Fair Value - Liabilities Measured on Recurring Basis (Detail) - Redeemable Noncontrolling Interests - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2023 |
Dec. 31, 2022 |
|
| Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] | ||||
| Beginning of period | $ (228) | $ (193) | $ (213) | $ (188) |
| Net loss | 4 | 5 | 4 | 10 |
| Accretion and other | (19) | (8) | (34) | (18) |
| End of period | $ (243) | $ (196) | $ (243) | $ (196) |