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Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Change in Estimated Fair Value

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Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Vesting

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Share-Based Payment Arrangement, Acquisition Related Expense

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Share-Based Payment Arrangement, Non-Acquisition-Related Expense

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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- Definition

Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments.

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- Definition

Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Amount of purchases of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of settlements of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

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Fair Value Measurements Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Liabilities:
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases	$ 0.0	$ 20.0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Vesting	46.0	53.0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Change in Estimated Fair Value	34.0	10.0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements	(4.0)	(16.0)
Total share-based compensation	29.0	30.0
The Specialty Allianec Units
Liabilities:
Total share-based compensation	80.0	63.0
Share-Based Payment Arrangement, Acquisition Related Expense	78.0	61.0
Share-Based Payment Arrangement, Non-Acquisition-Related Expense	$ 2.0	2.0
Level 3
Liabilities:
Discount Rate, fair value inputs	8.00%
Recurring
Assets:
Other investments	$ 112.0		$ 118.0
Forward Contract	(107.0)		(32.0)
Liabilities:
Equity Securities, FV-NI	1,353.0	$ 910.0	1,277.0	$ 843.0
Recurring \| Level 1
Assets:
Cash equivalents	2,704.0		2,299.0
Other investments	112.0		118.0
Forward Contract	0.0		0.0
Liabilities:
Equity Securities, FV-NI	0.0		0.0
Recurring \| Level 2
Assets:
Cash equivalents	0.0		0.0
Other investments	0.0		0.0
Forward Contract	(107.0)		(32.0)
Liabilities:
Equity Securities, FV-NI	0.0		0.0
Recurring \| Level 3
Assets:
Cash equivalents	0.0		0.0
Other investments	0.0		0.0
Forward Contract	0.0		0.0
Liabilities:
Equity Securities, FV-NI	1,353.0		1,277.0
Recurring \| Fair Value, Inputs, Level 1, 2 and 3
Assets:
Cash equivalents	$ 2,704.0		$ 2,299.0