Debt - Narrative (Details)		12 Months Ended
	Oct. 07, 2022 USD ($)	Jul. 31, 2024 USD ($)	Oct. 31, 2023	Jul. 31, 2023 USD ($)	Nov. 30, 2017 USD ($)	Jun. 30, 2015 USD ($)
Schedule Of Long-Term And Short-Term Debt [Line Items]
Hedged liability, fair value hedge		$ 300,000,000		$ 355,000,000
Principal amount of debt		$ 3,950,000,000		3,805,000,000
Variable Rate, Receivable Securitization
Schedule Of Long-Term And Short-Term Debt [Line Items]
Credit spread adjustment		0.10%
Accordion feature, maximum amount		$ 1,500,000,000
Variable Rate, Receivable Securitization | Minimum
Schedule Of Long-Term And Short-Term Debt [Line Items]
Interest rate during period		6.30%
Variable Rate, Receivable Securitization | Maximum
Schedule Of Long-Term And Short-Term Debt [Line Items]
Interest rate during period		6.40%
Private Placement Notes:
Schedule Of Long-Term And Short-Term Debt [Line Items]
Debt instrument, face amount					$ 355,000,000	$ 800,000,000
Percentage of principal amount redeemed (in percent)		100.00%
Private Placement Notes: | 3.30% due November 2023
Schedule Of Long-Term And Short-Term Debt [Line Items]
Interest rate			3.30%
Principal amount of debt		$ 0		55,000,000
Unsecured Senior Notes:
Schedule Of Long-Term And Short-Term Debt [Line Items]
Debt instrument, face amount		$ 2,350,000,000
Redemption price (in percent)		100.00%
Term Loan | Term Loan
Schedule Of Long-Term And Short-Term Debt [Line Items]
Principal amount of debt		$ 500,000,000		500,000,000
Credit spread adjustment	0.10%
Maximum net leverage ratio		3.50
Step-up leverage ratio		4.00
Term Loan | Term Loan | Minimum
Schedule Of Long-Term And Short-Term Debt [Line Items]
Additional margin spread on variable rate	0.0100
Interest rate during period		6.50%
Term Loan | Term Loan | Maximum
Schedule Of Long-Term And Short-Term Debt [Line Items]
Additional margin spread on variable rate	0.0150
Interest rate during period		6.60%
Line of Credit | Revolving Credit Facility
Schedule Of Long-Term And Short-Term Debt [Line Items]
Credit spread adjustment	0.10%
Line of credit facility	$ 1,350,000,000
Borrowings outstanding		$ 0		$ 0
Line of Credit | Revolving Credit Facility | Minimum
Schedule Of Long-Term And Short-Term Debt [Line Items]
Additional margin spread on variable rate	0.0020
Line of Credit | Revolving Credit Facility | Maximum
Schedule Of Long-Term And Short-Term Debt [Line Items]
Additional margin spread on variable rate	0.0075
Corporate | Variable Rate, Receivable Securitization
Schedule Of Long-Term And Short-Term Debt [Line Items]
Debt instrument, face amount		1,100,000,000
Swingline adjustment		$ 100,000,000