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Subsequent Events - Additional Information (Detail) - USD ($) $ in Millions |  |  | 1 Months Ended
--- | --- | --- | ---
Oct. 22, 2020 | Oct. 01, 2019 | Oct. 31, 2020
Subsequent Event [Line Items] |  |  |
Cash paid at closing |  | $ 2,703 |
Subsequent Event [Member] | 2020 Term Loan [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Percentage of initial aggregate principal amount | 1.00% |  |
Maturity date | Oct. 01, 2026 |  |
Subsequent Event [Member] | 2020 Term Loan [Member] | Base Rate [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Debt, variable interest rate | 1.75% |  |
Subsequent Event [Member] | 2020 Term Loan [Member] | Eurodollar [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Debt, variable interest rate | 2.75% |  |
Subsequent Event [Member] | SKG and Life Safety [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Date of acquisition |  |  | Oct. 31, 2020
Cash paid at closing |  |  | $ 302
Subsequent Event [Member] | SKG and Life Safety [Member] | 2020 Term Loan [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Incremental term loan | $ 250 |  |

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