v3.26.1
Debt - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Debt Instrument [Line Items]      
Commercial paper $ 154   $ 314
Proceeds from issuance of commercial paper (maturities after three months) 1,348 $ 2,125  
Repayments of commercial paper 1,508 1,833  
Line of credit, total borrowing capacity 1,702    
Line of credit, available borrowing capacity 1,700    
Unsecured Debt | 2026 Term Loan Facility      
Debt Instrument [Line Items]      
Repayments of debt   16  
Revolving Credit Facility | Line of Credit      
Debt Instrument [Line Items]      
Proceeds from lines of credit $ 0 $ 0  
Commercial Paper      
Debt Instrument [Line Items]      
Weighted average interest rate 4.33%   4.21%
Weighted average term 24 days   35 days
Term of debt 3 months 3 months