6-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16 UNDER

THE SECURITIES EXCHANGE ACT OF 1934

For the month of November 2018

Commission File Number: 000-51469

BAIDU, INC.

Baidu Campus

No. 10 Shangdi 10th Street

Haidian District, Beijing 100085

The People’s Republic of China

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F  ☒            Form 40-F  ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):  ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):  ☐

EXPLANATORY NOTE

Exhibit 99.1 to this Current Report on Form 6-K and the interactive data files attached as exhibits hereto are hereby incorporated by reference into the Registration Statement on Form F-3 of Baidu, Inc. (File No. 333-218972) and shall be a part thereof from the date on which this Current Report is furnished, to the extent not superseded by documents or reports subsequently filed or furnished.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

BAIDU, INC.
By	:	/s/ Herman Yu
Name	:	Herman Yu
Title:	:	Chief Financial Officer

Date: November 7, 2018

EXHIBIT INDEX

Exhibit No.	Description
99.1	Unaudited Condensed Consolidated Interim Financial Statements
101.INS	XBRL Taxonomy Instance Document
101.SCH	XBRL Taxonomy Extension Schema Document
101.CAL	XBRL Taxonomy Calculation Linkbase Document
101.DEF	XBRL Taxonomy Extension Definition Linkbase Document
101.LAB	XBRL Taxonomy Label Linkbase Document
101.PRE	XBRL Taxonomy Presentation Linkbase Document

EX-99.1

Exhibit 99.1

BAIDU, INC.

UNAUDITED INTERIM CONDENSED CONSOLIDATED BALANCE SHEETS

(Amounts in millions of Renminbi (“RMB”), and in millions of U.S. Dollars (“US$”), except for number of shares and per share data)

	As of December 31, 2017		As of September 30, 2018		As of September 30, 2018
	RMB		RMB		US$
ASSETS
Current assets:
Cash and cash equivalents		11,084		15,775		2,297
Restricted cash		252		15		2
Short-term investments		89,381		88,716		12,917
Other invested securities		18,350		—		—
Accounts receivable, net of allowance of RMB316 and RMB665 (US$97) as of December 31, 2017 and September 30, 2018, respectively		4,571		5,455		794
Loans and interest receivable, current portion net of allowances of RMB660 and nil as of December 31, 2017 and September 30, 2018, respectively		23,938		—		—
Amounts due from related parties		168		23,321		3,396
Other current assets, net		3,425		6,700		976
Total current assets		151,169		139,982		20,382
Non-current assets:
Fixed assets, net		12,475		16,197		2,358
Intangible assets, net		5,467		8,732		1,271
Goodwill		15,806		17,051		2,483
Long-term investments, net		56,283		80,589		11,734
Deferred tax assets, net		1,532		1,049		153
Loans and interest receivable, non current portion net of allowances of RMB104 as of December 31, 2017 and nil as of December 31, 2017 and September 30, 2018, respectively		3,467		—		—
Amounts due from related parties		9		1,994		290
Other non-current assets		5,520		9,742		1,418
Total non-current assets		100,559		135,354		19,707
Total assets		251,728		275,336		40,089
LIABILITIES AND EQUITY
Current liabilities (including amounts of the consolidated VIEs without recourse to the primary beneficiaries of RMB18,775 and RMB23,008 (US$3,351) as of December 31, 2017 and September 30, 2018):
Short-term loans		1,244		1,173		171
Accounts payable and accrued liabilities		27,523		33,743		4,914
Amounts due to the third-party investors		38,486		—		—
Customer advances and deposits		6,785		7,599		1,106
Deferred revenue		788		1,840		268
Deferred income		568		519		76
Long-term loans, current portion		10		10		1
Notes payable, current portion		6,500		6,856		998
Amounts due to related parties		153		873		127
Total current liabilities		82,057		52,613		7,661
Non-current liabilities (including amounts of the consolidated VIEs without recourse to the primary beneficiaries of RMB5,151 and RMB5,128 (US$747) as of December 31, 2017 and September 30, 2018):
Deferred income		73		50		7
Deferred revenue		—		1,431		208
Long-term loans		6,701		7,069		1,029
Notes payable		29,111		34,142		4,971
Deferred tax liabilities		3,375		3,989		581
Amounts due to related parties		—		3,008		438
Other non-current liabilities		39		190		28
Total non-current liabilities		39,299		49,879		7,262
Total liabilities		121,356		102,492		14,923
Commitments and contingencies
Redeemable noncontrolling interests		11,022		—		—
Equity
Class A ordinary shares, par value US$0.00005 per share, 825,000,000 shares authorized, and 27,614,978 shares and 27,654,802 shares issued and outstanding as of December 31, 2017 and September 30, 2018		—		—		—
Class B ordinary shares, par value US$0.00005 per share, 35,400,000 shares authorized, and 7,201,254 shares and 7,201,254 shares issued and outstanding as of December 31, 2017 and September 30, 2018		—		—		—
Additional paid-in capital		12,088		32,090		4,672
Retained earnings		102,328		127,201		18,521
Accumulated other comprehensive income		930		399		58
Total Baidu, Inc. shareholders’ equity		115,346		159,690		23,251
Noncontrolling interests		4,004		13,154		1,915
Total equity		119,350		172,844		25,166
Total liabilities, redeemable noncontrolling interests and equity		251,728		275,336		40,089

The accompanying notes are an integral part of the unaudited interim condensed consolidated financial statements.

- 1 -

BAIDU, INC.

UNAUDITED INTERIM CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Amounts in millions of Renminbi (“RMB”), and in millions of U.S. Dollars (“US$”), except for number of shares and per share (or ADS) data)

