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RETIREMENT BENEFIT PLANS - Funded status of plans with ABO in excess of plan assets (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Accumulated benefit obligations |  |
Accumulated benefit obligation | $ (658) | $ (2,401)
Plan assets | 442 | 1,924
Funded status of plan | (216) | (477)
Projected benefit obligations |  |
Projected benefit obligation | (731) | (2,500)
Plan assets | 478 | 1,973
Total pension deficiency | (253) | (527)
United States |  |
Accumulated benefit obligations |  |
Funded status of plan | (6) | (15)
Projected benefit obligations |  |
Total pension deficiency | (6) | (15)
United Kingdom |  |
Accumulated benefit obligations |  |
Funded status of plan | (11) | (202)
Projected benefit obligations |  |
Total pension deficiency | (11) | (202)
Germany |  |
Accumulated benefit obligations |  |
Funded status of plan | (89) | (139)
Projected benefit obligations |  |
Total pension deficiency | (95) | (147)
Other foreign |  |
Accumulated benefit obligations |  |
Funded status of plan | (110) | (121)
Projected benefit obligations |  |
Total pension deficiency | $ (141) | $ (163)

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- Definition Defined Benefit Plan, Pension Plan with Projected Benefit Obligation in Excess of Plan Asset, Funded Status + References No definition available. + Details
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- Definition Amount of funded (unfunded) status of defined benefit plan, measured as difference between fair value of plan assets and benefit obligation. Includes, but is not limited to, overfunded (underfunded) status. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123453770&loc=d3e1703-114919 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://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 http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 + Details
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