Long-Term Time Deposits and Held-to-Maturity Investments - Summary of Classification of Long Term Time Deposits and Held-to-Maturity Investments (Detail) - Long Term Time Deposits And Held To Maturity Investments [Member] - Corporate Debt Securities ¥ in Millions, $ in Millions |
Dec. 31, 2025
CNY (¥)
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Dec. 31, 2025
USD ($)
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Dec. 31, 2024
CNY (¥)
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| Schedule of Held-to-maturity Securities [Line Items] | |||
| Cost or amortized cost less allowance for credit losses | ¥ 123,862 | ¥ 98,535 | |
| Gross unrecognized holding gains | 1,411 | 1,290 | |
| Gross unrecognized holding losses | (225) | (756) | |
| Fair value | ¥ 125,048 | $ 17,882 | ¥ 99,069 |
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- Definition Amount of accumulated unrecognized gain on investment in debt security measured at amortized cost (held-to-maturity). Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
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- Definition Amount of accumulated unrealized loss on investment in debt security measured at amortized cost (held-to-maturity). Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
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- Definition Fair value of investment in debt security measured at amortized cost (held-to-maturity). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity), classified as noncurrent. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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