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Fair Value Disclosure and Measurement (Detail) ¥ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2016 USD ($) | Dec. 31, 2016 CNY (¥) | Dec. 31, 2015 CNY (¥) | Dec. 31, 2014 CNY (¥) | Dec. 31, 2016 CNY (¥)
Fair value disclosure |  |  |  |  |
Long-term notes payable | $ 4,789,365,000 |  | ¥ 30,714,586 |  | ¥ 33,252,561
Fair value measurement |  |  |  |  |
Total assets measured at fair value | 5,420,914,000 |  | 21,303,367 |  | 37,637,407
Long-term investments, losses | (35,330,000) | ¥ (245,330) | (116,980) | ¥ (93,420) |
Intangible assets, losses | (118,380) | (820) | 0 | (1,630) |
Total losses | (60,694,000) | (421,395) | (116,978) | ¥ (95,049) |
Short-term Investments | Fixed-rate Investments |  |  |  |  |
Fair value disclosure |  |  |  |  |
Held-to-maturity investments | 6,030,339,000 |  | 37,134,096 |  | 41,868,641
Fair value measurement |  |  |  |  |
Available-for-sale investments, current | 2,070,842,000 |  | 6,958,399 |  | 14,377,856
Short-term Investments | Adjustable-rate Debt Investments |  |  |  |  |
Fair value measurement |  |  |  |  |
Available-for-sale investments, current | 2,158,550,000 |  | 13,325,385 |  | 14,986,816
Short-term Investments | Equity Investments |  |  |  |  |
Fair value measurement |  |  |  |  |
Available-for-sale investments, current | 4,146,000 |  | 742,618 |  | 28,787
Other Long-term Investments | Fixed-rate Investments |  |  |  |  |
Fair value disclosure |  |  |  |  |
Held-to-maturity investments |  |  | 1,806,446 |  |
Other Long-term Investments | Equity Investments |  |  |  |  |
Fair value measurement |  |  |  |  |
Available-for-sale investments, noncurrent | 71,513,000 |  | 276,965 |  | 496,512
Time Deposits |  |  |  |  |
Fair value disclosure |  |  |  |  |
Cash equivalents | 241,131,000 |  | 678,000 |  | 1,674,172
Money Market Fund |  |  |  |  |
Fair value disclosure |  |  |  |  |
Cash equivalents | 636,498,000 |  | 608,353 |  | 4,419,206
Fair Value, Inputs, Level 1 |  |  |  |  |
Fair value disclosure |  |  |  |  |
Long-term notes payable |  |  | 30,714,586 |  | 33,252,561
Fair value measurement |  |  |  |  |
Total assets measured at fair value |  |  | 1,019,583 |  | 525,299
Fair Value, Inputs, Level 1 | Money Market Fund |  |  |  |  |
Fair value disclosure |  |  |  |  |
Cash equivalents |  |  | 608,353 |  | 4,419,206
Fair Value, Inputs, Level 2 |  |  |  |  |
Fair value measurement |  |  |  |  |
Total assets measured at fair value |  |  | 20,283,784 |  | 37,112,108
Fair Value, Inputs, Level 2 | Short-term Investments | Fixed-rate Investments |  |  |  |  |
Fair value disclosure |  |  |  |  |
Held-to-maturity investments |  |  | 37,134,096 |  | 41,868,641
Fair Value, Inputs, Level 2 | Other Long-term Investments | Fixed-rate Investments |  |  |  |  |
Fair value disclosure |  |  |  |  |
Held-to-maturity investments |  |  | 1,806,446 |  |
Fair Value, Inputs, Level 2 | Time Deposits |  |  |  |  |
Fair value disclosure |  |  |  |  |
Cash equivalents |  |  | 678,000 |  | 1,674,172
Fair Value, Inputs, Level 3 |  |  |  |  |
Fair value measurement |  |  |  |  |
Total assets measured at fair value |  |  | 0 |  | 0
Fair Value, Measurements, Nonrecurring |  |  |  |  |
Fair value measurement |  |  |  |  |
Long-term investments | 0 |  | 0 |  | 0
Intangible assets | 0 |  |  |  | 0
Long-term investments, losses | (21,712,000) | (150,745) | (116,978) |  |
Intangible assets, losses | (118,000) | (822) |  |  |
Total losses | (21,830,000) | ¥ (151,567) | (116,978) |  |
Fair Value, Measurements, Nonrecurring | Fair Value, Inputs, Level 1 |  |  |  |  |
Fair value measurement |  |  |  |  |
Long-term investments |  |  | 0 |  | 0
Intangible assets |  |  |  |  | 0
Fair Value, Measurements, Nonrecurring | Fair Value, Inputs, Level 2 |  |  |  |  |
Fair value measurement |  |  |  |  |
Long-term investments |  |  |  |  | 0
Intangible assets |  |  |  |  | 0
Fair Value, Measurements, Nonrecurring | Fair Value, Inputs, Level 3 |  |  |  |  |
Fair value measurement |  |  |  |  |
Long-term investments |  |  | 0 |  | 0
Intangible assets |  |  |  |  | 0
Fair Value, Measurements, Recurring | Short-term Investments |  |  |  |  |
Fair value measurement |  |  |  |  |
Trading securities | 1,115,863,000 |  |  |  | 7,747,436
Fair Value, Measurements, Recurring | Short-term Investments | Fixed-rate Investments |  |  |  |  |
Fair value measurement |  |  |  |  |
Available-for-sale investments, current | 2,070,842,000 |  | 6,958,399 |  | 14,377,856
Fair Value, Measurements, Recurring | Short-term Investments | Adjustable-rate Debt Investments |  |  |  |  |
Fair value measurement |  |  |  |  |
Available-for-sale investments, current | 2,158,550,000 |  | 13,325,385 |  | 14,986,816
Fair Value, Measurements, Recurring | Short-term Investments | Equity Investments |  |  |  |  |
Fair value measurement |  |  |  |  |
Available-for-sale investments, current | 4,146,000 |  | 742,618 |  | 28,787
Fair Value, Measurements, Recurring | Other Long-term Investments | Equity Investments |  |  |  |  |
