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RETIREMENT BENEFITS - Plan Assets (Details)
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
U.S. | Pension Plans      
Defined Benefit Plan Disclosure      
Weighted average allocation (as a percent)   100.00% 100.00%
U.S. | Postretirement Benefit Plans      
Defined Benefit Plan Disclosure      
Weighted average allocation (as a percent)   100.00% 100.00%
U.S. | Equity securities | Pension Plans      
Defined Benefit Plan Disclosure      
Weighted average allocation (as a percent)   7.00% 7.00%
U.S. | Equity securities | Postretirement Benefit Plans      
Defined Benefit Plan Disclosure      
Weighted average allocation (as a percent)   7.00% 7.00%
U.S. | Equity securities | Forecast | Minimum      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent) 0.00%    
U.S. | Equity securities | Forecast | Maximum      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent) 22.00%    
U.S. | Debt securities | Pension Plans      
Defined Benefit Plan Disclosure      
Weighted average allocation (as a percent)   71.00% 72.00%
U.S. | Debt securities | Postretirement Benefit Plans      
Defined Benefit Plan Disclosure      
Weighted average allocation (as a percent)   71.00% 72.00%
U.S. | Debt securities | Forecast | Minimum      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent) 55.00%    
U.S. | Debt securities | Forecast | Maximum      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent) 114.00%    
U.S. | Real estate | Pension Plans      
Defined Benefit Plan Disclosure      
Weighted average allocation (as a percent)   3.00% 2.00%
U.S. | Real estate | Postretirement Benefit Plans      
Defined Benefit Plan Disclosure      
Weighted average allocation (as a percent)   3.00% 2.00%
U.S. | Real estate | Forecast | Minimum      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent) 0.00%    
U.S. | Real estate | Forecast | Maximum      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent) 4.00%    
U.S. | Private equity | Pension Plans      
Defined Benefit Plan Disclosure      
Weighted average allocation (as a percent)   7.00% 6.00%
U.S. | Private equity | Postretirement Benefit Plans      
Defined Benefit Plan Disclosure      
Weighted average allocation (as a percent)   7.00% 6.00%
U.S. | Private equity | Forecast | Minimum      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent) 0.00%    
U.S. | Private equity | Forecast | Maximum      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent) 5.00%    
U.S. | Other investments | Pension Plans      
Defined Benefit Plan Disclosure      
Weighted average allocation (as a percent)   12.00% 13.00%
U.S. | Other investments | Postretirement Benefit Plans      
Defined Benefit Plan Disclosure      
Weighted average allocation (as a percent)   12.00% 13.00%
U.S. | Other investments | Forecast | Minimum      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent) 0.00%    
U.S. | Other investments | Forecast | Maximum      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent) 23.00%    
Non-U.S. | Weighted Average | Pension Plans      
Defined Benefit Plan Disclosure      
Weighted average allocation (as a percent)   100.00% 100.00%
Non-U.S. | Weighted Average | Postretirement Benefit Plans      
Defined Benefit Plan Disclosure      
Weighted average allocation (as a percent)   100.00% 100.00%
Non-U.S. | Equity securities | Minimum | Pension Plans      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent)   0.00% 0.00%
Non-U.S. | Equity securities | Minimum | Postretirement Benefit Plans      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent)   0.00% 0.00%
Non-U.S. | Equity securities | Maximum | Pension Plans      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent)   63.00% 100.00%
Non-U.S. | Equity securities | Maximum | Postretirement Benefit Plans      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent)   48.00% 42.00%
Non-U.S. | Equity securities | Weighted Average | Pension Plans      
Defined Benefit Plan Disclosure      
Weighted average allocation (as a percent)   19.00% 16.00%
Non-U.S. | Equity securities | Weighted Average | Postretirement Benefit Plans      
Defined Benefit Plan Disclosure      
Weighted average allocation (as a percent)   47.00% 41.00%
Non-U.S. | Equity securities | Forecast | Minimum | Pension Plans      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent) 0.00%    
Non-U.S. | Equity securities | Forecast | Minimum | Postretirement Benefit Plans      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent) 0.00%    
Non-U.S. | Equity securities | Forecast | Maximum | Pension Plans      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent) 100.00%    
Non-U.S. | Equity securities | Forecast | Maximum | Postretirement Benefit Plans      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent) 46.00%    
Non-U.S. | Debt securities | Minimum | Pension Plans      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent)   0.00% 0.00%
Non-U.S. | Debt securities | Minimum | Postretirement Benefit Plans      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent)   45.00% 53.00%
Non-U.S. | Debt securities | Maximum | Pension Plans      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent)   100.00% 100.00%
Non-U.S. | Debt securities | Maximum | Postretirement Benefit Plans      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent)   100.00% 100.00%
Non-U.S. | Debt securities | Weighted Average | Pension Plans      
Defined Benefit Plan Disclosure      
Weighted average allocation (as a percent)   73.00% 76.00%
Non-U.S. | Debt securities | Weighted Average | Postretirement Benefit Plans      
Defined Benefit Plan Disclosure      
Weighted average allocation (as a percent)   49.00% 53.00%
Non-U.S. | Debt securities | Forecast | Minimum | Pension Plans      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent) 0.00%    
Non-U.S. | Debt securities | Forecast | Minimum | Postretirement Benefit Plans      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent) 50.00%    
Non-U.S. | Debt securities | Forecast | Maximum | Pension Plans      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent) 100.00%    
Non-U.S. | Debt securities | Forecast | Maximum | Postretirement Benefit Plans      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent) 100.00%    
Non-U.S. | Real estate | Minimum | Pension Plans      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent)   0.00% 0.00%
Non-U.S. | Real estate | Maximum | Pension Plans      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent)   15.00% 14.00%
Non-U.S. | Real estate | Weighted Average | Pension Plans      
Defined Benefit Plan Disclosure      
Weighted average allocation (as a percent)   1.00% 1.00%
Non-U.S. | Real estate | Forecast | Minimum | Pension Plans      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent) 0.00%    
Non-U.S. | Real estate | Forecast | Maximum | Pension Plans      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent) 15.00%    
Non-U.S. | Other investments | Minimum | Pension Plans      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent)   0.00% 0.00%
Non-U.S. | Other investments | Minimum | Postretirement Benefit Plans      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent)   0.00% 0.00%
Non-U.S. | Other investments | Maximum | Pension Plans      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent)   100.00% 100.00%
Non-U.S. | Other investments | Maximum | Postretirement Benefit Plans      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent)   7.00% 6.00%
Non-U.S. | Other investments | Weighted Average | Pension Plans      
Defined Benefit Plan Disclosure      
Weighted average allocation (as a percent)   7.00% 7.00%
Non-U.S. | Other investments | Weighted Average | Postretirement Benefit Plans      
Defined Benefit Plan Disclosure      
Weighted average allocation (as a percent)   4.00% 6.00%
Non-U.S. | Other investments | Forecast | Minimum | Pension Plans      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent) 0.00%    
Non-U.S. | Other investments | Forecast | Minimum | Postretirement Benefit Plans      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent) 0.00%    
Non-U.S. | Other investments | Forecast | Maximum | Pension Plans      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent) 100.00%    
Non-U.S. | Other investments | Forecast | Maximum | Postretirement Benefit Plans      
Defined Benefit Plan Disclosure      
Target asset allocation (as a percent) 4.00%