XML 54 R34.htm IDEA: XBRL DOCUMENT
v3.21.2

PENSION BENEFITS AND POSTRETIREMENT BENEFITS OTHER THAN PENSION (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2021
Postemployment Benefits [Abstract] |
Components of Net Periodic Benefit Expense/(Income) | The components of net periodic benefit plan expense/(income) for the Pension, SERP and PBOP Plans, prior to amounts capitalized as Property, Plant and Equipment or deferred as regulatory assets for future recovery, are shown below. The service cost component of net periodic benefit plan expense/(income), less the capitalized portion, is included in Operations and Maintenance expense on the statements of income. The remaining components of net periodic benefit plan expense/(income), less the deferred portion, are included in Other Income, Net on the statements of income. Pension, SERP and PBOP expense reflected in the statements of cash flows for CL&P, NSTAR Electric and PSNH does not include intercompany allocations of net periodic benefit plan expense/(income), as these amounts are cash settled on a short-term basis.
| Pension and SERP |  | PBOP
| For the Three Months Ended September 30, 2021 |  | For the Three Months Ended September 30, 2021
(Millions of Dollars) | Eversource |  | CL&P |  | NSTAR Electric |  | PSNH |  | Eversource |  | CL&P |  | NSTAR Electric |  | PSNH
Service Cost | $ | 21.5 |  |  | $ | 5.6 |  |  | $ | 4.0 |  |  | $ | 2.2 |  |  | $ | 3.3 |  |  | $ | 0.5 |  |  | $ | 0.6 |  |  | $ | 0.3 |
Interest Cost | 32.5 |  |  | 6.7 |  |  | 6.7 |  |  | 3.7 |  |  | 4.3 |  |  | 0.8 |  |  | 1.1 |  |  | 0.4 |
Expected Return on Plan Assets | (109.5) |  |  | (21.7) |  |  | (27.1) |  |  | (11.9) |  |  | (19.8) |  |  | (2.5) |  |  | (9.2) |  |  | (1.6) |
Actuarial Loss | 60.7 |  |  | 10.8 |  |  | 15.3 |  |  | 5.3 |  |  | 2.0 |  |  | 0.4 |  |  | 0.5 |  |  | 0.1 |
Prior Service Cost/(Credit) | 0.3 |  |  | — |  |  | 0.1 |  |  | — |  |  | (5.3) |  |  | 0.3 |  |  | (4.3) |  |  | 0.1 |
Total Net Periodic Benefit Plan Expense/(Income) | $ | 5.5 |  |  | $ | 1.4 |  |  | $ | (1.0) |  |  | $ | (0.7) |  |  | $ | (15.5) |  |  | $ | (0.5) |  |  | $ | (11.3) |  |  | $ | (0.7) |
Intercompany Expense/(Income) Allocations | N/A |  | $ | 2.2 |  |  | $ | 2.4 |  |  | $ | 0.7 |  |  | N/A |  | $ | (0.4) |  |  | $ | (0.5) |  |  | $ | (0.2) |
| Pension and SERP |  | PBOP
| For the Nine Months Ended September 30, 2021 |  | For the Nine Months Ended September 30, 2021
(Millions of Dollars) | Eversource |  | CL&P |  | NSTAR Electric |  | PSNH |  | Eversource |  | CL&P |  | NSTAR Electric |  | PSNH
Service Cost | $ | 64.3 |  |  | $ | 17.4 |  |  | $ | 11.9 |  |  | $ | 6.6 |  |  | $ | 10.1 |  |  | $ | 1.7 |  |  | $ | 1.8 |  |  | $ | 0.9 |
Interest Cost | 97.5 |  |  | 20.7 |  |  | 20.1 |  |  | 10.9 |  |  | 12.9 |  |  | 2.4 |  |  | 3.3 |  |  | 1.3 |
Expected Return on Plan Assets | (328.0) |  |  | (65.0) |  |  | (81.1) |  |  | (35.6) |  |  | (59.3) |  |  | (7.7) |  |  | (27.7) |  |  | (4.6) |
Actuarial Loss | 183.1 |  |  | 34.6 |  |  | 46.1 |  |  | 15.4 |  |  | 5.9 |  |  | 1.2 |  |  | 1.6 |  |  | 0.4 |