	For the three months ended									For the nine months ended
	September 30, 2017			September 30, 2018			September 30, 2018			September 30, 2017			September 30, 2018			September 30, 2018
	RMB			RMB			US$			RMB			RMB			US$
Revenues:
Online marketing services		20,108			22,481			3,273			52,729			60,715			8,840
Others		3,381			5,722			833			8,525			14,367			2,092
Total revenues		23,489			28,203			4,106			61,254			75,082			10,932
Operating costs and expenses:
Cost of revenues		11,801			14,218			2,070			31,616			36,133			5,261
Selling, general and administrative		3,746			5,641			821			9,497			13,288			1,935
Research and development		3,242			3,916			570			9,225			11,243			1,637
Total operating costs and expenses		18,789			23,775			3,461			50,338			60,664			8,833
Operating profit		4,700			4,428			645			10,916			14,418			2,099
Other income:
Interest income		876			1,258			183			2,237			2,961			431
Interest expense		(557	)		(479	)		(70	)		(1,214	)		(1,309	)		(191	)
Foreign exchange loss, net		(130	)		(54	)		(8	)		(370	)		(72	)		(10	)
(Loss) income from equity method investments		(73	)		419			61			(267	)		311			45
Others, net		4,229			7,877			1,147			4,893			9,964			1,451
Total other income, net		4,345			9,021			1,313			5,279			11,855			1,726
Income before income taxes		9,045			13,449			1,958			16,195			26,273			3,825
Income taxes		1,097			2,053			299			2,066			4,259			620
Net income		7,948			11,396			1,659			14,129			22,014			3,205
Less: net income (loss) attributable to noncontrolling interests		(1	)		(1,000	)		(146	)		(12	)		(3,478	)		(506	)
Net income attributable to Baidu, Inc.		7,949			12,396			1,805			14,141			25,492			3,711
Earnings per Class A and Class B ordinary shares:
Basic		242.48			355.27			51.73			402.48			726.87			105.83
Diluted		240.49			352.57			51.34			400.29			720.30			104.88
Earnings per ADS (1 Class A ordinary share equals 10 ADSs):
Basic		24.25			35.53			5.17			40.25			72.69			10.58
Diluted		24.05			35.26			5.13			40.03			72.03			10.49
Weighted average number of Class A and Class B ordinary shares outstanding:
Basic		34,703,924			34,891,733			34,891,733			34,705,293			34,894,758			34,894,758
Diluted		34,991,177			35,158,747			35,158,747			34,895,005			35,213,237			35,213,237
Other comprehensive income:
Foreign currency translation adjustment		409			411			60			1,022			159			23
Unrealized gains on available-for-sale investments, net of reclassification		463			72			10			639			317			46
Other comprehensive income , net of tax		872			483			70			1,661			476			69
Comprehensive income		8,820			11,879			1,729			15,790			22,490			3,274
Less: comprehensive income (loss) attributable to noncontrolling interests and redeemable noncontrolling interests		(60	)		(612	)		(89	)		(204	)		(2,471	)		(360	)
Comprehensive income attributable to Baidu, Inc. ordinary shareholders		8,880			12,491			1,818			15,994			24,961			3,634

The accompanying notes are an integral part of the unaudited interim condensed consolidated financial statements.    

- 2 -

BAIDU, INC.

UNAUDITED INTERIM CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Amounts in millions of Renminbi (“RMB”), and in millions of U.S. Dollars (“US$”))

	For the three months ended									For the nine months ended
	September 30, 2017			September 30, 2018			September 30, 2018			September 30, 2017			September 30, 2018			September 30, 2018
	RMB			RMB			US$			RMB			RMB			US$
Cash flows from operating activities:
Net income		7,948			11,396			1,659			14,129			22,014			3,205
Adjustments to reconcile net income to net cash generated from operating activities:
Depreciation of fixed assets and computer parts		957			966			141			2,811			2,555			372
Gain on disposal of fixed assets		(9	)		(5	)		(1	)		(22	)		(29	)		(4	)
Amortization of intangible assets and licensed copyrights		2,636			4,163			606			6,277			9,195			1,339
Deferred income tax, net		(154	)		571			83			(617	)		504			73
Share-based compensation		841			1,239			180			2,268			3,134			456
Provision for doubtful accounts		484			142			21			659			507			74
Investment income		(790	)		(2,287	)		(333	)		(2,230	)		(6,081	)		(885	)
Gain on disposal of subsidiaries		(4,659	)		(6,893	)		(1,004	)		(5,557	)		(6,893	)		(1,004	)
Asset impairment		490			377			55			771			1,042			152
Loss (income) from equity method investments		73			(419	)		(61	)		267			(311	)		(45	)
Barter transaction revenue		(198	)		(503	)		(73	)		(708	)		(824	)		(120	)
Other noncash expenses (income)		131			88			13			592			(64	)		(9	)
Changes in assets and liabilities, net of effects of acquisition:
Accounts receivable		(551	)		(934	)		(136	)		(212	)		(428	)		(62	)
Other assets		404			1,219			176			203			(926	)		(136	)
Amounts due from related parties		(248	)		739			108			(34	)		16			2
Customer advances and deposits		762			678			99			898			817			119
Accounts payable and accrued liabilities		2,820			(118	)		(17	)		3,700			1,420			207
Deferred revenue		(184	)		386			56			(60	)		497			72
Deferred income		11			(37	)		(5	)		40			(87	)		(13	)
Amounts due to related parties		89			587			85			(122	)		972			142
Net cash generated from operating activities		10,853			11,355			1,652			23,053			27,030			3,935
Cash flows from investing activities:
Acquisition of fixed assets		(1,297	)		(2,219	)		(323	)		(3,590	)		(5,694	)		(829	)
Acquisition of computer parts		(20	)		(20	)		(3	)		(30	)		(83	)		(12	)
Disposal of fixed assets		12			25			4			42			41			6
Acquisition of business, net of cash acquired		(51	)		(1,188	)		(173	)		(553	)		(1,188	)		(173	)
Acquisition of intangible assets		(3,306	)		(3,616	)		(526	)		(8,180	)		(9,582	)		(1,395	)
Purchases of held-to-maturity investments		(22,550	)		(12,940	)		(1,884	)		(43,416	)		(19,990	)		(2,911	)
Sales and maturities of held-to-maturity investments		15,800			12,800			1,864			35,646			36,500			5,315
Purchases of available-for-sale investments		(54,820	)		(88,545	)		(12,892	)		(155,822	)		(187,619	)		(27,318	)
Sales and maturities of available-for-sale investments		45,543			97,325			14,171			142,344			169,006			24,608
Purchases of other long-term investments		(996	)		(2,506	)		(365	)		(1,806	)		(6,763	)		(985	)
Cash distribution of long-term investments		4			8			1			13			18			3
Sales of other long-term investments		—			—			—			—			2,519			367
Disposal of subsidiaries’ shares		1,031			(5,353	)		(779	)		1,387			(5,353	)		(779	)
Loans provided to related parties		—			(5,540	)		(807	)		—			(5,540	)		(807	)
Micro loan origination and disbursement		(17,375	)		(8,187	)		(1,192	)		(37,667	)		(35,824	)		(5,216	)
Principal payments received on micro loans		12,161			8,070			1,175			23,406			38,063			5,542
Purchases of other invested securities		(10,260	)		(2,064	)		(301	)		(38,129	)		(16,362	)		(2,382	)
Sales and maturities of other invested securities		13,472			1,823			265			24,363			24,949			3,633
Net cash used in investing activities		(22,652	)		(12,127	)		(1,765	)		(61,992	)		(22,902	)		(3,333	)
Cash flows from financing activities:
Repayment of short-term loans		(456	)		(635	)		(92	)		(530	)		(650	)		(95	)
Proceeds from short-term loan		536			775			113			551			1,508			220
Proceeds from long-term loans		—			—			—			299			714			104
Repayment of long-term debt		(2,339	)		(94	)		(14	)		(2,339	)		(94	)		(14	)
Proceeds from note issuance		9,926						—			9,926			9,479			1,380
Repayment of long-term notes		—			(6,807	)		(991	)		—			(6,807	)		(991	)
Payment of note issuance costs		(10	)		(1	)		—			(10	)		(15	)		(2	)
Loans borrowed from related parties		—			2,150			313						2,150			313
Payment of capital lease obligation		—			—			—			(8	)		—			—
Proceeds from issuance of Convertible Notes		—			—			—			8,463			—			—
Proceeds from issuance of subsidiaries’ shares		—			40			6						15,689			2,284
Repurchase of ordinary shares		—			(3,312	)		(482	)		(1,723	)		(3,312	)		(482	)
Capital contributions from noncontrolling interests		200			—			—			200			—			—
Proceeds from exercise of share options		127			8			1			324			692			101
Proceeds from secured borrowings from third-party financial institutions		4,136			1,860			271			8,808			10,380			1,511
Repayment of secured borrowings from third-party financial institutions		(480	)		(5,529	)		(805	)		(1,422	)		(13,426	)		(1,955	)
Proceeds from third-party investors for sale of financial products		25,727			—			—			82,352			15,143			2,205
Repayment to third-party investors for sale of financial products		(25,279	)		(2,540	)		(370	)		(61,133	)		(33,376	)		(4,860	)
Net cash generated from financing activities		12,088			(14,085	)		(2,050	)		43,758			(1,925	)		(281	)
Effect of exchange rate changes on cash, cash equivalents and restricted cash		(92	)		1,107			161			(231	)		2,251			327
Net increase in cash, cash equivalents and restricted cash		197			(13,750	)		(2,002	)		4,588			4,454			648
Cash, cash equivalents and restricted cash at beginning of the period		15,607			29,540			4,301			11,216			11,336			1,651
Cash, cash equivalents and restricted cash at end of the period		15,804			15,790			2,299			15,804			15,790			2,299
Non-cash investing and financing activities:
Disposal of subsidiaries’ shares		—			11,000			1,602			—			11,000			1,602
Acquisition of licensed copyrights included in accounts payable and deferred revenue		4,254			7,085			1,032			4,254			7,085			1,032
Acquisition of licensed copyrights from nonmonetary content exchanges		170			232			34			537			442			64

