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Fair Value of Financial Instruments - Additional Information (Details) - USD ($) | 3 Months Ended | 9 Months Ended |  |  |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Mar. 31, 2025 | Mar. 31, 2024 | Sep. 24, 2024 | Sep. 01, 2024 | Aug. 31, 2024 | Jun. 30, 2024 | Mar. 20, 2023 | Feb. 28, 2023 | Jun. 30, 2022 | Feb. 23, 2022 | Nov. 24, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative asset, statement of financial position | Prepaid and other current assets |  | Prepaid and other current assets |  |  |  |  | Prepaid and other current assets |  |  |  |  |
Restricted cash | $ 736,000,000 |  | $ 736,000,000 |  |  |  |  | $ 864,000,000 |  |  |  |  |
Realized gains on derivatives | 0 | $ 12,000,000 | 16,000,000 | $ 9,000,000 |  |  |  |  |  |  |  |  |
Silicon Carbide |  |  |  |  |  |  |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted cash | 733,000,000 |  | 733,000,000 |  |  |  |  | 858,000,000 |  |  |  |  |
Other Entities |  |  |  |  |  |  |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted cash | 3,000,000 |  | 3,000,000 |  |  |  |  | 5,000,000 |  |  |  |  |
Interest Rate Swap |  |  |  |  |  |  |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  |  |  |  |  |  |  | $ 825,000,000 | $ 825,000,000 |  | $ 1,075,000,000
Fixed interest rate |  |  |  |  | 0.10% |  |  |  |  |  |  |  | 1.52%
Floor interest rate |  |  |  |  |  |  |  |  | 1.42% |  |  |  | 0.00%
Derivative asset |  |  |  |  |  |  |  | 8,000,000 |  |  |  |  |
Interest Rate Cap |  |  |  |  |  |  |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  |  |  | $ 1,500,000,000 | $ 500,000,000 |  |  |  |  |  |
Fixed interest rate |  |  |  |  |  |  |  |  |  |  |  | 0.853% |
Derivative asset | $ 23,000,000 |  | $ 23,000,000 |  |  |  |  | $ 50,000,000 |  |  |  |  |
SOFR percentage of derivative |  |  |  |  |  |  |  |  |  |  |  | 1.92% |
Interest Rate Cap | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  |  |  |  |  |  |  |  |  | $ 500,000,000 |
Interest Rate Cap | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount |  |  |  |  |  |  |  |  |  |  |  | $ 1,500,000,000 |

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