Fair value measurement |  |  |  |  |
Available-for-sale investments, noncurrent | $ 71,513,000 |  | 276,965 |  | 496,512
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 | Short-term Investments | Equity Investments |  |  |  |  |
Fair value measurement |  |  |  |  |
Available-for-sale investments, current |  |  | 742,618 |  | 28,787
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1 | Other Long-term Investments | Equity Investments |  |  |  |  |
Fair value measurement |  |  |  |  |
Available-for-sale investments, noncurrent |  |  | 276,965 |  | 496,512
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Short-term Investments |  |  |  |  |
Fair value measurement |  |  |  |  |
Trading securities |  |  |  |  | 7,747,436
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Short-term Investments | Fixed-rate Investments |  |  |  |  |
Fair value measurement |  |  |  |  |
Available-for-sale investments, current |  |  | 6,958,399 |  | 14,377,856
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 | Short-term Investments | Adjustable-rate Debt Investments |  |  |  |  |
Fair value measurement |  |  |  |  |
Available-for-sale investments, current |  |  | ¥ 13,325,385 |  | ¥ 14,986,816

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- Definition Amount of investment in debt and equity securities categorized neither as trading securities nor held-to-maturity securities and intended be sold or mature one year or operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=65884222&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=66010992&loc=d3e26626-111562 + Details
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- Definition Investments in debt and equity securities which are categorized neither as held-to-maturity nor trading and which are intended to be sold or mature more than one year from the balance sheet date or operating cycle, if longer. Such securities are reported at fair value; unrealized gains (losses) related to Available-for-sale Securities are excluded from earnings and reported in a separate component of shareholders' equity (other comprehensive income), unless the Available-for-sale security is designated as a hedge or is determined to have had an other than temporary decline in fair value below its amortized cost basis. All or a portion of the unrealized holding gain (loss) of an Available-for-sale security that is designated as being hedged in a fair value hedge is recognized in earnings during the period of the hedge, as are other than temporary declines in fair value below the cost basis for investments in equity securities and debt securities that an entity intends to sell or it is more likely than not that it will be required to sell before the recovery of its amortized cost basis. Other than temporary declines in fair value below the cost basis for debt securities categorized as Available-for-sale that an entity does not intend to sell and for which it is not more likely than not that the entity will be required to sell before the recovery of its amortized cost basis are bifurcated into credit losses and losses related to all other factors. Other than temporary declines in fair value below cost basis related to credit losses are recognized in earnings, and losses related to all other factors are recognized in other comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Available-for-Sale Securities -URI http://asc.fasb.org/extlink&oid=6505594 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=66010992&loc=d3e26626-111562 + Details
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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 + Details
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- Definition Fair value of investments in debt securities classified as held-to-maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27232-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27232-111563 + Details
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- Definition The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16373-109275 + Details
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- Definition Fair value portion of assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19190-110258 + Details
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- Definition Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(12)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Trading Securities -URI http://asc.fasb.org/extlink&oid=6526789 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(5)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(6)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 35 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=27723805&loc=d3e24584-111560 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=65884222&loc=d3e22054-111558 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(1)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Available-for-Sale Securities -URI http://asc.fasb.org/extlink&oid=6505594 + Details
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