XML 52 R38.htm IDEA: XBRL DOCUMENT
v3.10.0.1

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2018
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS). |
Schedule of changes in accumulated other comprehensive income (loss) by component, net of tax |
|  |  |  |  |  |  | Non- |  |  |  |  | Accumulated |
|  |  |  |  | Post- |  | Qualified |  |  |  |  | Other |
|  | Pension |  | Retirement |  | Pension |  |  |  |  | Comprehensive |
(In millions) |  | Benefits |  | Benefits |  | Benefits |  | Other |  | Income (Loss) |
Balance at December 31, 2016 |  | $ | (41.4) |  | $ | 18.1 |  | $ | (0.4) |  | $ | 0.1 |  | $ | (23.6) |
Net gain in prior service costs |  |  | — |  |  | 0.7 |  |  | — |  |  | 0.1 |  |  | 0.8 |
Amortization of prior service cost |  |  | (1.4) |  |  | (2.5) |  |  | (0.1) |  |  | — |  |  | (4.0) |
Amortization of net loss (gain) |  |  | 2.2 |  |  | (0.7) |  |  | 0.2 |  |  | — |  |  | 1.7 |
Other adjustments |  |  | — |  |  | — |  |  | — |  |  | 0.2 |  |  | 0.2 |
Balance at December 31, 2017 |  |  | (40.6) |  |  | 15.6 |  |  | (0.3) |  |  | 0.4 |  |  | (24.9) |
Reclassification adjustment related to the Tax Act (1) |  |  | (9.2) |  |  | 3.4 |  |  | (0.2) |  |  | — |  |  | (6.0) |
Amortization of prior service cost |  |  | (1.7) |  |  | (2.9) |  |  | (0.1) |  |  | — |  |  | (4.7) |
Amortization of net loss (gain) |  |  | (4.3) |  |  | 5.6 |  |  | 0.5 |  |  | (0.7) |  |  | 1.1 |
Balance at December 31, 2018 |  | $ | (55.8) |  | $ | 21.7 |  | $ | (0.1) |  | $ | (0.3) |  | $ | (34.5) |
| (1) |  | Reclassification from accumulated other comprehensive income (loss) to retained earnings for the remeasurement tax effects resulting from applying the Tax Act in accordance with ASU 2018-02.

X
- References No definition available. + Details
Name: | us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTaxAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669686-108580 + Details
Name: | us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration