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Related Party Transactions (Parenthetical) (Detail) ¥ in Millions, $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 CNY (¥) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 CNY (¥)
Related Party Transaction [Line Items] |  |  |
Deferred revenue, remaining performance obligation, expected timing of satisfaction | 7 years | 7 years |
Business Combination, Consideration Transferred | ¥ 1,200 | $ 168 |
Du Xiaoman |  |  |
Related Party Transaction [Line Items] |  |  |
Long-term interest-bearing loan receivable | ¥ |  |  | ¥ 500
Long term due date, Start | Nov. 13, 2021 | Nov. 13, 2021 |
Long term due date, End | Aug. 24, 2023 | Aug. 24, 2023 |
Du Xiaoman | November Thirteen Two Thousand Twenty One Long Term Loans [Member] | Previously Reported [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Long term loans, interest rate |  |  | 3.78%
Du Xiaoman | November Thirteen Two Thousand Twenty One Long Term Loans [Member] | Currently Stated [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Long term loans, interest rate | 0.00% | 0.00% |
Du Xiaoman | August Twenty Four Two Thousand Twenty Three Long Term Loan [Member] | Previously Reported [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Long term loans, interest rate |  |  | 4.28%
Du Xiaoman | August Twenty Four Two Thousand Twenty Three Long Term Loan [Member] | Currently Stated [Member] |  |  |
Related Party Transaction [Line Items] |  |  |
Long term loans, interest rate | 0.00% | 0.00% |
Service Provided |  |  |
Related Party Transaction [Line Items] |  |  |
Long term loans, interest rate | 5.00% | 5.00% |
Investee A |  |  |
Related Party Transaction [Line Items] |  |  |
Business Combination, Consideration Transferred | $ |  | $ 300 |
Minimum | Service Provided | Du Xiaoman |  |  |
Related Party Transaction [Line Items] |  |  |
Long term loans, interest rate | 0.00% | 0.00% | 4.28%
Maximum | Service Provided | Du Xiaoman |  |  |
Related Party Transaction [Line Items] |  |  |
Long term loans, interest rate | 0.50% | 0.50% | 5.00%

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