v3.26.3
Borrowings Under Credit Facilities and Commercial Paper Program - Narrative (Details)
$ in Thousands
 1 Months Ended 9 Months Ended
Aug. 31, 2026
CAD ($)
Sep. 30, 2026
USD ($)
term
bank
Sep. 30, 2026
CAD ($)
term
bank
Dec. 31, 2025
USD ($)
 [1]
Line of Credit Facility [Line Items]        
Number of banks in consortium | bank   32 32  
Unsecured credit facility and commercial paper   $ 1,041,054,000   $ 0
Principal   18,313,223,000    
US Dollar Denominated Commercial Paper Program | Commercial paper note program        
Line of Credit Facility [Line Items]        
Principal   760,000,000    
Principal amount   $ 3,000,000,000    
Weighted average interest rate   4.13% 4.13%  
Weighted average remaining maturity   1 day    
US Dollar Denominated Commercial Paper Program | Commercial paper note program | Maximum        
Line of Credit Facility [Line Items]        
Debt instrument, term (in days)   397 days    
Canadian Dollar Denominated Commercial Paper Program | Commercial paper note program        
Line of Credit Facility [Line Items]        
Principal amount $ 1,000,000      
Weighted average interest rate   2.62% 2.62%  
Weighted average remaining maturity   22 days    
Short term debt   $ 281,480,000 $ 400,000  
Short term debt, net   281,054,000    
Unamortized discount   426,000    
Canadian Dollar Denominated Commercial Paper Program | Maximum | Commercial paper note program        
Line of Credit Facility [Line Items]        
Debt instrument, term (in days) 365 days      
Revolving Credit Facility        
Line of Credit Facility [Line Items]        
Unsecured line of credit arrangement   6,250,000,000    
Unsecured credit facility and commercial paper   $ 0    
Number of successive terms | term   2 2  
Successive term   6 months    
Available in alternate currencies   $ 1,750,000,000    
Interest rate margin (in percent)   0.675%    
Annual facility fee for each bank based on commitment amount   0.125%    
Revolving Credit Facility | Accordion feature        
Line of Credit Facility [Line Items]        
Unsecured line of credit arrangement   $ 1,250,000,000    
Revolving Credit Facility | Credit Facility, Tranche Due July 2029        
Line of Credit Facility [Line Items]        
Unsecured line of credit arrangement   2,000,000,000    
Unsecured credit facility and commercial paper   0    
Revolving Credit Facility | Credit Facility, Tranche Due March 2030        
Line of Credit Facility [Line Items]        
Unsecured line of credit arrangement   $ 4,250,000,000    
[1] The consolidated balance sheet at December 31, 2025 has been derived from the audited financial statements at that date but does not include all of the information and footnotes required by U.S. generally accepted accounting principles for complete financial statements.