Consolidated Statements of Comprehensive Loss - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Jun. 27, 2020	Jun. 29, 2019	Jun. 27, 2020	Jun. 29, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 136.4	$ 93.9	$ 616.9	$ (80.1)
Changes in foreign currency translation adjustment	1.4	(2.4)	4.3	(3.2)
Changes in value of hedged interest rate swaps and interest rate caps, net of tax of $(1.5) and $(7.9) for the three and nine months ended June 27, 2020 and $0.4 and $1.2 for the three and nine months ended June 29, 2019.	(4.7)	(2.1)	(25.9)	(7.5)
Loss reclassified from accumulated other comprehensive loss to the statements of operations	0.3	0.8	2.0	2.0
Other comprehensive loss	(3.0)	(3.7)	(19.6)	(8.7)
Comprehensive income (loss)	133.4	90.2	597.3	(88.8)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest	1.5	0.0	3.4	0.0
Comprehensive Income	134.9	90.2	600.7	(88.8)
Change in value of hedged interest rate swap and interest rate cap, tax	$ (1.5)	$ 0.4	$ (7.9)	$ 1.2

Comprehensive Income

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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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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 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, attributable to parent entity.

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Amount of tax expense (benefit), after reclassification adjustments, of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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Amount after tax of other comprehensive income (loss) attributable to noncontrolling interests.

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