XML 51 R38.htm IDEA: XBRL DOCUMENT
v3.22.4

Stockholders' Equity (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2022
Equity [Abstract] |
Schedule of Changes in Accumulated Other Comprehensive Loss | Accumulated other comprehensive loss – Changes in accumulated other comprehensive loss for 2020, 2021 and 2022 are presented in the table below.
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Years ended December 31,
​ |  | 2020 |  | 2021 |  | 2022
​ | ​ | (In millions)
Accumulated other comprehensive loss, net of tax: |  | ​ |  |  | ​ |  |  | ​ |
Currency translation: |  | ​ |  |  | ​ |  |  | ​ |
Balance at beginning of period | ​ | $ | (246.8) | ​ | $ | (233.4) | ​ | $ | (240.4)
Other comprehensive income (loss) | ​ |  | 13.4 | ​ |  | (7.0) | ​ |  | (28.8)
Balance at end of period | ​ | $ | (233.4) | ​ | $ | (240.4) | ​ | $ | (269.2)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Defined benefit pension plans: | ​ |  |  | ​ |  |  | ​ |  |
Balance at beginning of period | ​ | $ | (202.2) | ​ | $ | (214.5) | ​ | $ | (163.3)
Other comprehensive income - amortization of prior service cost and net losses included in net periodic pension cost | ​ |  | 13.4 | ​ |  | 14.9 | ​ |  | 9.9
Net actuarial gain (loss) arising during year | ​ | ​ | (25.7) | ​ | ​ | 36.3 | ​ | ​ | 90.3
Balance at end of period | ​ | $ | (214.5) | ​ | $ | (163.3) | ​ | $ | (63.1)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
OPEB plans: | ​ |  |  | ​ |  |  | ​ |  |
Balance at beginning of period | ​ | $ | .2 | ​ | $ | (.3) | ​ | $ | (.4)
Other comprehensive loss - amortization of prior service credit and net losses included in net periodic OPEB cost | ​ |  | (.2) | ​ |  | (.3) | ​ |  | (.3)
Net actuarial gain (loss) arising during year | ​ | ​ | (.3) | ​ | ​ | .2 | ​ | ​ | 1.5
Balance at end of period | ​ | $ | (.3) | ​ | $ | (.4) | ​ | $ | .8
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total accumulated other comprehensive loss: | ​ |  |  | ​ |  |  | ​ |  |
Balance at beginning of period | ​ | $ | (448.8) | ​ | $ | (448.2) | ​ | $ | (404.1)
Other comprehensive income | ​ |  | .6 | ​ |  | 44.1 | ​ |  | 72.6
Balance at end of period | ​ | $ | (448.2) | ​ | $ | (404.1) | ​ | $ | (331.5)
​

X
- References No definition available. + Details
Name: | us-gaap_EquityAbstract
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/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI https://asc.fasb.org/extlink&oid=126968391&loc=SL7669686-108580 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 20 -URI https://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900 + Details
Name: | us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration