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Financial Instruments (Details) ¥ in Thousands, $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 CNY (¥) | Dec. 31, 2019 CNY (¥) | Dec. 31, 2020 USD ($)
Fair Value Measurements |  |  |
Time deposits-short term | ¥ 71,079,327 | ¥ 53,487,075 | $ 10,893,383
Time deposits-long term | 6,630,000 | 2,360,000 | 1,016,092
Equity investments with readily determinable fair values | 3,743,590 | 3,551,545 |
Short-term investments | 13,273,026 | 15,312,595 | $ 2,034,180
Total | 94,725,943 | 74,711,215 |
Quoted Prices in Active Market for Identical Assets (Level 1) |  |  |
Fair Value Measurements |  |  |
Time deposits-short term | 71,079,327 | 53,487,075 |
Time deposits-long term | 6,630,000 | 2,360,000 |
Equity investments with readily determinable fair values | 3,743,590 | 3,551,545 |
Total | 81,452,917 | 59,398,620 |
Significant Other Observable Inputs (Level 2) |  |  |
Fair Value Measurements |  |  |
Short-term investments | 13,273,026 | 15,312,595 |
Total | 13,273,026 | 15,312,595 |
Significant Unobservable Inputs (Level 3) | Certain of equity investments |  |  |
Fair Value Measurements |  |  |
Impairment charges of certain equity investments without determinable fair value | ¥ 55,600 | ¥ 168,400 |

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