v3.26.3
Short-Term Borrowings and Long-term Debt (Details) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2026
Sep. 30, 2026
Dec. 31, 2025
Line of Credit Facility [Line Items]        
Debt instrument, variable interest rate, type [extensible enumeration]     Term Secured Overnight Financing Rate (Term SOFR) [Member]  
Short-term borrowings $ 988 $ 988 $ 988 $ 960
Revolving credit facility | Credit agreement | Line of Credit        
Line of Credit Facility [Line Items]        
Borrowing limit, total initial borrowings 1,500 1,500 1,500  
Proceeds from short-term debt     750  
Repayments of short-term debt 750      
Short-term borrowings 0 0 $ 0  
Revolving credit facility | Credit agreement | Minimum | Line of Credit        
Line of Credit Facility [Line Items]        
Variable rate     0.75%  
Revolving credit facility | Credit agreement | Maximum | Line of Credit        
Line of Credit Facility [Line Items]        
Variable rate     1.25%  
Revolving credit facility | Unsecured Revolving Credit Facilities | Line of Credit        
Line of Credit Facility [Line Items]        
Borrowing limit, total initial borrowings 661 $ 661 $ 661  
Revolving credit facility | Unsecured Revolving Credit Facilities | Minimum | Line of Credit        
Line of Credit Facility [Line Items]        
Variable rate   0.94%    
Revolving credit facility | Unsecured Revolving Credit Facilities | Maximum | Line of Credit        
Line of Credit Facility [Line Items]        
Variable rate   1.55%    
Revolving credit facility | Other revolving credit facilities | Line of Credit        
Line of Credit Facility [Line Items]        
Borrowing limit, total initial borrowings 1,700 $ 1,700 1,700  
Short-term borrowings $ 988 $ 988 $ 988  
Debt instrument, average fixed interest rate (in percent) 2.87% 2.87% 2.87%