The accompanying notes are an integral part of the unaudited interim condensed consolidated financial statements.

- 3 -

BAIDU, INC.

NOTES TO THE UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

1. BASIS OF PRESENTATION

Basis of Consolidation

The unaudited interim condensed consolidated financial statements include the accounts of Baidu, Inc. (“Baidu” or the “Company”), its subsidiaries, variable interest entities (“VIEs”) and the subsidiaries of the VIEs. The Company, its subsidiaries, VIEs and subsidiaries of the VIEs are hereinafter collectively referred to as the “Group.”

As of September 30, 2018, the Company has subsidiaries incorporated in countries and jurisdictions including the People’s Republic of China (“PRC”), Hong Kong, Japan, Cayman Islands and British Virgin Islands (“BVI”).

As of September 30, 2018, the Company also effectively controls a number of VIEs through a series of contractual agreements. The significant VIEs of the Group include:

• Beijing Baidu Netcom Science Technology Co., Ltd. (“Baidu Netcom”), controlled by the Company and Baidu Online Network Technology (Beijing) Co., Ltd. (“Baidu Online”), one of the Company’s wholly-owned subsidiaries;

• Beijing Perusal Technology Co., Ltd. (“Beijing Perusal”), controlled by Baidu Online; and

• Other VIEs controlled by the Company’s subsidiaries other than Baidu Online.

The Group offers online marketing services, operates AI-powered new business initiatives, operates an online video platform offering advertising business and offers membership services of its content library. The Group’s principal geographic market is in the PRC. The Company does not conduct any substantive operations on its own, but conducts its primary business operations through its subsidiaries and VIEs in the PRC.

PRC laws and regulations prohibit or restrict foreign ownership of internet content, advertising, audio and video services, and mobile application distribution businesses. To comply with these foreign ownership restrictions, the Group operates its websites and primarily provides services subject to such restriction in the PRC through the VIEs, the PRC legal entities that were established or whose equity shares were held by the individuals authorized by the Group. The paid-in capital of the VIEs was mainly funded by the Group through loans extended to the authorized individuals who were the shareholders of the VIEs. The Group has entered into proxy agreements or powers of attorney and exclusive equity purchase option agreement with the VIEs and nominee shareholders of the VIEs through the Company or its subsidiaries (“Primary Beneficiaries”), which give the Primary Beneficiaries the power to direct the activities that most significantly affect the economic performance of the VIEs and to acquire the equity interests in the VIEs when permitted by the PRC laws, respectively. Certain exclusive agreements have been entered into with the VIEs through the Primary Beneficiaries or their wholly-owned subsidiaries in the PRC, which obligate the Primary Beneficiaries to absorb losses of the VIEs’ that could potentially be significant to the VIEs or entitle the Primary Beneficiaries to receive economic benefits from the VIEs that could potentially be significant to the VIEs. In addition, the Group has entered into certain agreements with the shareholders of the VIEs through the Primary Beneficiaries or their wholly-owned subsidiaries, including loan agreements for the paid-in capital of the VIEs and equity pledge agreements for the equity interests in the VIEs held by the shareholders of the VIEs.

Despite the lack of technical majority ownership, there exists a parent-subsidiary relationship between the Primary Beneficiaries and the VIEs through the aforementioned agreements with the shareholders of the VIEs. The shareholders of the VIEs effectively assigned all of their voting rights underlying their equity interest in the VIEs to the Primary Beneficiaries. In addition, through the other exclusive agreements, which consist of operating agreements, technology consulting and services agreements and license agreements, the Primary Beneficiaries, by themselves or their wholly-owned subsidiaries in the PRC, demonstrate their ability and intention to continue to exercise the ability to absorb losses or receive economic benefits that could potentially be significant to the VIEs. The VIEs are subject to operating risks, which determine the variability of the Company’s interest in those entities. Based on these contractual arrangements, the Company consolidates the VIEs as required by SEC Regulation S-X Rule 3A-02 and Accounting Standards Codification (“ASC”) topic 810, Consolidation, because the Company holds all the variable interests of the VIEs through the Primary Beneficiaries.

Unrecognized revenue-producing assets held by the VIEs include certain internet content provisions and other licenses, domain names and trademarks. The internet content provisions and other licenses, which are held by the VIEs that provide the relevant services, are required under relevant PRC laws, rules and regulations for the operation of Internet businesses in the PRC, and therefore are integral to the Company’s operations.

