XML 114 R93.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Computation of Basic and Diluted Earnings Per Class A and Class B Ordinary Share (Detail) ¥ / shares in Units, $ / shares in Units, ¥ in Millions, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2017 USD ($) $ / shares shares | Dec. 31, 2017 CNY (¥) ¥ / shares shares | Dec. 31, 2016 CNY (¥) ¥ / shares shares | Dec. 31, 2015 CNY (¥) ¥ / shares shares
Numerator |  |  |  |
Allocation of net income attributable to Baidu, Inc. | $ 2,815 | ¥ 18,318 | ¥ 11,075 | ¥ 33,335
Class A Ordinary Shares |  |  |  |
Numerator |  |  |  |
Allocation of net income attributable to Baidu, Inc. | $ 2,226 | ¥ 14,488 | ¥ 8,710 | ¥ 26,183
Denominator |  |  |  |
Denominator used for basic EPS | 27,464,760 | 27,464,760 | 27,263,984 | 27,428,861
Earnings per share - basic | (per share) | $ 81.08 | ¥ 527.51 | ¥ 319.47 | ¥ 954.56
Numerator |  |  |  |
Allocation of net income attributable to Baidu, Inc. for diluted computation | $ 2,230 | ¥ 14,513 | ¥ 8,716 | ¥ 26,206
Reallocation of net income attributable to Baidu, Inc. as a result of conversion of Class B to Class A shares | 585 | 3,805 | 2,359 | 7,129
Numerator for diluted EPS calculation | $ 2,815 | ¥ 18,318 | ¥ 11,075 | ¥ 33,335
Denominator |  |  |  |
Weighted average ordinary shares outstanding | 27,464,760 | 27,464,760 | 27,263,984 | 27,428,861
Conversion of Class B to Class A ordinary shares | 7,260,363 | 7,260,363 | 7,401,254 | 7,492,921
Share-based awards | 227,268 | 227,268 | 91,848 | 112,688
Denominator used for diluted EPS | 34,952,391 | 34,952,391 | 34,757,086 | 35,034,470
Earnings per share - diluted | (per share) | $ 80.55 | ¥ 524.08 | ¥ 318.62 | ¥ 951.49
Class B Ordinary Shares |  |  |  |
Numerator |  |  |  |
Allocation of net income attributable to Baidu, Inc. | $ 589 | ¥ 3,830 | ¥ 2,365 | ¥ 7,152
Denominator |  |  |  |
Denominator used for basic EPS | 7,260,363 | 7,260,363 | 7,401,254 | 7,492,921
Earnings per share - basic | (per share) | $ 81.08 | ¥ 527.51 | ¥ 319.47 | ¥ 954.56
Numerator |  |  |  |
Allocation of net income attributable to Baidu, Inc. for diluted computation | $ 585 | ¥ 3,805 | ¥ 2,359 | ¥ 7,129
Reallocation of net income attributable to Baidu, Inc. as a result of conversion of Class B to Class A shares | 0 | 0 | 0 | 0
Numerator for diluted EPS calculation | $ 585 | ¥ 3,805 | ¥ 2,359 | ¥ 7,129
Denominator |  |  |  |
Weighted average ordinary shares outstanding | 7,260,363 | 7,260,363 | 7,401,254 | 7,492,921
Conversion of Class B to Class A ordinary shares | 0 | 0 | 0 | 0
Share-based awards | 0 | 0 | 0 | 0
Denominator used for diluted EPS | 7,260,363 | 7,260,363 | 7,401,254 | 7,492,921
Earnings per share - diluted | (per share) | $ 80.55 | ¥ 524.08 | ¥ 318.62 | ¥ 951.49
American Depositary Shares | Class A Ordinary Shares |  |  |  |
Denominator |  |  |  |
Denominator used for basic EPS | 274,647,600 | 274,647,600 | 272,639,840 | 274,288,610
Earnings per share - basic | (per share) | $ 8.11 | ¥ 52.75 | ¥ 31.95 | ¥ 95.46
Denominator |  |  |  |
Weighted average ordinary shares outstanding | 274,647,600 | 274,647,600 | 272,639,840 | 274,288,610
Denominator used for diluted EPS | 349,523,910 | 349,523,910 | 347,570,860 | 350,344,700
Earnings per share - diluted | (per share) | $ 8.06 | ¥ 52.41 | ¥ 31.86 | ¥ 95.15

X
- Definition Incremental Common Shares Attributable To Conversion Of Class Of Securities + References No definition available. + Details
Name: | bidu_IncrementalCommonSharesAttributableToConversionOfClassOfSecurities
Namespace Prefix: | bidu_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of increase (decrease) to net income used for calculating diluted earnings per share (EPS), resulting from the assumed exercise of dilutive convertible securities excluding adjustments related to ESOP convertible preferred stock, stock options, and restrictive stock units. + References No definition available. + Details
Name: | us-gaap_DilutiveSecuritiesEffectOnBasicEarningsPerShareOther
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=96948231&loc=d3e4984-109258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=96947427&loc=d3e1252-109256 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(21)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(23)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
Name: | us-gaap_EarningsPerShareBasic
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=96947427&loc=d3e1252-109256 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(21)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(23)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
Name: | us-gaap_EarningsPerShareDiluted
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 28A -URI http://asc.fasb.org/extlink&oid=96947427&loc=d3e1500-109256 + Details
Name: | us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=96947427&loc=d3e1377-109256 + Details
Name: | us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_NetIncomeLossAvailableToCommonStockholdersBasicAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities, and addition from assumption of issuance of common shares for dilutive potential common shares; of income (loss) available to common shareholders. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=96947427&loc=d3e1505-109256 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=96947427&loc=d3e1377-109256 + Details
Name: | us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_NetIncomeLossAvailableToCommonStockholdersDilutedAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The earnings that is allocated to common stock and participating securities to the extent that each security may share in earnings as if all of the earnings for the period had been distributed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 65 -URI http://asc.fasb.org/extlink&oid=96947427&loc=d3e2793-109256 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 60A -URI http://asc.fasb.org/extlink&oid=96947427&loc=SL5780132-109256 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 66 -URI http://asc.fasb.org/extlink&oid=96947427&loc=d3e2814-109256 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 60 -URI http://asc.fasb.org/extlink&oid=96947427&loc=d3e2740-109256 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 60B -URI http://asc.fasb.org/extlink&oid=96947427&loc=SL5780133-109256 + Details
Name: | us-gaap_UndistributedEarnings
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=96947427&loc=d3e1505-109256 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
Name: | us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=96947427&loc=d3e1448-109256 + Details
Name: | us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassBMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bidu_EarningsPerShareAxis=bidu_AmericanDepositaryShareMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |