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Summarized Financial Information (Detail) - Ctrip.com International, Ltd ¥ in Millions, $ in Millions | 12 Months Ended |
--- | --- | ---
Sep. 30, 2017 USD ($) | Sep. 30, 2017 CNY (¥) | Sep. 30, 2016 CNY (¥) | Sep. 30, 2015 CNY (¥) | Sep. 30, 2017 CNY (¥)
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Current assets | [1] | $ 9,505 |  | ¥ 52,222 |  | ¥ 63,241
Non-current assets | [1] | 15,028 |  | 83,336 |  | 99,986
Current liabilities | [1] | 6,309 |  | 33,174 |  | 41,972
Non-current liabilities | [1] | 5,650 |  | 31,128 |  | 37,590
Noncontrolling interests | [1] | 291 |  | 3,678 |  | ¥ 1,935
Total revenues | [1] | 3,955 | ¥ 25,731 | 17,642 | ¥ 10,485 |
Gross profit | [1] | 3,185 | 20,725 | 12,669 | 7,073 |
(Loss) income from operations | [1] | 404 | 2,626 | (1,681) | (115) |
Net income (loss) | [1] | 351 | 2,282 | (2,177) | 2,053 |
Net income (loss) attributable to the investees | [1] | $ 351 | ¥ 2,284 | ¥ (2,000) | ¥ 2,208 |
[1] | The Company adopted a one-quarter lag in reporting its share of equity income in Ctrip

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