Millions	1 Months Ended		3 Months Ended
Debt Debt (Narrative) (Details) - USD ($) $ in Millions	Feb. 28, 2018	Nov. 30, 2017	Jul. 01, 2018	Oct. 01, 2017
Debt Instrument [Line Items]
Long-term debt covenant compliance			The indentures under which the above notes were issued also require us to maintain compliance with certain covenants, including limits on future liens and sale and leaseback transactions on certain material properties. As of July 1, 2018, we were in compliance with all applicable covenants.
Two Point Two Percentage Senior Notes [Member]
Debt Instrument [Line Items]
Stated Interest Rate			2.20%
Debt Instrument, Face Amount			$ 500.0	$ 0.0
Two Point Two Percentage Senior Notes [Member]
Debt Instrument [Line Items]
Stated Interest Rate			3.75%
Debt Instrument, Face Amount			$ 500.0	0.0
PointThreeSevenTwoPercentageYenDenominatedSeniorNotes [Member]
Debt Instrument [Line Items]
Stated Interest Rate			0.372%
Debt Instrument, Face Amount			$ 768.0	755.3
Three Point One Percentage Senior Notes [Member]
Debt Instrument [Line Items]
Stated Interest Rate			3.50%
Debt Instrument, Face Amount			$ 600.0	$ 0.0
Senior Notes [Member] \| Two Point Two Percentage Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Issuance Date		Nov. 22, 2017
Senior Notes [Member] \| Two Point Two Percentage Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Issuance Date		Nov. 22, 2017
Senior Notes [Member] \| Three Point One Percentage Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Issuance Date	Feb. 28, 2018