- 4 -

BAIDU, INC.

NOTES TO THE UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

In March 2018, the contractual agreements for certain VIEs, including Baidu Netcom and Beijing Perusal, were amended to include the following terms:

a. Exclusive equity purchase and transfer option agreement

The Company has (i) an exclusive option to purchase, when and to the extent permitted under PRC laws, all or part of the equity interests in the VIE or all or part of the assets held by the VIE, (ii) an exclusive right to cause the nominee shareholders to transfer their equity interest in the VIE to the Company or any designated third party and (iii) an obligation to provide unlimited financial support to the VIEs when the VIEs become in need of any form of reasonable financial support in the normal operation of business. If the VIEs were to incur any loss and as a result cannot repay any loans from the Company, the Company will unconditionally forgive any such loans to the VIEs upon provision by the VIEs of sufficient proof for its loss and incapacity to repay.

b. Proxy Agreements/Power of Attorney

The appointment of any individuals to exercise the powers and rights assigned pursuant to the Proxy Agreement requires the approval of the Company. All the activities in relation to such powers and rights assigned are directed and approved by the Company. The shareholders of the VIEs agreed to entrust all the rights to exercise their voting power and any other rights as shareholders of the VIEs to the person(s) designated by the Company. The shareholders of the VIEs have each executed an irrevocable power of attorney to appoint the person(s) designated by the Company as their attorney-in-fact to vote on their behalf on all matters requiring shareholder approval.

As a result, the power and the rights pursuant to the Proxy Agreements have since been effectively reassigned from Baidu Online to the Company which has the power to direct the activities of the VIEs that most significantly impact the VIEs’ economic performance. The Company is also obligated to absorb the expected losses of the VIE through the financial support as described above. Therefore, the Company has replaced Baidu Online as the Primary Beneficiary of Baidu Netcom and Beijing Perusal since March 2018. As the VIEs were subject to indirect control by the Company through WFOE immediately before and direct control immediately after the contractual agreements were amended, the change of the primary beneficiary of the VIEs was accounted for as a common control transaction based on the carrying amount of the net assets transferred.

In the opinion of the Company’s legal counsel, (i) the ownership structure relating to the VIEs of the Company is in compliance with existing PRC laws and regulations; (ii) the contractual arrangements with the VIEs and their shareholders are valid, binding and enforceable, and will not result in any violation of PRC laws or regulations currently in effect; and (iii) the performance of the VIEs and their shareholders is in compliance with the articles of association and business licenses of the VIEs.

However, uncertainties in the PRC legal system could cause the Company’s current ownership structure to be found in violation of any existing and/or future PRC laws or regulations and could limit the Company’s ability, through the Primary Beneficiaries, to enforce its rights under these contractual arrangements. Furthermore, shareholders of the VIEs may have interests that are different with those of the Company, which could potentially increase the risk that they would seek to act in contrary to the terms of the aforementioned agreements. In addition, if the current structure or any of the contractual arrangements were found to be in violation of any existing or future PRC laws, the Company may be subject to penalties, which may include but not be limited to, the cancellation or revocation of the Company’s business and operating licenses, being required to restructure the Company’s operations or discontinue the Company’s operating activities. The imposition of any of these or other penalties may result in a material and adverse effect on the Company’s ability to conduct its operations. In such case, the Company may not be able to operate or control the VIEs, which may result in deconsolidation of the VIEs.

The following tables set forth the financial statement balances and amounts of the VIEs and their subsidiaries which are included in the consolidated financial statements after the elimination of intercompany balances and transactions among VIEs and their subsidiaries within the Group:

- 5 -

BAIDU, INC.

NOTES TO THE UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

	As of December 31, 2017		As of September 30, 2018
	RMB		RMB		US$
	(In millions)
			(unaudited)
Assets
Current
Cash and cash equivalents		4,045		1,365		199
Short-term investments		2,052		1,978		288
Accounts receivable, net		3,021		3,907		569
Others		5,280		4,381		638
		14,398		11,631		1,694
Non-current
Fixed assets, net		2,845		4,310		628
Intangible assets, net		2,104		3,528		514
Long-term investments, net		10,614		18,197		2,650
Others		6,488		10,710		1,559
		22,051		36,745		5,351
Total		36,449		48,376		7,045
Third-party liabilities
Current
Accounts payable and accrued liabilities		14,073		12,586		1,833
Customer advances and deposits		2,288		2,573		375
Others		2,414		7,849		1,143
		18,775		23,008		3,351
Non-current		5,151		5,128		747
Total		23,926		28,136		4,098
Inter-company liabilities*
Inter-company payable to subsidiaries for technology consulting and service fees		2,828		1,443		210
Others		4,605		9,184		1,337
Total		7,433		10,627		1,547

	For the three months ended
	September 30, 2017			September 30, 2018
	RMB			RMB			US$
	(In millions)
	(unaudited)
Total revenues		7,954			9,444			1,375
Net loss		(139	)		(805	)		(117	)
Net cash provided by (used in) operating activities		3,640			3,146			458
Net cash provided by (used in) investing activities		102			(8,597	)		(1,252	)
Net cash provided by (used in) financing activities		(2,502	)		1,728			252

- 6 -

BAIDU, INC.

NOTES TO THE UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

	For the nine months ended
	September 30, 2017			September 30, 2018
	RMB			RMB			US$
	(In millions)
	(unaudited)
Total revenues		21,733			24,931			3,630
Net income (loss)		891			(4,892	)		(712	)
Net cash provided by (used in) operating activities		7,595			5,101			743
Net cash provided by (used in) investing activities		(3,123	)		(17,193	)		(2,503	)
Net cash provided by (used in) financing activities		(3,331	)		9,208			1,341

* Inter-company liabilities represent payable balances of each VIE due to subsidiaries within the Group pursuant to the technology consulting and service agreements. Other payables to non-VIE subsidiaries within the Group were included in third-party liabilities.

As of September 30, 2018, there was no pledge or collateralization of the VIEs’ assets other than those pledged under the equity pledge agreements with respect to the VIE contractual agreements. The amount of the net assets of the VIEs was RMB9.6 billion (US$1.4 billion) as of September 30, 2018. The creditors of the VIEs’ third-party liabilities did not have recourse to the general credit of the Company in the normal course of business. The Company did not provide or intend to provide financial or other supports not previously contractually required to the VIEs during the years presented.

Basis of Presentation

The unaudited interim condensed consolidated financial statements are prepared in accordance with United States generally accepted accounting principles (“U.S. GAAP”).

