Annual report pursuant to Section 13 and 15(d)

PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Details 4)

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PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Details 4) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Defined Benefit Plan Disclosure      
Contributions expected to be made in next fiscal year $ 26    
Estimated future benefit payments for funded and unfunded plans      
2022 545    
2023 510    
2024 517    
2025 521    
2026 519    
2027-2031 2,601    
Multiemployer Plan, Employer Contribution, Cost $ 1 $ 2 $ 5
Assumed health care cost trend rates      
Health care cost trend rate assumed for the next year (as a percent) 6.75% 6.75%  
Rate at which the cost trend rate is assumed to decline, the ultimate trend rate (as a percent) 5.25% 5.25%  
Year in which the rate reaches the ultimate trend rate 2027 2025  
Pension benefits      
Estimated future benefit payments for funded and unfunded plans      
2022 $ 486    
2023 454    
2024 464    
2025 470    
2026 471    
2027-2031 2,390    
Other benefits      
Estimated future benefit payments for funded and unfunded plans      
2022 59    
2023 56    
2024 53    
2025 51    
2026 48    
2027-2031 $ 211    
Domestic Plan      
Estimated future benefit payments for funded and unfunded plans      
Defined Contribution Plan, Employer Matching Contribution, Percent of Match 3.50%    
Company costs associated with defined contribution plans $ 32 $ 43 43
Foreign Plan      
Estimated future benefit payments for funded and unfunded plans      
Company costs associated with defined contribution plans $ 79 $ 63 $ 64