v3.26.3
Debt obligations - Schedule of Short-term Debt (Detail) - USD ($)
$ in Millions
1 Months Ended 9 Months Ended
Feb. 28, 2026
Sep. 30, 2026
Dec. 31, 2025
Short-Term Debt [Line Items]      
Current maturities of long-term liabilities   $ 4,038 $ 1,798
Short-term debt   $ 4,038 $ 1,820
Convertible Debt      
Short-Term Debt [Line Items]      
Weighted average interest rate   0.25%  
Repayments of convertible senior debentures $ 23    
Convertible debentures      
Short-Term Debt [Line Items]      
Weighted average interest rate     0.25%
Maturity   2026  
Convertible debentures   $ 0 $ 23