v3.22.4
PENSION AND OTHER POSTRETIREMENT BENEFIT PROGRAMS - Fair Value of Pension Plan Assets and Liabilities (Details) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets $ 2,501 $ 3,784  
Quoted prices in active markets for identical assets (Level 1)      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 575 758  
Significant other observable inputs (Level 2)      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 1,116 1,928  
Significant unobservable inputs (Level 3)      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 8 9  
Fair Value, Measured at NAV      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 802 1,089  
Cash and cash equivalents      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 371 368  
Cash and cash equivalents | Quoted prices in active markets for identical assets (Level 1)      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 74 50  
Cash and cash equivalents | Significant other observable inputs (Level 2)      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 297 318  
Cash and cash equivalents | Significant unobservable inputs (Level 3)      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 0 0  
Cash and cash equivalents | Fair Value, Measured at NAV      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 0 0  
U.S. government and government agency issues      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 46 271  
U.S. government and government agency issues | Quoted prices in active markets for identical assets (Level 1)      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 0 0  
U.S. government and government agency issues | Significant other observable inputs (Level 2)      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 46 271  
U.S. government and government agency issues | Significant unobservable inputs (Level 3)      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 0 0  
U.S. government and government agency issues | Fair Value, Measured at NAV      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 0 0  
Corporate bonds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 310 573  
Corporate bonds | Quoted prices in active markets for identical assets (Level 1)      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 0 0  
Corporate bonds | Significant other observable inputs (Level 2)      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 310 573  
Corporate bonds | Significant unobservable inputs (Level 3)      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 0 0  
Corporate bonds | Fair Value, Measured at NAV      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 0 0  
Common stock      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 296 452  
Common stock | Quoted prices in active markets for identical assets (Level 1)      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 296 452  
Common stock | Significant other observable inputs (Level 2)      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 0 0  
Common stock | Significant unobservable inputs (Level 3)      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 0 0  
Common stock | Fair Value, Measured at NAV      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 0 0  
Mutual funds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 340 521  
Mutual funds | Quoted prices in active markets for identical assets (Level 1)      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 184 235  
Mutual funds | Significant other observable inputs (Level 2)      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 156 286  
Mutual funds | Significant unobservable inputs (Level 3)      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 0 0  
Mutual funds | Fair Value, Measured at NAV      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 0 0  
Common/collective trust funds      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 790 1,118  
Common/collective trust funds | Quoted prices in active markets for identical assets (Level 1)      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 0 0  
Common/collective trust funds | Significant other observable inputs (Level 2)      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 251 358  
Common/collective trust funds | Significant unobservable inputs (Level 3)      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 0 0  
Common/collective trust funds | Fair Value, Measured at NAV      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 539 760  
Partnership investments      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 263 329  
Partnership investments | Quoted prices in active markets for identical assets (Level 1)      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 0 0  
Partnership investments | Significant other observable inputs (Level 2)      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 0 0  
Partnership investments | Significant unobservable inputs (Level 3)      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 0 0  
Partnership investments | Fair Value, Measured at NAV      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 263 329  
Other holdings      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 85 152  
Other holdings | Quoted prices in active markets for identical assets (Level 1)      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 21 21  
Other holdings | Significant other observable inputs (Level 2)      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 56 122  
Other holdings | Significant unobservable inputs (Level 3)      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets 8 9 $ 11
Other holdings | Fair Value, Measured at NAV      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of pension plan assets $ 0 $ 0