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Other (Expense) Income, net (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended
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Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
Significant components of Other (expense) income, net |  |  |
Other (expense) income, net | $ (1.4) | $ (3.0) | $ 12.6
Investment income from life insurance policies |  |  |
Significant components of Other (expense) income, net |  |  |
Other (expense) income, net | 39.1 | 27.4 | 34.7
Interest expense on life insurance policy loans |  |  |
Significant components of Other (expense) income, net |  |  |
Other (expense) income, net | (40.5) | (32.3) | (31.7)
Life insurance policy cost of insurance |  |  |
Significant components of Other (expense) income, net |  |  |
Other (expense) income, net | (7.2) | (6.6) | (4.7)
Income from life insurance policy redemptions |  |  |
Significant components of Other (expense) income, net |  |  |
Other (expense) income, net | 2.8 | 2.6 | 5.2
Foreign currency transaction (losses) gains |  |  |
Significant components of Other (expense) income, net |  |  |
Other (expense) income, net | (5.9) | 0.2 | 0.2
Rental income |  |  |
Significant components of Other (expense) income, net |  |  |
Other (expense) income, net | 2.4 | 2.7 | 3.1
Interest income |  |  |
Significant components of Other (expense) income, net |  |  |
Other (expense) income, net | 1.1 | 1.2 | 1.4
Equity in earnings of unconsolidated entities |  |  |
Significant components of Other (expense) income, net |  |  |
Other (expense) income, net | 2.2 | 0.7 | 1.4
Gain (loss) on sales of property, plant and equipment |  |  |
Significant components of Other (expense) income, net |  |  |
Other (expense) income, net | 2.6 | (1.1) | (0.1)
All other, net |  |  |
Significant components of Other (expense) income, net |  |  |
Other (expense) income, net | $ 2.0 | $ 2.2 | $ 3.1

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- Definition The net amount of other income and expense amounts, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating income (expense) recognized for the period. Such amounts may include: (a) dividends, (b) interest on securities, (c) net gains or losses on securities, (d) unusual costs, (e) gains or losses on foreign exchange transactions, and (f) miscellaneous other income and expense items. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 5 -Section 03 -Paragraph 9 Reference 2: 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=6880815&loc=d3e20235-122688 + Details
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