v3.25.0.1
Indebtedness: (Short-Term Borrowings) (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Short-term Debt [Line Items]    
Amount Outstanding $ 137 $ 1,968
Commercial paper    
Short-term Debt [Line Items]    
Amount Outstanding $ 0 $ 1,685
Average Year-End Rate 0.00% 5.60%
Bank loans    
Short-term Debt [Line Items]    
Amount Outstanding $ 137 $ 283
Average Year-End Rate 8.60% 8.90%