Additional Financial Information - Components of Other, Net (Detail) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2023 |
Dec. 31, 2022 |
|
| Organization, Consolidation and Presentation of Financial Statements [Abstract] | ||||
| Net (losses) gains on investments in equity securities | $ (22) | $ 114 | $ (193) | $ 135 |
| U.K. Newspaper Matters Indemnity | (7) | (21) | (12) | (82) |
| Other | (17) | (20) | (7) | (56) |
| Total other, net | $ (46) | $ 73 | $ (212) | $ (3) |