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v3.23.3

Employee Benefits - Schedule of Net Periodic Benefit (Income) Expense (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Pension Plans |  |  |  |
Components of net periodic (benefit) expense |  |  |  |
Service cost | $ 7 | $ 11 | $ 19 | $ 34
Interest cost | 67 | 53 | 202 | 155
Expected return on plan assets | (72) | (100) | (215) | (302)
Recognition of prior service cost (credit) | (2) | (3) | (5) | (8)
Recognition of actuarial loss | 27 | 32 | 78 | 99
Net periodic expense (income) | 27 | (7) | 79 | (22)
Post-Retirement Benefit Plans |  |  |  |
Components of net periodic (benefit) expense |  |  |  |
Service cost | 1 | 3 | 4 | 8
Interest cost | 26 | 15 | 77 | 45
Recognition of prior service cost (credit) | (2) | 1 | (6) | 5
Recognition of actuarial loss | (5) | 0 | (15) | 0
Net periodic expense (income) | $ 20 | $ 19 | $ 60 | $ 58

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- Definition Amount of prior service cost (credit) recognized in net periodic benefit cost (credit) of defined benefit plan. + References Reference 1: 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 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 3A -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480535/715-20-45-3A Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480482/715-20-55-18 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (h)(5) -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 6 -Subparagraph (a)(5) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-6 + Details
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