Unaudited Interim Condensed Consolidated Financial Statements

In the opinion of management, the unaudited interim condensed consolidated financial statements, which are comprised of the condensed consolidated balance sheet of the Company as of September 30, 2018, the condensed consolidated statements of comprehensive income and the condensed consolidated statements of cash flows for the three-month and nine-month periods ended September 30, 2018 and 2017, reflect all adjustments, consisting of normal and recurring adjustments, necessary to present fairly the Company’s consolidated financial position as of September 30, 2018, the Company’s consolidated results of operations and consolidated cash flows for the three-month and nine-month periods ended September 30, 2018 and 2017. Interim period results are not necessarily indicative of results of operations or cash flows for a full-year period. The consolidated balance sheet data as of December 31, 2017 was derived from the Company’s audited financial statements, but does not include all disclosures required by U.S. GAAP for annual financial statements. These financial statements and the notes thereto should be read in conjunction with the Company’s audited consolidated financial statements for the year ended December 31, 2017.

Use of Estimates

The preparation of the unaudited interim condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the period. Management evaluates estimates, including those related to the standalone selling prices of performance obligations of revenue contracts, accounts receivable allowances, credit loss allowance for micro loan receivables, fair values of options to purchase the Company’s or its subsidiaries’ ordinary shares, fair values of certain debt and equity investments, amortization and impairment of licensed copyrights, impairment of long-lived assets, long-term investments and goodwill, the purchase price allocation and fair value of noncontrolling interests with respect to business combinations and acquisition of equity method investees, deferred tax valuation allowance, and redeemable noncontrolling interests, among others. Management bases the estimates on historical experience and on various other assumptions that are believed to be reasonable, the results of which form the basis for making judgments about the carrying values of assets and liabilities. Actual results could differ from these estimates.

- 7 -

BAIDU, INC.

NOTES TO THE UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

Currency Translation for Financial Statements Presentation

Translations of amounts from RMB into US$ for the convenience of the reader have been calculated at the exchange rate of RMB6.8680 per US$1.00 on September 28, 2018, the last business day in the third quarter of 2018, as published on the website of the United States Federal Reserve Board. No representation is made that the RMB amounts could have been, or could be, converted into U.S. dollars at such rate.

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

The following accounting policies do not include all of the significant accounting policies of the Company, which were included in, and should be read in conjunction with, the audited consolidated financial statements as of and for the year ended December 31, 2017.

Cash and Cash Equivalents

Cash and cash equivalents primarily consist of cash, money market funds, and investments in interest bearing demand deposit accounts, time deposits and highly liquid investments with original maturities of three months or less from the date of purchase and are stated at cost which approximates their fair value.

Restricted Cash

Restricted cash mainly consists of the cash reserved in escrow accounts at certain banks as online payment service deposits.

In November 2016, the FASB issued Accounting Standards Update No. 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash, which requires companies to include amounts generally described as restricted cash and restricted cash equivalents in cash and cash equivalents when reconciling beginning-of-period and end-of-period total amounts presented in the statement of cash flows. The Company adopted the new standard effective January 1, 2018, using the retrospective transition method. All restricted cash was presented on the face of consolidated balance sheet as “Restricted cash;” there is no restricted cash or restricted cash equivalents presented elsewhere on the consolidated balance sheet.

Loan and Interest Receivables, net of allowance

Loan and interest receivables consist primarily of micro loans to individual borrowers. Such amounts are recorded at the principal net of allowance for credit losses relating to micro loans, and include accrued interest receivable as of the balance sheet date. The loan periods granted by the Company to the borrowers related to the micro loans generally range from one month to thirty-six months. The cash flows related to micro loans are included within the cash flows from investing activities category in the consolidated statement of cash flows. Allowance for credit losses relating to micro loans represent the Company’s best estimate of the losses inherent in the outstanding portfolio of loans. Judgment is required to determine the allowance amounts and whether such amounts are adequate to cover potential credit losses, and periodic reviews are performed to ensure such amounts continue to reflect the best estimate of the losses inherent in the outstanding portfolio of debts. The Company bases the allowance for loan and interest receivables credit losses primarily on historical loss experience using a roll rate-based model applied to the loan and interest receivables portfolios. The Company considers many factors, including but not limited to, the age of the amounts due, the payment history, the month of origination, the purpose of the loans, creditworthiness, financial conditions of the borrower, terms of the loans, regulatory environment, and the general economic conditions. In August, the Company completed the divestiture of its financial services business. Consequently, the loan and interest receivable balances were derecognized from the consolidated balance sheet upon disposal (Note 4).

- 8 -

BAIDU, INC.

NOTES TO THE UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

Licensed Copyrights

Licensed copyrights consist of professionally-produced content such as movies, television series, variety shows, sports and other video content acquired from external parties. The license fees are capitalized and, unless prepaid, a corresponding liability recorded when cost of the content is known, the content has been accepted by us in accordance with the conditions of the license agreement and the content is available for its first showing on our internet platform. Licensed copyrights are carried at the lower of unamortized cost or net realizable value. The current and non-current portions of licensed copyrights of video content are recorded in “Other current assets, net” or “Intangible assets, net,” respectively. The licensed copyrights include non-exclusive licensed copyrights and exclusive licensed copyrights. With non-exclusive licensed copyrights, the Company has the right to broadcast the contents only on its internet platform. With exclusive licensed copyrights, in addition to the broadcasting rights, the Company also has the right to sublicense the contents to third parties.

Non-exclusive licensed copyrights, mainly comprising of newly released movies, television series and seasonal variety shows, are generally amortized using an accelerated method based on historical viewership consumption patterns. Other non-exclusive licensed copyrights, mainly comprising of library movies, television series and variety shows and certain non-episodic features, are amortized on a straight-line basis, as the consumption pattern based on historical viewing data supports this amortization method. Estimates of the consumption patterns for licensed copyrights are reviewed periodically and revised, if necessary. The major factors that impact the viewership consumption patterns include film box office, ratings for television series and variety shows, user traffic on our platforms, placement schedule, user tastes and preferences, emerging cultural trends, merchandising and marketing efforts. When the amortization pattern is revised, it is accounted for as a change in accounting estimate prospectively in accordance with ASC 250 (“ASC 250”), Accounting Changes and Error Corrections.

The purchase cost of exclusive licensed copyrights includes a broadcasting right and a right to sublicense to third parties. The Company allocates the content cost to these two rights when the exclusive licensed copyrights are initially recognized, based on the relative proportion of our estimate of the total revenues that will be generated by each right. For the broadcasting right, which is the portion of an exclusive licensed copyright that generates direct and indirect advertising and membership revenues, the content costs are amortized in accordance with ASC 920-350 (“ASC 920-350”), Entertainment-Broadcasters: Intangibles—Goodwill and Other, using the same method as non-exclusive licensed copyrights described above. For the right to sublicense to third parties, which is the portion of an exclusive licensed copyright that generates direct revenues, the content costs are amortized in accordance with ASC topic 926 (“ASC 926”), Entertainment—Films using an individual-film-forecast-computation method, which amortizes such costs based on the ratio of the actual sublicensing revenues generated for the current period to the total sublicensing revenues estimated to be generated by the sublicensing right. The Company revisits the forecasted total direct revenues on a periodic basis and any resulting changes to such estimates and the resulting amortization expense are accounted for prospectively as a change in accounting estimate in accordance with ASC 250.

