Produced Content, Net - Summary of Estimated Future Amortization Expenses For Product Content (Detail) - Dec. 31, 2024 ¥ in Millions, $ in Millions	CNY (¥)	USD ($)
Schedule Of Estimated Future Amortization Expenses For Licensed Copyrights [Abstract]
Within 1 year	¥ 1,586	$ 217
Between 1 and 2 years	849	116
Between 2 and 3 years	¥ 655	$ 90

Expected amortization existing produced content anticipated to be amortized between two and three years.

No definition available.

Name:	bidu_ExpectedAmortizationExistingProducedContentAnticipatedToBeAmortizedBetweenTwoAndThreeYears
Namespace Prefix:	bidu_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant