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Benefit Plans (Fair Value of Plan Assets) (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
UNITED STATES      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Plan Assets, Amount $ 844 $ 883 $ 911
UNITED STATES | Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Plan Assets, Amount 5 5  
UNITED STATES | Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Plan Assets, Amount 839 878  
UNITED STATES | Level 3      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
UNITED STATES | Mutual funds      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Plan Assets, Amount 646 685  
UNITED STATES | Mutual funds | Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
UNITED STATES | Mutual funds | Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Plan Assets, Amount 646 685  
UNITED STATES | Mutual funds | Level 3      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
UNITED STATES | Cash and Cash Equivalents [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Plan Assets, Amount 5 5  
UNITED STATES | Cash and Cash Equivalents [Member] | Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Plan Assets, Amount 5 5  
UNITED STATES | Cash and Cash Equivalents [Member] | Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
UNITED STATES | Cash and Cash Equivalents [Member] | Level 3      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
UNITED STATES | Equity Funds [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Plan Assets, Amount 193 193  
UNITED STATES | Equity Funds [Member] | Level 1      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
UNITED STATES | Equity Funds [Member] | Level 2      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Plan Assets, Amount 193 193  
UNITED STATES | Equity Funds [Member] | Level 3      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Foreign Plan [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Plan Assets, Amount $ 14 $ 127 $ 114