Debt - Interest Expense, Debt (Details) - USD ($) $ in Millions	12 Months Ended
	Nov. 30, 2025	Nov. 30, 2024	Nov. 30, 2023
Debt Instrument [Line Items]
Amortization of discounts and debt issue costs	$ 116	$ 141	$ 161
Convertible | Senior Convertible Notes due 2023
Debt Instrument [Line Items]
Contractual interest expense	65	86	91
Amortization of discounts and debt issue costs	6	8	9
Interest expense total	$ 71	$ 94	$ 100