Debt (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
	May 31, 2023	May 31, 2022	Feb. 28, 2023
Debt Instrument [Line Items]
Outstanding Balance	$ 18,159,454		$ 17,775,137
Capitalized interest	1,400	$ 800
Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity	2,000,000
Unused capacity	2,000,000
Term Loan [Member]
Debt Instrument [Line Items]
Outstanding Balance	$ 300,000
Long-Term Debt, Percentage Bearing Variable Interest, Percentage Rate	5.93%
Senior Notes [Member]
Debt Instrument [Line Items]
Outstanding Balance	$ 400,000
Financing obligation | Minimum
Debt Instrument [Line Items]
Initial lease terms, in years	15 years
Financing obligation | Maximum
Debt Instrument [Line Items]
Initial lease terms, in years	20 years
October 2021 Term Loan
Debt Instrument [Line Items]
Outstanding Balance	$ 700,000
Long-Term Debt, Percentage Bearing Variable Interest, Percentage Rate	5.93%