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Other Income (Expense), net (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Significant components of Other (expense) income, net |  |  |
Other income (expense), net | $ 1.2 | $ (3.6) | $ 10.8
Investment income from life insurance policies |  |  |
Significant components of Other (expense) income, net |  |  |
Other income (expense), net | 60.8 | 55.3 | 51.3
Interest expense on life insurance policy loans |  |  |
Significant components of Other (expense) income, net |  |  |
Other income (expense), net | (62.1) | (57.4) | (52.5)
Gain on acquisition achieved in stages |  |  |
Significant components of Other (expense) income, net |  |  |
Other income (expense), net |  |  | 11.4
Life insurance policy cost of insurance |  |  |
Significant components of Other (expense) income, net |  |  |
Other income (expense), net | (10.9) | (10.1) | (9.2)
Income from life insurance policy redemptions |  |  |
Significant components of Other (expense) income, net |  |  |
Other income (expense), net | 4.4 | 4.2 |
Foreign currency transaction gains |  |  |
Significant components of Other (expense) income, net |  |  |
Other income (expense), net | 1.8 |  | 3.1
Rental income |  |  |
Significant components of Other (expense) income, net |  |  |
Other income (expense), net | 2.3 | 1.9 | 1.9
Interest income |  |  |
Significant components of Other (expense) income, net |  |  |
Other income (expense), net | 1.0 | 1.0 | 1.4
Equity in earnings of unconsolidated entities |  |  |
Significant components of Other (expense) income, net |  |  |
Other income (expense), net | 0.7 |  | 2.2
All other, net |  |  |
Significant components of Other (expense) income, net |  |  |
Other income (expense), net | $ 3.2 | $ 1.5 | $ 1.2

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- Definition Amount of income (expense) related to nonoperating activities, classified as other. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.9) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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