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PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Tables) | 6 Months Ended
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Jun. 30, 2023
Retirement Benefits [Abstract] |
Schedule of Components of Net Benefit Income | The following tables provide the components of our net periodic benefit income for our defined benefit plans, including defined benefit pension plans and other postretirement defined benefit plans:
| Quarter Ended June 30, 2023 |  | Two Quarters Ended June 30, 2023
(In millions) | Pension |  | Other Benefits |  | Pension |  | Other Benefits
Net periodic benefit income |  |  |  |  |  |  |
Operating |  |  |  |  |  |  |
Service cost | $ | 6 |  |  | $ | 1 |  |  | $ | 12 |  |  | $ | 1 |
Non-operating |  |  |  |  |  |  |
Interest cost | 91 |  |  | 2 |  |  | 183 |  |  | 5 |
Expected return on plan assets | (152) |  |  | (5) |  |  | (305) |  |  | (10) |
Amortization of net actuarial gain | (3) |  |  | (5) |  |  | (5) |  |  | (10) |
Amortization of prior service (credit) cost | (6) |  |  | 1 |  |  | (13) |  |  | 1 |
Non-service cost periodic benefit income | (70) |  |  | (7) |  |  | (140) |  |  | (14) |
Net periodic benefit income | $ | (64) |  |  | $ | (6) |  |  | $ | (128) |  |  | $ | (13) |
| Quarter Ended July 1, 2022 |  | Two Quarters Ended July 1, 2022
(In millions) | Pension |  | Other Benefits |  | Pension |  | Other Benefits
Net periodic benefit income |  |  |  |  |  |  |
Operating |  |  |  |  |  |  |
Service cost | $ | 12 |  |  | $ | — |  |  | $ | 22 |  |  | $ | 1 |
Non-operating |  |  |  |  |  |  |
Interest cost | 55 |  |  | 2 |  |  | 110 |  |  | 4 |
Expected return on plan assets | (156) |  |  | (6) |  |  | (312) |  |  | (11) |
Amortization of net actuarial loss (gain) | 3 |  |  | (2) |  |  | 5 |  |  | (4) |
Amortization of prior service (credit) cost | (8) |  |  | 1 |  |  | (14) |  |  | 1 |
Non-service cost periodic benefit income | (106) |  |  | (5) |  |  | (211) |  |  | (10) |
Net periodic benefit income | $ | (94) |  |  | $ | (5) |  |  | $ | (189) |  |  | $ | (9) |

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- 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
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