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PENSIONS AND OTHER POSTRETIREMENT BENEFITS - Pension and Other Postretirement Benefits (Details) - USD ($) $ in Millions |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Jan. 04, 2021 | Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Pension Plan |  |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |  |
Service cost |  | $ 11 | $ 14 | $ 35 | $ 42
Interest cost |  | 32 | 26 | 95 | 78
Expected return on plan assets |  | (93) | (89) | (277) | (269)
Prior service costs (credits) |  | 1 | 1 | 1 | 1
Net actuarial loss (gain) |  | 4 | 8 | 11 | 24
Net periodic benefit costs (credits) |  | (45) | (40) | (135) | (124)
Defined benefit pension contributions | $ 118 | 1 | 1 | 1 | 154
Other Postretirement Benefit Plans, Defined Benefit |  |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |  |
Service cost |  | 11 | 13 | 32 | 38
Interest cost |  | 19 | 19 | 59 | 56
Expected return on plan assets |  | (10) | (10) | (29) | (30)
Prior service costs (credits) |  | 1 | (2) | 1 | (2)
Net actuarial loss (gain) |  | (3) | 1 | (9) | 3
Net periodic benefit costs (credits) |  | 18 | 21 | 54 | 65
OPEB contributions |  | $ 24 | $ 22 | $ 80 | $ 27

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- Definition Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(1) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI https://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e2709-114920 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 18 -URI https://asc.fasb.org/extlink&oid=123450688&loc=d3e4587-114921 + Details
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