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Pension Benefits and Postretirement Benefits Other Than Pensions | 9 Months Ended
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Sep. 30, 2015
Compensation and Retirement Disclosure [Abstract] |
Pension Benefits and Postretirement Benefits Other Than Pensions | Note 11 - Pension Benefits and Postretirement Benefits Other Than Pensions The components of Pension Expense for the nine and three months ended September 30, 2015 and 2014 were:
|  | Nine Months Ended |  | Three Months Ended
(Dollars in Millions) |  | Sep 30, 2015 |  | Sep 30, 2014 |  | Sep 30, 2015 |  | Sep 30, 2014
Service Cost Earned |  | $ | 7.9 |  |  | $ | 6.5 |  |  | $ | 2.7 |  |  | $ | 2.1 |
Interest Cost on Projected Benefit Obligation |  | 19.3 |  |  | 18.6 |  |  | 6.5 |  |  | 6.2 |
Expected Return on Plan Assets |  | (26.3 | ) |  | (26.2 | ) |  | (8.8 | ) |  | (8.7 | )
Amortization of Accumulated Net Unrecognized Pension Costs |  | 18.3 |  |  | 7.3 |  |  | 6.1 |  |  | 2.5 |
Total Pension Expense Recognized |  | $ | 19.2 |  |  | $ | 6.2 |  |  | $ | 6.5 |  |  | $ | 2.1 |
The components of Postretirement Benefits Other than Pensions Expense (Benefit) for the nine and three months ended September 30, 2015 and 2014 were:
|  | Nine Months Ended |  | Three Months Ended
(Dollars in Millions) |  | Sep 30, 2015 |  | Sep 30, 2014 |  | Sep 30, 2015 |  | Sep 30, 2014
Service Cost on Benefits Earned |  | $ | 0.1 |  |  | $ | 0.1 |  |  | $ | — |  |  | $ | — |
Interest Cost on Projected Benefit Obligation |  | 0.8 |  |  | 0.9 |  |  | 0.3 |  |  | 0.3 |
Amortization of Accumulated Net Unrecognized Gain |  | (1.1 | ) |  | (1.4 | ) |  | (0.4 | ) |  | (0.5 | )
Total Postretirement Benefits Other than Pensions Expense (Benefit) |  | $ | (0.2 | ) |  | $ | (0.4 | ) |  | $ | (0.1 | ) |  | $ | (0.2 | )

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- Definition The entire disclosure for pension and other postretirement benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 80 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=49170332&loc=SL14450702-114947 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e2410-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 60 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6414203&loc=d3e39675-114964 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 60 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6414199&loc=d3e39622-114963 + Details
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