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12. Commitments & Contingent Liabilities Pensions (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate | 0.90% | 1.10% | 1.30%
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate | 0.80% | 0.90% |
Defined Benefit Plan, Benefit Obligation | $ 136.6 | $ 122.7 | $ 120.8
Defined Benefit Plan, Service Cost | 6.5 | 6.1 | 5.3
Defined Benefit Plan, Interest Cost | 1.1 | 1.4 | 1.4
Defined Benefit Plan, Benefit Obligation, Contributions by Plan Participant | 2.8 | 2.6 |
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss) | 3.3 | 0.0 |
Defined Benefit Plan, Benefit Obligation, Benefits Paid | (3.2) | (3.3) |
Defined Benefit Plan, Benefit Obligation, Increase (Decrease) for Plan Amendment | 1.1 | 0.0 |
Defined Benefit Plan, Benefit Obligation, Special and Contractual Termination Benefits | (2.0) | 0.0 |
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Settlement | (5.1) | (2.5) |
Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss) | 9.4 | (2.4) |
Defined Benefit Plan, Fair Value of Plan Assets | 61.7 | 58.8 | 56.7
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss) | 0.5 | 1.3 |
Defined Benefit Plan, Plan Assets, Contributions by Employer | 4.0 | 4.7 |
Defined Benefit Plan, Plan Assets, Contributions by Plan Participant | 2.8 | 2.6 |
Defined Benefit Plan, Plan Assets, Benefits Paid | (2.3) | (2.9) |
Defined Benefit Plan, Plan Assets, Payment for Settlement | (5.1) | (2.5) |
Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss) | 3.0 | (1.1) |
Defined Benefit Plan, Funded (Unfunded) Status of Plan | (74.9) | (63.9) |
Liability, Defined Benefit Plan, Current | (1.1) | (0.5) |
Liability, Defined Benefit Plan, Noncurrent | (73.8) | (63.4) |
Liability, Defined Benefit Plan | (74.9) | (63.9) |
Defined Benefit Plan, Expected Return (Loss) on Plan Assets | (1.1) | (1.0) | (1.2)
Defined Benefit Plan, Amortization of Gain (Loss) | 1.4 | 1.7 | 0.8
Defined Benefit Plan, Amortization of Prior Service Cost (Credit) | 0.0 | 0.0 | 0.4
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement | 1.2 | 0.4 | 0.0
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) | $ 9.1 | $ 8.6 | $ 6.7
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase | 1.80% | 1.60% |
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets | 1.90% | 1.60% | 2.30%

X
- Definition Amount of increase (decrease) in plan assets of defined benefit plan from actual return (loss) determined by change in fair value of plan assets adjusted for contributions, benefit payments, and other expenses. + 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 (b)(1) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Amount of gain (loss) from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan. + 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 (a)(4) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan. + 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)(4) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Amount of prior service cost (credit) recognized in net periodic benefit cost (credit) of defined benefit plan. + 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)(5) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan. + 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 (k)(1) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Weighted average rate increase of compensation, used to determine benefit obligation of defined benefit plan. Plan includes, but is not limited to, pay-related defined benefit plan. + 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 (k)(2) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine net periodic benefit cost of defined benefit plan. + 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 (k)(1) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan. + 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 (k)(3) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Amount of payment to participant of defined benefit plan which decreases benefit obligation. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 60 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6414203&loc=d3e39716-114964 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(6) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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- Definition Amount of foreign currency translation gain (loss) which (increases) decreases benefit obligation of defined benefit plan. + 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 (a)(5) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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