Debt - Narrative (Details)				1 Months Ended			3 Months Ended
	Sep. 05, 2024 USD ($)	Apr. 30, 2024 USD ($)	Feb. 05, 2024 USD ($)	Jun. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Jun. 30, 2020 USD ($)	Oct. 31, 2024 USD ($)	Oct. 31, 2023 USD ($)	Jul. 31, 2024 USD ($)
Debt Instrument [Line Items]
Net carrying value of debt							$ 6,124,000,000		$ 6,038,000,000
Line of Credit | Revolving Credit Facility | Subsidiary
Debt Instrument [Line Items]
Secured revolving credit facilities							670,000,000		585,000,000
The Senior Unsecured Notes | Senior Unsecured Notes
Debt Instrument [Line Items]
Proceeds from issuance						$ 1,980,000,000
Unamortized discount						2,000,000
Debt issuance costs						$ 15,000,000
Net carrying value of debt							1,500,000,000
Interest paid							0	$ 0
Redemption price (in percent)						101.00%
The 2023 Senior Unsecured Notes | Senior Unsecured Notes
Debt Instrument [Line Items]
Proceeds from issuance					$ 3,960,000,000
Unamortized discount					20,000,000
Debt issuance costs					$ 24,000,000
Net carrying value of debt							4,000,000,000
Interest paid							106,000,000	0
2024 Credit Facility | Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Net carrying value of debt							0
Interest paid							0
Line of credit, maximum borrowing capacity			$ 1,500,000,000
Option to increase credit amount			$ 1,000,000,000
Term of option to extend credit agreement			1 year
Restrictive covenant, ratio of total gross debt to EBIDTA			4.00
2024 Credit Facility | Line of Credit | Revolving Credit Facility | Base Rate | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate			0.00%
2024 Credit Facility | Line of Credit | Revolving Credit Facility | Base Rate | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate			0.125%
2024 Credit Facility | Line of Credit | Revolving Credit Facility | Secured Overnight Financing Rate (SOFR) | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate			0.70%
2024 Credit Facility | Line of Credit | Revolving Credit Facility | Secured Overnight Financing Rate (SOFR) | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate			1.125%
2024 Credit Facility | Line of Credit | Revolving Credit Facility | Interest Benchmark For Relevant Currency | Minimum
Debt Instrument [Line Items]
Basis spread on variable rate			0.70%
2024 Credit Facility | Line of Credit | Revolving Credit Facility | Interest Benchmark For Relevant Currency | Maximum
Debt Instrument [Line Items]
Basis spread on variable rate			1.125%
2024 Credit Facility | Line of Credit | Swingline Loans
Debt Instrument [Line Items]
Line of credit, maximum borrowing capacity			$ 500,000,000
2024 Credit Facility | Line of Credit | Letter of Credit
Debt Instrument [Line Items]
Line of credit, maximum borrowing capacity			$ 250,000,000
Secured Revolving Credit Facility, 2019 | Line of Credit | Revolving Credit Facility | Subsidiary
Debt Instrument [Line Items]
Interest paid							5,000,000	5,000,000
Line of credit, maximum borrowing capacity	$ 500,000,000
Line of credit, current borrowing capacity	300,000,000
Line of credit, remaining borrowing capacity	$ 200,000,000
Secured revolving credit facilities							$ 370,000,000
Interest rate at period end (in percent)							6.25%
Secured Revolving Credit Facility, 2019 | Line of Credit | Revolving Credit Facility | Subsidiary | Asset Pledged as Collateral
Debt Instrument [Line Items]
Secured amount							$ 1,300,000,000
Secured Revolving Credit Facility, 2019 | Line of Credit | Revolving Credit Facility | Minimum | Subsidiary
Debt Instrument [Line Items]
Interest rate on unused portion of line of credit (in percent)	0.25%
Secured Revolving Credit Facility, 2019 | Line of Credit | Revolving Credit Facility | Maximum | Subsidiary
Debt Instrument [Line Items]
Interest rate on unused portion of line of credit (in percent)	0.75%
Secured Revolving Credit Facility, 2019 | Line of Credit | Revolving Credit Facility | Secured Overnight Financing Rate (SOFR) | Subsidiary
Debt Instrument [Line Items]
Basis spread on variable rate	1.25%
Secured Revolving Credit Facility, 2022 | Line of Credit | Revolving Credit Facility | Subsidiary
Debt Instrument [Line Items]
Interest paid							5,000,000	$ 2,000,000
Line of credit, maximum borrowing capacity		$ 500,000,000
Line of credit, current borrowing capacity		300,000,000
Line of credit, remaining borrowing capacity		$ 200,000,000
Secured revolving credit facilities							$ 300,000,000
Interest rate at period end (in percent)							6.20%
Secured Revolving Credit Facility, 2022 | Line of Credit | Revolving Credit Facility | Subsidiary | Asset Pledged as Collateral
Debt Instrument [Line Items]
Secured amount							$ 881,000,000
Secured Revolving Credit Facility, 2022 | Line of Credit | Revolving Credit Facility | Minimum | Subsidiary
Debt Instrument [Line Items]
Interest rate on unused portion of line of credit (in percent)		0.20%
Secured Revolving Credit Facility, 2022 | Line of Credit | Revolving Credit Facility | Maximum | Subsidiary
Debt Instrument [Line Items]
Interest rate on unused portion of line of credit (in percent)		0.40%
Secured Revolving Credit Facility, 2022 | Line of Credit | Revolving Credit Facility | Secured Overnight Financing Rate (SOFR) | Subsidiary
Debt Instrument [Line Items]
Basis spread on variable rate		1.30%
Commercial Paper Program | Line of Credit
Debt Instrument [Line Items]
Commercial paper							$ 0		$ 0
Commercial Paper Program | Line of Credit | Commercial Paper
Debt Instrument [Line Items]
Line of credit, maximum borrowing capacity				$ 1,500,000,000
Debt instrument, term				397 days