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Segment Reporting - Reconciliation of Consolidated Segment Earnings to Consolidated Income Before Provision for Income Taxes (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Consolidated income before interest, other expense, provision for income taxes and equity in net income of affiliates | $ 1,070.2 | $ 1,654.1 | $ 1,608.3
Interest expense | 92.0 | 84.1 | 85.7
Other (income) expense, net | 24.6 | 31.6 | (4.1)
Consolidated income before provision for income taxes and equity in net income of affiliates | 953.6 | 1,538.4 | 1,526.7
Operating segments |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Consolidated income before interest, other expense, provision for income taxes and equity in net income of affiliates | 1,327.5 | 1,892.1 | 1,892.4
Other |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Consolidated income before interest, other expense, provision for income taxes and equity in net income of affiliates | $ (257.3) | $ (238.0) | $ (284.1)

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