v3.26.1
Debt and Credit Agreements - Summary of Outstanding Long-term Debt (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Debt Instrument [Line Items]    
Total long-term debt $ 17,480 $ 7,403
Unamortized debt discount and premium, net (16) (1)
Unamortized fair value of debt (19) 0
Unamortized debt issuance costs (81) (60)
Long-term debt due within one year (370) (92)
Long-term debt 16,994 7,250
Senior unsecured notes    
Debt Instrument [Line Items]    
Total long-term debt 10,833 5,688
Issued Amount $ 2,290  
Senior unsecured notes | Minimum    
Debt Instrument [Line Items]    
Interest Rate 3.75%  
Senior unsecured notes | Maximum    
Debt Instrument [Line Items]    
Interest Rate 6.50%  
Tax-exempt notes    
Debt Instrument [Line Items]    
Total long-term debt $ 412 412
Tax-exempt notes | Minimum    
Debt Instrument [Line Items]    
Interest Rate 4.10%  
Tax-exempt notes | Maximum    
Debt Instrument [Line Items]    
Interest Rate 4.45%  
Notes payable and other    
Debt Instrument [Line Items]    
Total long-term debt $ 85 53
Notes payable and other | Minimum    
Debt Instrument [Line Items]    
Interest Rate 1.71%  
Notes payable and other | Maximum    
Debt Instrument [Line Items]    
Interest Rate 8.18%  
Variable rates    
Debt Instrument [Line Items]    
Total long-term debt $ 5,274 597
Variable rates | Minimum    
Debt Instrument [Line Items]    
Interest Rate 4.13%  
Variable rates | Maximum    
Debt Instrument [Line Items]    
Interest Rate 5.98%  
Fixed rates    
Debt Instrument [Line Items]    
Total long-term debt $ 876 $ 653
Fixed rates | Minimum    
Debt Instrument [Line Items]    
Interest Rate 2.29%  
Fixed rates | Maximum    
Debt Instrument [Line Items]    
Interest Rate 8.64%