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Debt - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
Debt - Narrative (Details) - USD ($) $ in Millions	Sep. 30, 2026	Mar. 15, 2026	Sep. 15, 2025	Jan. 15, 2025
Commercial Paper
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 5,000
Senior Unsecured Notes \| 1.500% Senior Unsecured Notes Due 2026
Debt Instrument [Line Items]
Debt instrument interest rate		1.50%
Debt instruments, repurchased face amount		$ 750
Senior Unsecured Notes \| 2.375% Senior Unsecured Notes Due 2025
Debt Instrument [Line Items]
Debt instrument interest rate				2.375%
Debt instruments, repurchased face amount				$ 1,250
Senior Unsecured Notes \| 4.900% Senior Unsecured Notes Due 2026
Debt Instrument [Line Items]
Debt instrument interest rate			4.90%
Debt instruments, repurchased face amount			$ 500
Senior Unsecured Notes \| 5.350% Senior Unsecured Notes Due 2025
Debt Instrument [Line Items]
Debt instrument interest rate			5.35%
Debt instruments, repurchased face amount			$ 400
Term Loan \| 5-Year Facility \| Line of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 5,000
Senior revolving credit facility term	5 years