Debt - Narrative (Details)						1 Months Ended		6 Months Ended
	Jan. 31, 2025 USD ($)	Jan. 30, 2025 USD ($)	Nov. 01, 2024 USD ($)	Apr. 30, 2024 USD ($)	Feb. 05, 2024 USD ($)	Sep. 30, 2023 USD ($)	Jun. 30, 2020 USD ($)	Jan. 31, 2025 USD ($)	Jan. 31, 2024 USD ($)	Feb. 25, 2025 USD ($)	Feb. 24, 2025 USD ($)	Jul. 31, 2024 USD ($)
Debt Instrument [Line Items]
Net carrying value of debt	$ 6,260,000,000							$ 6,260,000,000				$ 6,038,000,000
Line of Credit | Revolving Credit Facility | Subsequent Event
Debt Instrument [Line Items]
Commercial paper										$ 1,800,000,000
Line of Credit | Revolving Credit Facility | Subsidiary
Debt Instrument [Line Items]
Secured revolving credit facilities	804,000,000							804,000,000				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							1,500,000,000
Interest paid								10,000,000	$ 10,000,000
Redemption price							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							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							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
Short-Term Revolving Credit Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit, maximum borrowing capacity		$ 4,500,000,000
2025 Credit Facility | Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Interest paid								0
Restrictive covenant, ratio of total gross debt to EBIDTA		4.00
Commitment fee, percent		0.10%
2025 Credit Facility | Line of Credit | Revolving Credit Facility | Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate		0.125%
2025 Credit Facility | Line of Credit | Revolving Credit Facility | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Basis spread on variable rate		1.125%
Secured Revolving Credit Facility, 2019 | Line of Credit | Revolving Credit Facility | Subsidiary
Debt Instrument [Line Items]
Interest paid								11,000,000	10,000,000
Line of credit, maximum borrowing capacity	500,000,000							500,000,000
Line of credit, current borrowing capacity	300,000,000							300,000,000
Line of credit, remaining borrowing capacity	200,000,000							200,000,000
Secured revolving credit facilities	$ 395,000,000							$ 395,000,000
Interest rate at period end	5.73%							5.73%
Secured Revolving Credit Facility, 2019 | Line of Credit | Revolving Credit Facility | Subsidiary | Asset Pledged as Collateral
Debt Instrument [Line Items]
Secured amount	$ 1,400,000,000							$ 1,400,000,000
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	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	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								10,000,000	$ 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	$ 300,000,000							$ 300,000,000
Interest rate at period end	5.68%							5.68%
Secured Revolving Credit Facility, 2022 | Line of Credit | Revolving Credit Facility | Subsidiary | Asset Pledged as Collateral
Debt Instrument [Line Items]
Secured amount	$ 930,000,000							$ 930,000,000
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				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				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%
Secured Revolving Credit Facility, 2024 | Line of Credit | Revolving Credit Facility | Subsidiary
Debt Instrument [Line Items]
Line of credit, maximum borrowing capacity			$ 300,000,000
Line of credit, current borrowing capacity			150,000,000
Line of credit, remaining borrowing capacity			$ 150,000,000
Secured revolving credit facilities	$ 109,000,000							$ 109,000,000
Interest rate at period end	5.61%							5.61%
Secured Revolving Credit Facility, 2024 | Line of Credit | Revolving Credit Facility | Subsidiary | Subsequent Event
Debt Instrument [Line Items]
Line of credit, current borrowing capacity										300,000,000
Line of credit, remaining borrowing capacity										0
Secured Revolving Credit Facility, 2024 | Line of Credit | Revolving Credit Facility | Subsidiary | Asset Pledged as Collateral
Debt Instrument [Line Items]
Secured amount	$ 244,000,000							$ 244,000,000
Secured Revolving Credit Facility, 2024 | Line of Credit | Revolving Credit Facility | Minimum | Subsidiary
Debt Instrument [Line Items]
Interest rate on unused portion of line of credit			0.20%
Secured Revolving Credit Facility, 2024 | Line of Credit | Revolving Credit Facility | Maximum | Subsidiary
Debt Instrument [Line Items]
Interest rate on unused portion of line of credit			0.40%
Secured Revolving Credit Facility, 2024 | Line of Credit | Revolving Credit Facility | Secured Overnight Financing Rate (SOFR) | Subsidiary
Debt Instrument [Line Items]
Basis spread on variable rate			1.15%
Commercial Paper Program | Line of Credit
Debt Instrument [Line Items]
Commercial paper	0							0				$ 0
Commercial Paper Program | Line of Credit | Commercial Paper
Debt Instrument [Line Items]
Line of credit, maximum borrowing capacity	$ 1,500,000,000							$ 1,500,000,000
Debt instrument, term								397 days
Commercial Paper Program | Line of Credit | Commercial Paper | Subsequent Event
Debt Instrument [Line Items]
Line of credit, maximum borrowing capacity										$ 2,000,000,000	$ 1,500,000,000