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No definition available.

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- Definition

Vesting Period in years for Shares

+ References

No definition available.

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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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- Definition

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Percentage of vesting of award under share-based payment arrangement.

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- Definition

Intrinsic value of vested award under share-based payment arrangement. Excludes share and unit options.

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Share-Based Compensation (Additional Data Related to Performance Share Unit Activity) (Details)	3 Months Ended	12 Months Ended
	Jun. 30, 2026 USD ($)	Jun. 30, 2026 USD ($) vestingPeriods	Jun. 30, 2025 USD ($)	Jun. 30, 2024 USD ($)
Performance Share Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation cost, net of estimated forfeitures, related to nonvested performance share units not yet recognized, pre-tax	$ 49,000,000	$ 49,000,000	$ 47,000,000	$ 46,000,000
Weighted-average period over which performance share unit cost is expected to be recognized (in years)		2 years	2 years	2 years
Total fair value of shares vested during the year		$ 108,000,000	$ 49,000,000	$ 20,000,000
Vesting Period in years for Shares \| vestingPeriods		3
Performance Share Units \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Target performance goal (as a percent)		0.00%
GIA Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total compensation cost, net of estimated forfeitures, related to nonvested performance share units not yet recognized, pre-tax	$ 407,000,000	$ 407,000,000
Weighted-average period over which performance share unit cost is expected to be recognized (in years)	2 years	4 years
Share-Based Payment Arrangement, Income, Decrease in Fair Value of Liabilities		$ (13,000,000)
The Specialty Alliance Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested		$ 258,000,000	$ 82,000,000