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RETIREMENT BENEFITS PLANS - Benefits Expense (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Pension plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans |  |  |
Total expense (income) |  | $ 66 |
Pension plans | United States |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans |  |  |
Service cost | $ 27 | 37 | $ 97
Interest cost | 117 | 70 | 103
Expected return on plan assets | (204) | (223) | (231)
Amortization | 15 | 36 | 102
Benefit plans | (46) | (80) | 71
Settlements, curtailments and special termination benefits | 61 | 65 | 62
Total expense (income) | 15 | (15) | 133
Settlement and curtailment expense | (61) | (65) | (62)
Pension plans | Foreign Plan |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans |  |  |
Service cost | 59 | 72 | 73
Interest cost | 47 | 40 | 45
Expected return on plan assets | (115) | (120) | (109)
Amortization | 45 | 71 | 60
Benefit plans | 37 | 63 | 69
Settlements, curtailments and special termination benefits | 2 | 17 | 10
Total expense (income) | 39 | 80 | 79
Settlement and curtailment expense | (2) | (17) | (10)
Other postretirement benefits plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans |  |  |
Service cost | 1 | 1 | 2
Interest cost | 7 | 6 | 9
Expected return on plan assets | (1) | 0 | 0
Amortization | (7) | (5) | (13)
Benefit plans | 0 | 2 | (2)
Settlements, curtailments and special termination benefits | 0 | (1) | 0
Total expense (income) | 0 | 1 | (2)
Settlement and curtailment expense | $ 0 | 1 | $ 0
Hydraulics Business | Pension plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans |  |  |
Settlements, curtailments and special termination benefits |  | (13) |
Settlement and curtailment expense |  | $ 13 |

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- Definition Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 45 -Paragraph 3A -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123453770&loc=SL108413299-114919 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(4) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 3: 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 4: 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 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a)(4) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e2709-114920 + Details
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- Definition Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan. + References Reference 1: 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 2: 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 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h)(3) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 45 -Paragraph 3A -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123453770&loc=SL108413299-114919 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a)(3) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e2709-114920 + Details
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