Summarized Financial Information (Detail) ¥ in Millions, $ in Millions |
12 Months Ended | ||||||||
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Dec. 31, 2021
CNY (¥)
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Dec. 31, 2021
USD ($)
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Dec. 31, 2020
CNY (¥)
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Dec. 31, 2019
CNY (¥)
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Dec. 31, 2021
USD ($)
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| Schedule of Equity Method Investments [Line Items] | |||||||||
| Current assets | ¥ 213,315 | ¥ 183,342 | $ 33,474 | ||||||
| Non-current assets | 166,719 | 149,366 | 26,162 | ||||||
| Current liabilities | 74,488 | 68,385 | 11,689 | ||||||
| Non-current liabilities | 81,594 | 72,480 | 12,803 | ||||||
| Noncontrolling interests | 5,345 | 6,045 | 839 | ||||||
| Ctrip.com International, Ltd | |||||||||
| Schedule of Equity Method Investments [Line Items] | |||||||||
| Current assets | 76,596 | 65,782 | 12,020 | ||||||
| Non-current assets | 124,268 | 132,417 | 19,500 | ||||||
| Current liabilities | 73,517 | 61,360 | 11,536 | ||||||
| Non-current liabilities | 16,418 | 36,558 | 2,576 | ||||||
| Noncontrolling interests | 924 | 1,566 | 145 | ||||||
| Total revenues | [1] | 20,313 | $ 3,188 | 21,704 | ¥ 34,958 | ||||
| Gross profit | [1] | 15,916 | 2,498 | 16,838 | 27,627 | ||||
| Income (loss) from operations | [1] | (723) | (113) | (827) | 4,271 | ||||
| Net income (loss) | [1] | 1,198 | 188 | (2,236) | 3,764 | ||||
| Net income (loss) attributable to the investees | [1] | 1,288 | 202 | (2,243) | 3,813 | ||||
| Other Equity Method Investees Excluding Ctrip,com | |||||||||
| Schedule of Equity Method Investments [Line Items] | |||||||||
| Current assets | 125,266 | 96,713 | 19,657 | ||||||
| Non-current assets | 18,512 | 15,094 | 2,905 | ||||||
| Current liabilities | 90,744 | 73,842 | 14,240 | ||||||
| Non-current liabilities | 9,218 | 5,545 | 1,447 | ||||||
| Noncontrolling interests | 1,662 | 1,577 | $ 261 | ||||||
| Total revenues | [2] | 21,380 | 3,355 | 13,981 | 12,598 | ||||
| Gross profit | [2] | 7,624 | 1,196 | 5,083 | 6,247 | ||||
| Income (loss) from operations | [2] | 1,238 | 194 | (1,282) | (680) | ||||
| Net income (loss) | [2] | 2,065 | 324 | (832) | (638) | ||||
| Net income (loss) attributable to the investees | [2] | ¥ 2,040 | $ 320 | ¥ (891) | ¥ (933) | ||||
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- Definition The amount of net income (loss) attributable to the investees reported by an equity method investment of the entity. No definition available.
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- Definition Equity method investment summarized net income loss. No definition available.
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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold or consumed after one year or beyond the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount after tax of income (loss) from continuing operations including portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of obligation due after one year or beyond the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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. No definition available.
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