Accumulated Other Comprehensive Loss The following tables display the components of Accumulated Other Comprehensive Loss for the three and six months ended June 30, 2015 and 2014: | | | | | | | | | | | | | Three Months Ended June 30, 2015 (in millions) | Gains and Losses on Cash Flow Hedges | | Pension and OPEB Items | | Accumulated Other Comprehensive Loss | Balance as of April 1, 2015 | $ | (4.1 | ) | | $ | (0.1 | ) | | $ | (4.2 | ) | Other comprehensive income before reclassifications | — |
| | — |
| | — |
| Amounts reclassified from accumulated other comprehensive income(2) | 0.5 |
| | — |
| | 0.5 |
| Net current-period other comprehensive (loss) income | 0.5 |
| | — |
| | 0.5 |
| Allocation of accumulated other comprehensive loss to noncontrolling interest | 0.4 |
| | — |
| | 0.4 |
| Balance as of June 30, 2015 | $ | (4.0 | ) | | $ | (0.1 | ) | | $ | (4.1 | ) | | | | | | | Six Months Ended June 30, 2015 (in millions) | Gains and Losses on Cash Flow Hedges(1) | | Pension and OPEB Items(1) | | Accumulated Other Comprehensive Loss(1) | Balance as of January 1, 2015 | $ | (16.6 | ) | | $ | (0.1 | ) | | $ | (16.7 | ) | Predecessor net tax liabilities not assumed by Columbia OpCo(3) | (10.2 | ) | | (0.1 | ) | | (10.3 | ) | Other comprehensive income before reclassifications | — |
| | — |
| | — |
| Amounts reclassified from accumulated other comprehensive income(2) | 0.6 |
| | — |
| | 0.6 |
| Net current-period other comprehensive (loss) income | 0.6 |
| | — |
| | 0.6 |
| Allocation of accumulated other comprehensive loss to noncontrolling interest | (22.2 | ) | | (0.1 | ) | | (22.3 | ) | Balance as of June 30, 2015 | $ | (4.0 | ) | | $ | (0.1 | ) | | $ | (4.1 | ) |
(1)All amounts prior to the IPO are net of tax. Amounts in parentheses indicate debits. (2) Includes amounts allocated to noncontrolling interest. (3) Reflects the non-cash elimination of all historical current and deferred income taxes other than Tennessee state income taxes that will continue to be borne by the Partnership post-IPO. | | | | | | | | | | | | | Three Months Ended June 30, 2014 (in millions) | Gains and Losses on Cash Flow Hedges(1) | | Pension and OPEB Items(1) | | Accumulated
Other
Comprehensive
Loss(1) | | Predecessor | Balance as of April 1, 2014 | $ | (17.3 | ) | | $ | (0.1 | ) | | $ | (17.4 | ) | Other comprehensive income before reclassifications | — |
| | — |
| | — |
| Amounts reclassified from accumulated other comprehensive income | 0.2 |
| | — |
| | 0.2 |
| Net current-period other comprehensive income | 0.2 |
| | — |
| | 0.2 |
| Balance as of June 30, 2014 | $ | (17.1 | ) | | $ | (0.1 | ) | | $ | (17.2 | ) | | | | | | | Six Months Ended June 30, 2014 (in millions) | Gains and Losses on Cash Flow Hedges(1) | | Pension and OPEB Items(1) | | Accumulated Other Comprehensive Loss(1) | | Predecessor | Balance as of January 1, 2014 | $ | (17.6 | ) | | $ | (0.1 | ) | | $ | (17.7 | ) | Other comprehensive income before reclassifications | — |
| | — |
| | — |
| Amounts reclassified from accumulated other comprehensive income | 0.5 |
| |
|
| | 0.5 |
| Net current-period other comprehensive income | 0.5 |
| | — |
| | 0.5 |
| Balance as of June 30, 2014 | $ | (17.1 | ) | | $ | (0.1 | ) | | $ | (17.2 | ) |
(1)All amounts are net of tax. Amounts in parentheses indicated debits.
Equity Investment Millennium Pipeline is an equity method investment and, therefore, Columbia OpCo is required to recognize a proportional share of Millennium Pipeline’s OCI. The remaining unrecognized loss at June 30, 2015 of $25.9 million, before tax, related to terminated interest rate swaps is being amortized over the period ending June 2025 into earnings using the effective interest method through interest expense as interest payments are made by Millennium Pipeline. The unrecognized loss of $25.9 million, before tax, and $16.6 million, after tax, at June 30, 2015 and December 31, 2014, respectively, is included in gains and losses on cash flow hedges above. |