XML 149 R73.htm IDEA: XBRL DOCUMENT
v3.20.1

Goodwill and Intangible Assets - Additional Information (Detail) ¥ in Millions, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 CNY (¥) Unit | Dec. 31, 2019 USD ($) Unit | Dec. 31, 2018 CNY (¥) Unit | Dec. 31, 2017 CNY (¥)
Amortization Of Intangible Assets Disclosure [Abstract] |  |  |  |
Number of reporting units the company | 2 | 2 | 2 |
Impairment loss on intangible assets excluding licensed copyrights | ¥ 406 | $ 58 | ¥ 5 | ¥ 139
Amortization expense of intangible assets and licensed copyrights | ¥ 13,500 | $ 1,900 | ¥ 12,500 | ¥ 7,900

X
- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production, including long-term licensed copyright) and short-term licensed copyrights in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References No definition available. + Details
Name: | bidu_AmortizationOfIntangibleAssetsAndLicensedCopyrights
Namespace Prefix: | bidu_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amortization Of Intangible Assets Disclosure [Abstract] + References No definition available. + Details
Name: | bidu_AmortizationOfIntangibleAssetsDisclosureAbstract
Namespace Prefix: | bidu_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill and long-term licensed copyrights) to fair value. + References No definition available. + Details
Name: | bidu_ImpairmentOfIntangibleAssetsExcludingGoodwillAndLicensedCopyrights
Namespace Prefix: | bidu_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The number of reporting units the company split Baidu reporting unit into. + References No definition available. + Details
Name: | bidu_NumberOfReportingUnitsCompanySplitBaiduReportingUnitInto
Namespace Prefix: | bidu_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration