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Defined Benefit Pension Plans and Other Post-Employment Benefit Plans - Net Period Benefit Costs Charged to Discontinued Operations (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total expense (income) included in discontinued operations | $ 0.5 | $ 2.8 | $ 0.2 | $ 6.9
Discontinued Operations |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total expense (income) included in discontinued operations | 0.0 | 1.3 | (0.4) | 3.7
Defined benefit pension plans | Discontinued Operations |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total expense (income) included in discontinued operations | (0.1) | 1.2 | (0.5) | 3.6
Other employee benefit plans |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total expense (income) included in discontinued operations | (13.4) | 0.1 | (13.3) | 0.4
Other employee benefit plans | Discontinued Operations |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Total expense (income) included in discontinued operations | $ 0.1 | $ 0.1 | $ 0.1 | $ 0.1

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- Definition The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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