XML 42 R27.htm IDEA: XBRL DOCUMENT
v3.25.1

Pension Plans and Other Postretirement Benefit Plans (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2025
Retirement Benefits, Description [Abstract] |
Components of Net Periodic Benefit Cost | The Company uses a December 31 measurement date for its defined benefit pension and other postretirement benefit plans. The following table sets forth the components of net periodic benefit costs for the three months ended March 31 (dollars in millions):
|  | Pension Benefits |  |  | Other Postretirement Benefits |
|  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Service cost |  | $ | 4 |  |  | $ | 4 |  |  | $ | — |  |  | $ | — |
Interest cost |  |  | 9 |  |  |  | 8 |  |  |  | 2 |  |  |  | 2 |
Expected return on plan assets |  |  | (11 | ) |  |  | (11 | ) |  |  | (1 | ) |  |  | (1 | )
Net loss recognition |  |  | 1 |  |  |  | 1 |  |  |  | — |  |  |  | — |
Net periodic benefit cost |  | $ | 3 |  |  | $ | 2 |  |  | $ | 1 |  |  | $ | 1 |

X
- References No definition available. + Details
Name: | us-gaap_GeneralDiscussionOfPensionAndOtherPostretirementBenefitsAbstract
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