On a periodic basis, the Company evaluates the program usefulness of the broadcasting rights of its licensed copyrights and record such rights at the lower of unamortized cost or estimated net realizable value pursuant to the guidance in ASC 920-350. When there is a change in the expected usage of licensed copyrights, the Company estimates net realizable value of licensed copyrights to determine if any impairment exists.

Net realizable value is determined by estimating the expected cash flows generated from the provision of online advertising and membership services, less any direct costs, over the remaining useful lives of non-exclusive licensed copyrights. The Company estimates advertising and membership cash flows for each category of the content. Estimates that impact advertising and membership cash flows include anticipated levels of demand for our online advertising and membership services and the expected selling prices of our advertisements and membership. For the right to sublicense to third parties, the Company assesses recoverability in accordance with ASC 926-20, Entertainment—Films: Other Assets—Film Costs.

Investments

Short-term investments

All highly liquid investments with original maturities of greater than three months, but less than twelve months, are classified as short-term investments. Investments that are expected to be realized in cash during the next twelve months are also included in short-term investments.

- 9 -

BAIDU, INC.

NOTES TO THE UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

The Company accounts for short-term debt investments in accordance with ASC topic 320 (“ASC 320”), Investments — Debt Securities. The Company classifies the short-term investments in debt as “held-to-maturity” or “available-for-sale,” whose classification determines the respective accounting methods stipulated by ASC 320. Dividend and interest income, including amortization of the premium and discount arising at acquisition, for all categories of investments in securities are included in earnings. Any realized gains or losses on the sale of the short-term investments are determined on a specific identification method, and such gains and losses are reflected in earnings during the period in which gains or losses are realized. Debt investments not classified as trading or as held-to-maturity are classified as available-for-sale debt securities. Available-for-sale debt investments are reported at fair value, with unrealized gains and losses recorded in “Accumulated other comprehensive income.” An impairment loss on the available-for-sale debt securities is recognized in the consolidated statements of comprehensive income when the decline in value is determined to be other-than-temporary.

The securities that the Company has the positive intent and the ability to hold to maturity are classified as held-to-maturity securities and stated at amortized cost. For individual securities classified as held-to-maturity securities, the Company evaluates whether a decline in fair value below the amortized cost basis is other-than-temporary in accordance with the Company’s accounting policy and ASC 320. The other-than-temporary impairment loss is recognized in earnings equal to the entire excess of the debt security’s amortized cost basis over its fair value at the balance sheet date of the reporting period for which the assessment is made.

In accordance with ASC 320, the securities that are bought and held principally for the purpose of selling them in the near term are classified as trading securities. Unrealized holding gains and losses for trading securities are included in earnings.

Other invested securities

Other invested securities represent investments purchased by the Company for its financial services business which are resold to third-party investors. These transactions do not meet the requirements of asset derecognition in accordance with ASC topic 860 (“ASC 860”), Transfers and Servicing. The Company records the proceeds related to these transactions as secured borrowings included in “Amounts due to the third-party investors” on the consolidated balance sheets, and assets pledged are included in “Other invested securities” on the consolidated balance sheets. Other invested securities are issued by financial institutions and have a variable rate of return that is indexed to the performance of underlying assets. The Company initially records these investments at cost, which approximates its fair value at inception and subsequently records these investments at fair value. Changes in the fair value are reflected in earnings. The Cash flows related to purchases and maturities of other invested securities are classified as cash flows from investing activities, while proceeds and payments related to the sales and purchases of financial products are classified as cash flows from financing activities in the consolidated statements of cash flows. All other invested securities balances were derecognized from the consolidated balance sheet upon disposal (Note 4).

Long-term investments

The Company’s long-term investments consist of equity investments with readily determinable fair value, equity investments without readily determinable fair value, equity method investments, and other investments accounted for at fair value.

Prior to adopting ASC topic 321 (“ASC 321”), Investments — Equity Securities on January 1, 2018, the Company carries at cost its investments in investees which do not have readily determinable fair value and the Company does not have significant influence in accordance with ASC subtopic 325-20 (“ASC 325-20”), Investments-Other: Cost Method Investments. The Company only adjusts the carrying value of such investments for other-than-temporary declines in fair value and distributions of earnings that exceed the Company’s share of earnings since its investment.

Management regularly evaluates the impairment of the cost method investments based on the performance and financial position of the investee as well as other evidence of market value. Such evaluation includes, but is not limited to, reviewing the investee’s cash position, recent financing, projected and historical financial performance, cash flow forecasts and financing needs. An impairment loss is recognized in earnings equal to the excess of the investment’s cost over its fair value at the balance sheet date of the reporting period for which the assessment is made. The fair value would then become the new cost basis of the investment.

- 10 -

BAIDU, INC.

NOTES TO THE UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

The Company adopted ASC 321 on January 1, 2018 and the cumulative effect of RMB1.9 billion (US$270 million) was recorded as an adjustment to the opening retained earnings. Equity investments, except for those accounted for under the equity method, those that result in consolidation of the investee and certain other investments, are measured at fair values, and any changes in fair value are recognized in earnings. For equity securities without readily determinable fair values and do not qualify for the existing practical expedient in ASC 820 (“ASC 820”), Fair Value Measurements and Disclosures to estimate fair value using the net asset value per share (or its equivalent) of the investment, the Company elected to use the measurement alternative to measure those investments at cost, less any impairment, plus or minus changes resulting from observable price changes in orderly transactions for identical or similar investments of the same issuer, if any. Equity securities with readily determinable fair values are measured at fair values, and any changes in fair value are recognized in earnings. Unrealized gains before adopting ASC 321 were recorded in “Accumulated other comprehensive income,” which has been reclassified to the opening balance of retained earnings.

