XML 39 R27.htm IDEA: XBRL DOCUMENT
v3.24.1.u1

Pension and Other Postretirement Benefits (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2024
Retirement Benefits [Abstract] |
Schedule of Net Benefit Costs [Table Text Block] | The components of net periodic pension and retiree medical income were as follows (in millions):
| Three Months Ended March 31, |  |
| 2024 |  | 2023 |  |  |  |
Interest cost | $ | 7.4 |  |  | $ | 7.7 |  |  |  |  |
Expected return on plan assets | (7.9) |  |  | (7.7) |  |  |  |  |
Amortization of net gain | (0.2) |  |  | (0.1) |  |  |  |  |
Net periodic pension and retiree medical income (1) | $ | (0.7) |  |  | $ | (0.1) |  |  |  |  |
(1)Included in Other, net, in our Condensed Consolidated Statements of Operations.

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

X
- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 715 -SubTopic 20 -Subparagraph (h) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
Name: | us-gaap_ScheduleOfNetBenefitCostsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration