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PENSION AND OTHER POSTRETIREMENT BENEFITS (Details 3) - Assumptions and Plan Asset Targets |  | 12 Months Ended
--- | --- | ---
Jan. 01, 2022 Rate | Dec. 31, 2021 Rate | Dec. 31, 2020 Rate | Dec. 31, 2019 Rate
Other Postretirement Benefit Plan |  |  |  |
Assumptions Used in Determining the Pension Benefit Obligation |  |  |  |
Discount rate PBO (as a percent) |  | 2.75% | 2.30% |
Assumptions Used in Determining the Net Periodic Pension Cost and OPEB |  |  |  |
Discount rate net periodic benefit cost (as a percent) |  | 2.30% | 3.15% | 4.25%
Defined Benefit Plan, Assumed Health Care Cost Trend Rates |  |  |  |
Annual rate of increase in the per capita cost of covered health care benefits |  | 6.75% |  |
UNITED STATES |  |  |  |
Assumptions Used in Determining the Pension Benefit Obligation |  |  |  |
Discount rate PBO (as a percent) |  | 3.01% | 2.62% |
Cash balance crediting rate |  | 3.79% | 3.74% |
Compensation increase rate (as a percent) |  | 2.71% | 2.73% |
Assumptions Used in Determining the Net Periodic Pension Cost and OPEB |  |  |  |
Discount rate net periodic benefit cost (as a percent) |  | 2.62% | 3.36% | 4.36%
Expected return on plan assets (as a percent) |  | 6.25% | 6.25% | 6.25%
Compensation increase rate (as a percent) |  | 2.72% | 2.73% | 2.73%
Target Allocations |  |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage |  | 100.00% |  |
Asset allocation covers exposure to changes in portion of discount rate (as a percent) |  | 100.00% |  |
UNITED STATES | U.S. equities |  |  |  |
Target Allocations |  |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage |  | 5.00% |  |
UNITED STATES | Non-U.S. Equity |  |  |  |
Target Allocations |  |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage |  | 1.00% |  |
UNITED STATES | Global Equities |  |  |  |
Target Allocations |  |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage |  | 6.00% |  |
UNITED STATES | Equity Securities |  |  |  |
Target Allocations |  |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage |  | 12.00% |  |
UNITED STATES | Real Assets |  |  |  |
Target Allocations |  |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage |  | 6.00% |  |
UNITED STATES | Private Markets |  |  |  |
Target Allocations |  |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage |  | 6.00% |  |
UNITED STATES | Opportunistic credit |  |  |  |
Target Allocations |  |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage |  | 4.00% |  |
UNITED STATES | Fixed Income Funds |  |  |  |
Target Allocations |  |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage |  | 72.00% |  |
UNITED KINGDOM |  |  |  |
Assumptions Used in Determining the Pension Benefit Obligation |  |  |  |
Discount rate PBO (as a percent) |  | 1.95% | 1.50% |
Cash balance crediting rate |  | 0.00% | 0.00% |
Compensation increase rate (as a percent) |  | 3.75% | 3.75% |
Assumptions Used in Determining the Net Periodic Pension Cost and OPEB |  |  |  |
Discount rate net periodic benefit cost (as a percent) |  | 1.50% | 2.00% | 2.80%
Expected return on plan assets (as a percent) |  | 4.00% | 4.00% | 4.00%
Compensation increase rate (as a percent) |  | 3.75% | 3.75% | 3.75%
Target Allocations |  |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage |  | 100.00% |  |
Asset allocation covers exposure to changes in portion of discount rate (as a percent) |  | 90.00% |  |
UNITED KINGDOM | Global Equities |  |  |  |
Target Allocations |  |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage |  | 10.00% |  |
UNITED KINGDOM | Private Markets |  |  |  |
Target Allocations |  |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage |  | 12.00% |  |
UNITED KINGDOM | Fixed Income Funds |  |  |  |
Target Allocations |  |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage |  | 56.00% |  |
UNITED KINGDOM | Credit |  |  |  |
Target Allocations |  |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage |  | 16.00% |  |
UNITED KINGDOM | Diversifying strategies |  |  |  |
Target Allocations |  |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage |  | 5.00% |  |
UNITED KINGDOM | Cash |  |  |  |
Target Allocations |  |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage |  | 1.00% |  |
Minimum | UNITED STATES | U.S. equities |  |  |  |
Target Allocations |  |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage |  | 0.00% |  |
Minimum | UNITED STATES | Non-U.S. Equity |  |  |  |
Target Allocations |  |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage |  | 0.00% |  |
Minimum | UNITED STATES | Global Equities |  |  |  |
Target Allocations |  |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage |  | 3.00% |  |
Minimum | UNITED STATES | Real Assets |  |  |  |
Target Allocations |  |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage |  | 0.00% |  |
Minimum | UNITED STATES | Private Markets |  |  |  |
Target Allocations |  |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage |  | 0.00% |  |
Minimum | UNITED STATES | Opportunistic credit |  |  |  |
Target Allocations |  |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage |  | 0.00% |  |
Minimum | UNITED STATES | Fixed Income Funds |  |  |  |
Target Allocations |  |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage |  | 67.00% |  |
Maximum | UNITED STATES | U.S. equities |  |  |  |
Target Allocations |  |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage |  | 10.00% |  |
Maximum | UNITED STATES | Non-U.S. Equity |  |  |  |
Target Allocations |  |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage |  | 4.00% |  |
Maximum | UNITED STATES | Global Equities |  |  |  |
Target Allocations |  |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage |  | 9.00% |  |
Maximum | UNITED STATES | Real Assets |  |  |  |
Target Allocations |  |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage |  | 10.00% |  |
Maximum | UNITED STATES | Private Markets |  |  |  |
Target Allocations |  |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage |  | 10.00% |  |
Maximum | UNITED STATES | Opportunistic credit |  |  |  |
Target Allocations |  |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage |  | 10.00% |  |
Maximum | UNITED STATES | Fixed Income Funds |  |  |  |
Target Allocations |  |  |  |
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage |  | 77.00% |  |
Scenario, Forecast | Other Postretirement Benefit Plan |  |  |  |
Defined Benefit Plan, Assumed Health Care Cost Trend Rates |  |  |  |
Ultimate per capita trend rate for health care costs | 5.00% |  |  |
Scenario, Forecast | UNITED STATES |  |  |  |
Assumptions Used in Determining the Net Periodic Pension Cost and OPEB |  |  |  |
Expected return on plan assets (as a percent) | 6.25% |  |  |
Scenario, Forecast | UNITED KINGDOM |  |  |  |
Assumptions Used in Determining the Net Periodic Pension Cost and OPEB |  |  |  |
Expected return on plan assets (as a percent) | 3.75% |  |  |

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- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation 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 50 -Paragraph 1 -Subparagraph (k)(1) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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