Other Financial Information - Components of Other Long-Term Liabilities (Detail) - USD ($) $ in Millions	Oct. 02, 2020	Sep. 27, 2019
Other Financial Information [Abstract]
Income taxes payable	$ 170.8	$ 180.3
Deferred revenues	68.5	73.1
Deferred income taxes	101.2	75.3
Contingent consideration	25.7	42.3
Defined benefit pension plans	19.8	31.1
Other	35.8	38.0
Total other long-term liabilities	$ 421.8	$ 440.1

Amount of liability recognized arising from contingent consideration in a business combination, expected to be settled beyond one year or the normal operating cycle, if longer.

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