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v3.25.2

Debt (Detail) ¥ in Millions, $ in Millions | Jun. 30, 2025 USD ($) | Jun. 30, 2025 CNY (¥) | Apr. 30, 2025 USD ($) | Mar. 31, 2025 USD ($)
--- | --- | --- | --- | ---
Group Syndicated Credit Facility |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Line of Credit Facility, Current Borrowing Capacity | $ 3,000 |  |  |
INA Senior Notes Due March 2025 | Senior Notes [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt Instrument, Face Amount |  |  |  | $ 800
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 3.15%
Commercial Paper Program | Commercial Paper |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Line of Credit Facility, Current Borrowing Capacity | $ 2,000 |  |  |
Senior Notes [Member] | INA CNH Term Loan Due April 2028 [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt Instrument, Face Amount |  | ¥ 1,800 | $ 249 |
Debt Instrument, Interest Rate, Stated Percentage | 2.85% | 2.85% |  |

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