Investments in entities in which the Company can exercise significant influence but does not own a majority equity interest or control are accounted for using the equity method of accounting in accordance with ASC topic 323 (“ASC 323”), Investments-Equity Method and Joint Ventures. Under the equity method, the Company initially records its investment at cost and the difference between the cost of the equity investee and the fair value of the underlying equity in the net assets of the equity investee is recognized as equity method goodwill, which is included in the equity method investment on the consolidated balance sheets. The Company subsequently adjusts the carrying amount of its investment to recognize the Company’s proportionate share of each equity investee’s net income or loss into earnings. The Company will discontinue applying the equity method if an investment (and additional financial supports provided to the investee, if any) has been reduced to zero. When the Company has other investments in its equity-method investee and is not required to advance additional funds to that investee, the Company would continue to report its share of equity method losses in its statement of comprehensive income after its equity-method investment in ordinary shares has been reduced to zero, to the extent of and as an adjustment to the adjusted basis of the Company’s other investments in the investee. Such losses are first applied to those investments of a lower liquidation preference before being further applied to the investments of a higher liquidation preference. The Company evaluates the equity method investments for impairment under ASC 323. An impairment loss on the equity method investments is recognized in earnings when the decline in value is determined to be other-than-temporary.

In accordance with ASC 946-320 Financial Services—Investment Companies, Investments—Debt and Equity Securities, the Company accounts for long-term equity investments in unlisted companies held by consolidated investment companies at fair value. These investments were initially recorded at their transaction price net of transaction costs, if any. Fair value of these investments are re-measured periodically in accordance with ASC 820. These equity investments are classified within Level 3 in the fair value hierarchy, and changes in fair value are recorded in the consolidated statements of comprehensive income in the period the change occurs.

Revenue Recognition

The Company adopted ASC topic 606 (“ASC 606”), Revenue from Contracts with Customers from January 1, 2018, using the modified retrospective method. Revenues for the three-month and nine-month periods ended September 30, 2018 were presented under ASC 606, and revenues for the three-month and nine-month periods ended September 30, 2017 were not adjusted and continue to be presented under ASC topic 605, Revenue Recognition. The cumulative effect of adopting ASC 606 resulted in an increase RMB967 million (US$141 million) to the opening balance of retained earnings at January 1, 2018.

Commencing on January 1, 2018, the Company recognizes revenue in accordance with ASC 606. Revenue is recognized when control of promised goods or services is transferred to the Company’s customers in an amount of consideration to which an entity expects to be entitled to in exchange for those goods or services. Starting from January 1, 2018, pursuant to ASC 606, value added taxes (“VAT”) was reclassified from cost of revenue to net against revenues. The Company recognized VAT of RMB1.3 billion and RMB1.7 billion (US$244 million) for the three-month periods ended September 30, 2017 and 2018, respectively, and RMB3.4 billion and RMB 4.5 billion (US$652 million) for the nine-month periods ended September 30, 2017 and 2018, respectively.

- 11 -

BAIDU, INC.

NOTES TO THE UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

The following table presents the Company’s revenues disaggregated by revenue source:

	For the three months ended
	September 30, 2017		September 30, 2018		September 30, 2018
	RMB		RMB		US$
	(In millions)
	(unaudited)
Online marketing		20,108		22,481		3,273
iQIYI membership service		1,697		2,852		415
iQIYI content distribution		276		835		122
Interest income earned from provision of financial services		495		408		59
Others		913		1,627		237
Other revenue		3,381		5,722		833
Total revenue		23,489		28,203		4,106

	For the nine months ended
	September 30, 2017		September 30, 2018		September 30, 2018
	RMB		RMB		US$
	(In millions)
	(unaudited)
Online marketing		52,729		60,715		8,840
iQIYI membership service		4,607		7,421		1,081
iQIYI content distribution		958		1,641		239
Interest income earned from provision of financial services		1,029		1,724		251
Others		1,931		3,581		521
Other revenue		8,525		14,367		2,092
Total revenue		61,254		75,082		10,932

The Company’s revenue recognition policies effective on the adoption date of ASC 606 are as follows:

Performance-based online marketing services

Cost-per-click

The Company’s auction-based pay-for-performance (“P4P”) platform enables a customer to place its website link and related description on the Company’s search result list on the platform which could be accessed through personal computer or mobile devices. Customers make bids on keywords based on how much they are willing to pay for each click to their listings in the search results listed on the Company’s platform and the relevance between the keywords and the customer’s businesses. Internet users’ search of the keyword will trigger the display of the listings. The ranking of the customer’s listing depends on both the bidding price and the listing’s relevance to the keyword searched. Customers pay the Company only when a user clicks on one of its website links.

Besides the Company’s traditional auction-based P4P services, the Company also displays in-feed marketing to targeted users through Baidu Feed. Customers pay the Company when a targeted user clicks the in-feed marketing and are directed to its platforms.

Revenue is recognized when all of the revenue recognition criteria set forth in ASC 606 are met, which is generally when a user clicks on one of the customer-sponsored links or in-feed marketing.

Other performance-based online marketing services

To the extent the Company provides online marketing services based on performance criteria other than cost-per-click, such as the number of downloads (and user registration) of mobile apps and the pre-determined ratios of completed transaction volumes, revenue is recognized when the specified performance criteria are met along with the satisfaction of other applicable revenue recognition criteria as prescribed by ASC 606.

- 12 -

BAIDU, INC.

NOTES TO THE UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

Display advertisements

The Company provides display-based online advertising services to its customers by integrating text description, image and video, and displaying the advertisement in a prominent position of the search result page, vertical search products or Baidu Feed. The Company recognizes revenue in accordance with ASC 606, on a pro-rata basis over the contractual term for cost per time advertising arrangements commencing on the date the customer’s advertisement is displayed on the Company’s platform, or based on the number of times that the advertisement has been displayed for cost per thousand impressions advertising arrangements.

Online marketing services involving Baidu Union

Baidu Union is a program through which the Company expands distribution of its customers’ sponsored links or advertisements by leveraging the traffic of Baidu Union members’ internet properties. The Company makes payments to Baidu Union members for the acquisition of traffic. The Company is the principal in these transactions, as it is primarily responsible for fulfilling the service, has discretion in establishing pricing and controls the advertising inventory before the transfer to customers. Therefore, revenue is recognized on a gross basis on the amount of fees it billed to its customers. Payments made to Baidu Union members are recorded as traffic acquisition costs, which are included in “Cost of revenues” in the consolidated statements of comprehensive income.

Membership services

The Company offers membership services that provide subscribing members access to stream a library of premium content in exchange for upfront non-refundable membership fees. Membership periods range from one month to twelve months. The receipt of membership fees is initially recorded as deferred revenue, and revenue is recognized ratably over the membership period when services are rendered.

Content distribution

The Company generates revenues from sub-licensing content licensed from third party vendors for cash and through nonmonetary exchanges, mainly with other online video broadcasting companies. The exclusive licensing agreements the Company enters into with vendors has a definitive license period and provides the Company the rights to sub-license these contents to other third parties. The Company enters into a non-exclusive sub-license agreement with a sub-licensee for a period that falls within the original exclusive license period. For cash sub-licensing transactions, the Company receives the sub-license fee upfront under the sub-licensing arrangements and does not have any future obligation once it has provided the underlying content to the sub-licensee (which is provided at or before the beginning of the sub-license period). The sub-license fees are recognized in accordance with ASC 606 and represents a license of functional intellectual property that grants the right to use the Company’s licensed copyrights, and revenue is recognized when the licensed copyright is made available for the customer’s use and benefit. The attributable cost of cash sublicensing transactions are recognized as cost of revenues through the amortization of the sublicensing right component of the exclusive licensed copyright, computed using the individual-film-forecast-computation method in accordance with ASC 926.

