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Reclassifications Out of Accumulated Other Comprehensive Income (Loss) | 12 Months Ended
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Dec. 31, 2015
Reclassifications Out of Accumulated Other Comprehensive Income (Loss) [Abstract] |
Reclassifications Out of Accumulated Other Comprehensive Income (Loss) [Text Block] | RECLASSIFICATIONS OUT OF ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) Changes in Accumulated Other Comprehensive Loss. Comprehensive income (loss) is the change in common shareholders’ equity during a period from transactions and events from non-owner sources, including net income. The amounts recorded to accumulated other comprehensive loss include unrealized gains and losses on available-for-sale securities, defined benefit pension and other postretirement items, consisting of deferred actuarial gains or losses and prior service costs or credits, and gains and losses on derivatives accounted for as cash flow hedges. NOTE 16. RECLASSIFICATIONS OUT OF ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)(Continued) Changes in accumulated other comprehensive loss, net of tax, for the years ended December 31, 2015, 2014 and 2013, were as follows:
| Unrealized Gain (Loss) on Available-for-sale Securities | Defined Benefit Pension, Other Postretirement Items (a) | Gain (Loss) on Cash Flow Hedge | Total
Millions |  |  |  |
Balance as of December 31, 2012 | $(0.1) | $(21.5) | $(0.4) | $(22.0)
Other Comprehensive Income Before Reclassifications | 1.3 |  | 3.2 |  | 0.1 |  | 4.6 |
Amounts Reclassified From Accumulated Other Comprehensive Loss | (1.3 | ) | 1.6 |  | — |  | 0.3 |
Net Other Comprehensive Income | — |  | 4.8 |  | 0.1 |  | 4.9 |
Balance as of December 31, 2013 | (0.1 | ) | (16.7 | ) | (0.3 | ) | (17.1 | )
Other Comprehensive Income (Loss) Before Reclassifications | (0.3 | ) | (5.2 | ) | 0.2 |  | (5.3 | )
Amounts Reclassified From Accumulated Other Comprehensive Loss | 0.1 |  | 1.2 |  | — |  | 1.3 |
Net Other Comprehensive Income (Loss) | (0.2 | ) | (4.0 | ) | 0.2 |  | (4.0 | )
Balance as of December 31, 2014 | (0.3 | ) | (20.7 | ) | (0.1 | ) | (21.1 | )
Other Comprehensive Income (Loss) Before Reclassifications | (0.4 | ) | (4.3 | ) | 0.1 |  | (4.6 | )
Amounts Reclassified From Accumulated Other Comprehensive Loss | (0.1 | ) | 1.3 |  | — |  | 1.2 |
Net Other Comprehensive Income (Loss) | (0.5 | ) | (3.0 | ) | 0.1 |  | (3.4 | )
Balance as of December 31, 2015 | $(0.8) | $(23.7) | — |  | $(24.5)
(a) | Defined benefit pension and other postretirement items excluded from our Regulated Operations are recognized in accumulated other comprehensive loss and are subsequently reclassified out of accumulated other comprehensive loss as components of net periodic pension and other postretirement benefit expense. (See Note 17. Pension and Other Postretirement Benefit Plans.)

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- Definition Reclassifications Out of Accumulated Other Comprehensive Income (Loss) [Abstract] + References No definition available. + Details
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- Definition The entire disclosure for any adjustments made during the period to avoid double counting in comprehensive income items displayed as part of net income that also had been displayed as part of other comprehensive income in that period or earlier periods. These adjustments include reclassifications to net income of items in accumulated comprehensive income, such as deferred gains or losses on qualifying hedges when hedged item reported in net income, holding gains or losses on available-for-sale securities transferred into trading category, unrealized holding gains or losses on debt securities transferred from held-to-maturity category into available-for-sale category and accumulated translation adjustment attributable to foreign subsidiary or investment in foreign entity upon sale or liquidation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e689-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Reclassification Adjustments -URI http://asc.fasb.org/extlink&oid=6522872 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e716-108580 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 31 -Article 5 + Details
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