Variable Interest Entities - Narrative (Details) $ in Millions	May 31, 2026 USD ($) vote
Revolving credit agreements
Variable Interest Entity [Line Items]
Variable interest entity, maximum borrowing capacity	$ 3,500
Variable interest entity, primary beneficiary
Variable Interest Entity [Line Items]
Guarantor obligations, maximum exposure, undiscounted	$ 106
Variable interest entity, primary beneficiary | NCSC
Variable Interest Entity [Line Items]
Number of votes per member for election of directors | vote	1
Variable interest entity, primary beneficiary | NCSC | Revolving credit agreements
Variable Interest Entity [Line Items]
Variable interest entity, maximum borrowing capacity	$ 2,000
Variable interest entity, primary beneficiary | NCSC | Revolving term loan
Variable Interest Entity [Line Items]
Variable interest entity, maximum borrowing capacity	$ 3,000