Prior Service Cost/(Credit) | 1.1 |  |  | — |  |  | 0.3 |  |  | — |  |  | (15.9) |  |  | 0.8 |  |  | (12.7) |  |  | 0.3 |
Total Net Periodic Benefit Plan Expense/(Income) | $ | 18.0 |  |  | $ | 7.7 |  |  | $ | (2.7) |  |  | $ | (2.7) |  |  | $ | (46.3) |  |  | $ | (1.6) |  |  | $ | (33.7) |  |  | $ | (1.7) |
Intercompany Expense/(Income) Allocations | N/A |  | $ | 5.8 |  |  | $ | 6.4 |  |  | $ | 1.9 |  |  | N/A |  | $ | (1.3) |  |  | $ | (1.5) |  |  | $ | (0.5) |
| Pension and SERP |  | PBOP
| For the Three Months Ended September 30, 2020 |  | For the Three Months Ended September 30, 2020
(Millions of Dollars) | Eversource |  | CL&P |  | NSTAR Electric |  | PSNH |  | Eversource |  | CL&P |  | NSTAR Electric |  | PSNH
Service Cost | $ | 18.7 |  |  | $ | 5.4 |  |  | $ | 3.8 |  |  | $ | 2.0 |  |  | $ | 2.4 |  |  | $ | 0.4 |  |  | $ | 0.5 |  |  | $ | 0.2 |
Interest Cost | 44.4 |  |  | 9.3 |  |  | 9.7 |  |  | 4.8 |  |  | 6.1 |  |  | 1.1 |  |  | 1.7 |  |  | 0.7 |
Expected Return on Plan Assets | (99.2) |  |  | (19.8) |  |  | (25.7) |  |  | (11.1) |  |  | (18.3) |  |  | (2.5) |  |  | (8.5) |  |  | (1.4) |
Actuarial Loss | 50.7 |  |  | 9.7 |  |  | 14.0 |  |  | 3.8 |  |  | 2.2 |  |  | 0.3 |  |  | 0.6 |  |  | 0.2 |
Prior Service Cost/(Credit) | 0.2 |  |  | — |  |  | — |  |  | — |  |  | (5.3) |  |  | 0.3 |  |  | (4.2) |  |  | 0.1 |
Total Net Periodic Benefit Plan Expense/(Income) | $ | 14.8 |  |  | $ | 4.6 |  |  | $ | 1.8 |  |  | $ | (0.5) |  |  | $ | (12.9) |  |  | $ | (0.4) |  |  | $ | (9.9) |  |  | $ | (0.2) |
Intercompany Expense/(Income) Allocations | N/A |  | $ | 2.4 |  |  | $ | 2.3 |  |  | $ | 0.8 |  |  | N/A |  | $ | (0.3) |  |  | $ | (0.4) |  |  | $ | (0.1) |
| Pension and SERP |  | PBOP
| For the Nine Months Ended September 30, 2020 |  | For the Nine Months Ended September 30, 2020
(Millions of Dollars) | Eversource |  | CL&P |  | NSTAR Electric |  | PSNH |  | Eversource |  | CL&P |  | NSTAR Electric |  | PSNH
Service Cost | $ | 57.0 |  |  | $ | 16.5 |  |  | $ | 11.4 |  |  | $ | 6.2 |  |  | $ | 7.3 |  |  | $ | 1.3 |  |  | $ | 1.6 |  |  | $ | 0.6 |
Interest Cost | 133.0 |  |  | 28.1 |  |  | 29.0 |  |  | 14.5 |  |  | 18.3 |  |  | 3.3 |  |  | 5.0 |  |  | 2.1 |
Expected Return on Plan Assets | (298.8) |  |  | (59.6) |  |  | (77.2) |  |  | (33.5) |  |  | (55.1) |  |  | (7.4) |  |  | (25.5) |  |  | (4.2) |
Actuarial Loss | 150.7 |  |  | 29.4 |  |  | 41.3 |  |  | 11.8 |  |  | 6.3 |  |  | 0.9 |  |  | 1.8 |  |  | 0.6 |
Prior Service Cost/(Credit) | 0.8 |  |  | — |  |  | 0.2 |  |  | — |  |  | (15.9) |  |  | 0.8 |  |  | (12.7) |  |  | 0.3 |
Total Net Periodic Benefit Plan Expense/(Income) | $ | 42.7 |  |  | $ | 14.4 |  |  | $ | 4.7 |  |  | $ | (1.0) |  |  | $ | (39.1) |  |  | $ | (1.1) |  |  | $ | (29.8) |  |  | $ | (0.6) |
Intercompany Expense/(Income) Allocations | N/A |  | $ | 6.7 |  |  | $ | 6.5 |  |  | $ | 2.2 |  |  | N/A |  | $ | (0.9) |  |  | $ | (1.0) |  |  | $ | (0.4) |

X
- References No definition available. + Details
Name: | us-gaap_PostemploymentBenefitsAbstract
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 -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfNetBenefitCostsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration