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Accumulated Other Comprehensive (Loss) Income | 6 Months Ended
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Jun. 30, 2022
Equity [Abstract] |
Accumulated Other Comprehensive (Loss) Income | 7. Accumulated Other Comprehensive (Loss) Income The following table presents the changes in the accumulated balances for each component of AOCI (in millions of dollars):
|  | Quarter Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2022 |  |  | 2021 |  |  | 2022 |  |  | 2021 |
Defined Benefit Pension Plan and Salaried VEBA: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | (20.5 | ) |  | $ | (19.1 | ) |  | $ | (21.4 | ) |  | $ | (19.8 | )
Amortization of net actuarial loss1 |  |  | — |  |  |  | 0.1 |  |  |  | — |  |  |  | 0.2 |
Amortization of prior service cost1 |  |  | 1.3 |  |  |  | 0.8 |  |  |  | 2.5 |  |  |  | 1.7 |
Less: income tax expense2 |  |  | (0.4 | ) |  |  | (0.2 | ) |  |  | (0.7 | ) |  |  | (0.5 | )
Other comprehensive income, net of tax |  |  | 0.9 |  |  |  | 0.7 |  |  |  | 1.8 |  |  |  | 1.4 |
Ending balance |  | $ | (19.6 | ) |  | $ | (18.4 | ) |  | $ | (19.6 | ) |  | $ | (18.4 | )
Cash Flow Hedges: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | 34.8 |  |  | $ | 9.6 |  |  | $ | 17.7 |  |  | $ | 1.1 |
Unrealized (loss) gain on cash flow hedges |  |  | (50.7 | ) |  |  | 28.4 |  |  |  | (8.4 | ) |  |  | 42.3 |
Less: income tax benefit (expense) |  |  | 12.0 |  |  |  | (6.7 | ) |  |  | 2.0 |  |  |  | (10.0 | )
Net unrealized (loss) gain on cash flow hedges |  |  | (38.7 | ) |  |  | 21.7 |  |  |  | (6.4 | ) |  |  | 32.3 |
Reclassification of unrealized loss (gain) upon settlement of cash flow hedges |  |  | 2.9 |  |  |  | (8.7 | ) |  |  | (17.0 | ) |  |  | (11.4 | )
Less: income tax (expense) benefit2 |  |  | (0.7 | ) |  |  | 2.2 |  |  |  | 4.0 |  |  |  | 2.8 |
Net loss (gain) reclassified from AOCI to Net loss |  |  | 2.2 |  |  |  | (6.5 | ) |  |  | (13.0 | ) |  |  | (8.6 | )
Other comprehensive (loss) income, net of tax |  |  | (36.5 | ) |  |  | 15.2 |  |  |  | (19.4 | ) |  |  | 23.7 |
Ending balance3 |  | $ | (1.7 | ) |  | $ | 24.8 |  |  | $ | (1.7 | ) |  | $ | 24.8 |
Foreign Currency Translation: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  | $ | — |  |  | $ | (0.1 | ) |  | $ | — |  |  | $ | — |
Other comprehensive income (loss), net of tax |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (0.1 | )
Ending balance |  | $ | — |  |  | $ | (0.1 | ) |  | $ | — |  |  | $ | (0.1 | )
Total AOCI ending balance |  | $ | (21.3 | ) |  | $ | 6.3 |  |  | $ | (21.3 | ) |  | $ | 6.3 |
1 Amounts amortized out of AOCI relating to Salaried VEBA adjustments were included within Other expense, net, as a component of Net periodic postretirement benefit cost relating to Salaried VEBA. 2 Income tax amounts reclassified out of AOCI were included as a component of Income tax benefit. 3 As of June 30, 2022, we estimate a net mark-to-market loss before tax of $6.0 million in AOCI will be reclassified into Net loss upon settlement within the next 12 months.

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- Definition The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -URI http://asc.fasb.org/topic&trid=2134417 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(21)) -URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(23)) -URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 + Details
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