Borrowings - Credit Agreements (Details) - USD ($)	Aug. 31, 2025	Apr. 30, 2025	Feb. 28, 2025
Schedule of Debt [Line Items]
Short-term borrowings	$ 252,500,000		$ 806,700,000
Outstanding commercial paper	10,357,300,000
2025 Restatement Agreement | Line of Credit
Schedule of Debt [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		$ 2,250,000,000
Two-Year Term Facility | Unsecured debt
Schedule of Debt [Line Items]
Aggregate principal amount	500,000,000.0
Revolving credit facility
Schedule of Debt [Line Items]
Aggregate principal amount	2,250,000,000
Short-term borrowings	$ 0		$ 0
Weighted average interest rate	0.00%		0.00%
SOFR margin	0.00%		0.00%
Remaining borrowing capacity	$ 1,986,000,000		$ 1,430,700,000
Letters of credit
Schedule of Debt [Line Items]
Aggregate principal amount	200,000,000.0
Outstanding letters of credit	11,300,000		11,300,000
Commercial paper
Schedule of Debt [Line Items]
Aggregate principal amount	2,250,000,000
Short-term borrowings	$ 252,500,000		$ 806,700,000
Weighted average interest rate	4.60%		4.70%
Outstanding commercial paper	$ 252,700,000		$ 808,000,000.0