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v3.19.1

Fair Value Measurements - Additional Information (Detail) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 30, 2019 | Mar. 31, 2018 | Mar. 30, 2019 | Mar. 31, 2018
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |  |
Intangible asset and equipment impairment charges | $ 443,800,000 |  | $ 443,800,000 | $ 46,000,000
Goodwill impairment charge | 0 | $ 685,700,000 | 0 | $ 685,700,000
Borrowed principal | 1,000,000,000 |  | 1,000,000,000 |
Credit Agreement |  |  |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |  |
Borrowed principal | 1,600,000,000 |  | 1,600,000,000 |
Securitization Program |  |  |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |  |
Borrowed principal | 207,000,000 |  | 207,000,000 |
2025 Senior Notes |  |  |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |  |
Fair value of debt instrument | 939,300,000 |  | 939,300,000 |
2028 Senior Notes |  |  |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |  |
Fair value of debt instrument | 395,900,000 |  | 395,900,000 |
Medical Aesthetics |  |  |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |  |
Intangible asset and equipment impairment charges | 443,800,000 |  |  |
Goodwill impairment charge |  | 685,700,000 |  |
Carrying value of indefinite-lived intangibles | 0 |  | $ 0 |
In Process Research and Development [Member] | Medical Aesthetics |  |  |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |  |
Intangible asset and equipment impairment charges |  | $ 46,000,000 |  |
Acquired intangible assets [Member] |  |  |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |  |
Intangible asset and equipment impairment charges | 437,000,000 |  |  |
Property, Plant and Equipment [Member] |  |  |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |  |
Intangible asset and equipment impairment charges | 6,800,000 |  |  |
Property, Plant and Equipment [Member] | Medical Aesthetics |  |  |  |
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] |  |  |  |
Intangible asset and equipment impairment charges | $ 6,800,000 |  |  |

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