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Segment Reporting - Reconciliation of Consolidated Segment Earnings to Consolidated Income Before Provision for Income Taxes (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
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 | $ 454.1 | $ 1,070.2 | $ 1,654.1
Interest expense | 99.6 | 92.0 | 84.1
Other expense, net | 55.2 | 24.6 | 31.6
Consolidated income before provision for income taxes and equity in net income of affiliates | 299.3 | 953.6 | 1,538.4
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 | 688.6 | 1,327.5 | 1,892.1
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 | $ (234.5) | $ (257.3) | $ (238.0)

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