v3.26.1
Debt - Unsecured Debt (Details) - Unsecured notes
$ in Millions
Sep. 30, 2025
USD ($)
Unsecured Notes, 3.950%  
Debt Instrument [Line Items]  
Principal Amount $ 650
Interest Rate 3.95%
Discount $ 2
Unsecured Notes, 4.000%  
Debt Instrument [Line Items]  
Principal Amount $ 750
Interest Rate 4.00%
Discount $ 3
Unsecured Notes, 4.250%  
Debt Instrument [Line Items]  
Principal Amount $ 1,100
Interest Rate 4.25%
Discount $ 6
Unsecured Notes, 4.500%  
Debt Instrument [Line Items]  
Principal Amount $ 1,300
Interest Rate 4.50%
Discount $ 8
Unsecured Notes, 4.850%  
Debt Instrument [Line Items]  
Principal Amount $ 1,200
Interest Rate 4.85%
Discount $ 8