XML 38 R27.htm IDEA: XBRL DOCUMENT
v3.23.2

EMPLOYEE BENEFITS | 6 Months Ended
--- | ---
Jun. 30, 2023
Retirement Benefits [Abstract] |
EMPLOYEE BENEFITS | EMPLOYEE BENEFITS The following tables show the components of net periodic benefit cost (credit) (including amounts capitalized to our balance sheets) for our benefit plans.
|  | Pension Benefits
|  | Three Months Ended June 30 |  | Six Months Ended June 30
(in millions) |  | 2023 |  | 2022 |  | 2023 |  | 2022
Service cost |  | $ | 5.4 |  |  | $ | 14.2 |  |  | $ | 12.0 |  |  | $ | 26.6 |
Interest cost |  | 30.4 |  |  | 22.4 |  |  | 61.2 |  |  | 45.2 |
Expected return on plan assets |  | (46.4) |  |  | (52.5) |  |  | (93.8) |  |  | (105.2) |
Loss on plan settlement |  | — |  |  | 2.2 |  |  | — |  |  | 2.2 |
Amortization of prior service cost |  | — |  |  | 0.4 |  |  | 0.1 |  |  | 0.8 |
Amortization of net actuarial loss |  | 9.3 |  |  | 19.1 |  |  | 16.7 |  |  | 38.2 |
Net periodic benefit cost (credit) |  | $ | (1.3) |  |  | $ | 5.8 |  |  | $ | (3.8) |  |  | $ | 7.8 |
|  | OPEB Benefits
|  | Three Months Ended June 30 |  | Six Months Ended June 30
(in millions) |  | 2023 |  | 2022 |  | 2023 |  | 2022
Service cost |  | $ | 2.4 |  |  | $ | 3.3 |  |  | $ | 4.9 |  |  | $ | 7.1 |
Interest cost |  | 5.4 |  |  | 3.8 |  |  | 10.8 |  |  | 7.7 |
Expected return on plan assets |  | (13.2) |  |  | (17.3) |  |  | (26.5) |  |  | (34.5) |
Amortization of prior service credit |  | (3.7) |  |  | (3.9) |  |  | (7.4) |  |  | (7.9) |
Amortization of net actuarial gain |  | (3.0) |  |  | (6.3) |  |  | (6.2) |  |  | (12.3) |
Net periodic benefit credit |  | $ | (12.1) |  |  | $ | (20.4) |  |  | $ | (24.4) |  |  | $ | (39.9) |
During the six months ended June 30, 2023, we made contributions and payments of $8.1 million related to our pension plans and $1.1 million related to our OPEB plans. We expect to make contributions and payments of $6.5 million related to our pension plans and $0.9 million related to our OPEB plans during the remainder of 2023, dependent upon various factors affecting us, including our liquidity position and possible tax law changes. Effective January 1, 2023, the PSCW approved escrow accounting for pension and OPEB costs. As a result, as of June 30, 2023, we recorded a $5.3 million regulatory asset for pension costs and a $7.4 million regulatory asset for OPEB costs. The above tables do not reflect any adjustments for the creation of these regulatory assets.

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 The entire disclosure for retirement benefits. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 70 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480794/715-70-50-1 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480482/715-20-55-17 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(03) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(i) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (q) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (l) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//715/tableOfContent Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(iii) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (o) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (p) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (r)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (r)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480126/715-20-S99-2 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 60 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480266/715-60-50-3 + Details
Name: | us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration