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RETIREMENT SAVINGS PLANS - Schedule of Allocation of Plan Assets (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Total plan assets $ 471 $ 540 $ 533
Fair Value Measured at Net Asset Value Per Share      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Total plan assets 60 40  
Total plan assets measured at fair value | Level 1, 2, and 3      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Total plan assets 601 638  
Total plan assets measured at fair value | Level 1      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Total plan assets 72 57  
Total plan assets measured at fair value | Level 2      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Total plan assets 463 505  
Total plan assets measured at fair value | Level 3      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Total plan assets 66 76  
Debt securities      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Total plan assets 19    
Debt securities | Level 1      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Total plan assets 19    
Debt securities | Level 2      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Total plan assets 0    
Debt securities | Level 3      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Total plan assets 0    
Equity securities      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Total plan assets 55 64  
Equity securities | Level 1      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Total plan assets 25 36  
Equity securities | Level 2      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Total plan assets 30 28  
Equity securities | Level 3      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Total plan assets 0 0  
Fixed income securities      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Total plan assets 444 541  
Fixed income securities | Level 1      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Total plan assets 22 12  
Fixed income securities | Level 2      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Total plan assets 356 453  
Fixed income securities | Level 3      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Total plan assets 66 76  
Multi-asset credit fund      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Total plan assets 77 24  
Multi-asset credit fund | Level 1      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Total plan assets 0 0  
Multi-asset credit fund | Level 2      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Total plan assets 77 24  
Multi-asset credit fund | Level 3      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Total plan assets 0 0  
Cash      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Total plan assets 6 9  
Cash | Level 1      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Total plan assets 6 9  
Cash | Level 2      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Total plan assets 0 0  
Cash | Level 3      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Total plan assets $ 0 $ 0  
Real assets      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Benefit Plan, Plan Assets, Fair Value by Hierarchy and NAV [Extensible Enumeration] Fair Value Measured at Net Asset Value Per Share Fair Value Measured at Net Asset Value Per Share  
Total plan assets $ 16 $ 18  
Hedge funds      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Benefit Plan, Plan Assets, Fair Value by Hierarchy and NAV [Extensible Enumeration] Fair Value Measured at Net Asset Value Per Share Fair Value Measured at Net Asset Value Per Share  
Total plan assets $ 44 $ 22  
Derivatives      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Total plan assets $ (190) $ (138)