Basis of Presentation and Summary of Significant Accounting Policies Narrative (Details) - USD ($) $ in Millions	Sep. 30, 2025	Jun. 30, 2025
Variable Interest Entity [Line Items]
Total assets	$ 55,228	$ 53,122
Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
Liabilities	620
Total assets	$ 760

Amount of asset recognized for present right to economic benefit.

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Amount of liability recognized for present obligation requiring transfer or otherwise providing economic benefit to others.

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+ Details

- 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.

+ References + Details