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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, 2015 | Dec. 31, 2014 | Dec. 31, 2013
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 | $ 1,186.8 | $ 929.2 | $ 736.6
Interest expense | 86.7 | 67.5 | 68.4
Other expense, net | 68.6 | 74.3 | 58.1
Consolidated income before provision for income taxes and equity in net income of affiliates | 1,031.5 | 787.4 | 610.1
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 | 1,461.4 | 1,211.8 | 991.2
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 | $ (274.6) | $ (282.6) | $ (254.6)

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