Notes Payable and Long-Term Debt (Additional Information) (Details) - Senior Notes	May 31, 2022	May 04, 2022	Jul. 31, 2020
4.900% Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)	4.90%
4.700% Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)	4.70%
3.950% Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)	3.95%
3.600% Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)	3.60%
3.000% Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)	3.00%		3.00%
1.700% Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)	1.70%
4.250% Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)	4.25%	4.25%