The Company enters into nonmonetary transactions to exchange online broadcasting rights of licensed copyrights with other online video broadcasting companies from time to time. The exchanged licensed copyrights provide rights for each party to broadcast the licensed copyrights received on its own website only. Each transferring party retains the right to continue broadcasting the exclusive content on its own website and/or sublicense the rights to the content it surrendered in the exchange. The Company accounts for these nonmonetary exchanges in accordance with ASC 606, and records the transaction based on the fair value of the asset received starting from January 1, 2018. Barter sublicensing revenue are recognized in accordance with the same ASC 606 criteria above. The Company estimates the fair value of the licensed copyrights received based on various factors, including broadcasting schedule, cast and crew, theme and popularity, box office and market share of counterparties to the exchange.

The Company recognized barter sublicensing revenues of RMB198 million and RMB503 million (US$73 million) and related costs of RMB193 million and RMB523 million (US$76 million) for the three-month periods ended September 30, 2017 and 2018, respectively. The Company recognized barter sublicensing revenues of RMB708 million and RMB824 million (US$120 million) and related costs of RMB596 million and RMB818 million (US$119 million) for the nine-month periods ended September 30, 2017 and 2018, respectively.

- 13 -

BAIDU, INC.

NOTES TO THE UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

Financial services

The Company offers financial services which include provision of installment payment services to consumers and wealth management services to third-party investors. Interest income earned from provision of financial services is reported as “Other revenues” and reported on a net basis after deduction of related interest costs incurred. The Company recognized gross interest income of RMB1.1 billion and RMB616 million (US$90 million) and interest costs of RMB580 million and RMB208 million (US$30 million) for the three-month periods ended September 30, 2017 and 2018, respectively. The Company recognized gross interest income of RMB2.3 billion and RMB 3.3 billion (US$483 million) and interest costs of RMB1.2 billion and RMB1.6 billion (US$232 million) for the nine-month periods ended September 30, 2017 and 2018, respectively. The financial services business was disposed during the three-months ended September 30, 2018 (Note 4).

Barter transactions

The Company engages in certain barter transactions other than licensed copyrights of video contents, such as advertising, from time to time, and in such situations, follows the guidance set forth in ASC 606. The transaction price of the nonmonetary consideration is measured at fair value at contract inception. If fair value cannot be reasonably estimated, the Company measures the consideration indirectly by reference to the standalone selling price of the services promised to the customer in exchange for the consideration.

Other revenue recognition related policies

In accordance with ASC 606, for arrangements that include multiple performance obligations, primarily for advertisements to be displayed in different spots, placed under different forms and displayed at different times, the Company would evaluate all the performance obligations in the arrangement to determine whether each performance obligation is distinct. Consideration is allocated to each performance obligation based on its standalone selling price. If a promised good or service does not meet the criteria to be considered distinct, it is combined with other promised goods or services until a distinct bundle of goods or services exists.

When either party to a revenue contract has performed, the Company presents the contract in the consolidated balance sheets as a contract asset or a contract liability, depending on the relationship between the entity’s performance and the customer’s payment. Contract liabilities were presented as deferred revenue on the consolidated balance sheets. The increase in deferred revenue as compared to the year ended December 31, 2017 is a result of the increase in consideration received from the Company’s customers.

The Company does not disclose the value of unsatisfied performance obligations for (i) contracts with an original expected length of one year or less and (ii) contracts for which the Company recognizes revenue at the amount to which it has the right to invoice for services performed.

The opening balance of contract assets were RMB832 million as of January 1, 2018. As of September 30, 2018, contract assets of RMB1.6 billion (US$233 million) were recognized and included in “Other current assets, net” on the consolidated balance sheet.

The Company provides sales incentives to customers which entitle them to receive reductions in the price of the online marketing services by meeting certain cumulative consumption requirements. The Company accounts for these incentives granted to customers as variable consideration in accordance with ASC 606. The amount of variable consideration is measured based on the most likely amount of incentives to be provided to customers.

Fair Value Measurements of Financial Instruments

Financial instruments are in the form of cash and cash equivalents, restricted cash, short-term investments, other invested securities, accounts receivable, loan and interest receivables, amounts due from and due to related parties, other receivables, long-term investments, short-term loans, accounts payable and accrued liabilities, customer advances and deposits, derivative instruments, notes payable and long-term loans. The carrying amounts of these financial instruments, except for long-term equity investments without readily determinable fair values, long-term equity method investments, long-term notes payable and long-term loans, approximate their fair values because of their generally short maturities. Long-term equity investments with readily determinable fair values, other invested securities, investments accounted for at fair value, and derivative instruments are adjusted to fair value at each reporting date. The carrying amounts of long-term loans approximate fair values as the related interest rates approximate rates currently offered by financial institutions for similar debt instruments of comparable maturities. Fair value of notes payable is extracted directly from the quoted market price.

- 14 -

BAIDU, INC.

NOTES TO THE UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

Segment Reporting

Starting from April 2017, Search Services and Transaction Services were combined into one segment, namely, Baidu Core. The change in reportable segments reflects the Company’s strategic shift and the operational change to de-emphasize its transaction services business and shift such resources to support its online marketing services. As of December 31, 2017 and September 30, 2018, the Company had two reportable segments, Baidu Core and iQIYI. Baidu Core mainly provides keyword-based marketing services targeted at and triggered by internet users’ search queries, which mainly include P4P services, other online marketing services, and artificial intelligence-enabled new business initiatives. iQIYI is an online entertainment service provider that, offers original, professionally produced and partner-generated content on its platform. In early April 2018, iQIYI completed its initial public offering (“IPO”) on the Nasdaq Global Market.

The Company’s chief executive officer, who has been identified as the chief operating decision marker (“CODM”) reviews the operating results of Baidu Core and iQIYI in order to allocate resources and assess the Company’s performance. Accordingly, the financial statements include segment information which reflects the current composition of the reportable segments in accordance with ASC topic 280, Segment Reporting.

Goodwill

The Company assesses goodwill for impairment in accordance with ASC subtopic 350-20 (“ASC 350-20”), Intangibles – Goodwill and Other: Goodwill, which requires goodwill to be tested for impairment at the reporting unit level at least annually and more frequently upon the occurrence of certain events, as defined by ASC 350-20. As of December 31, 2017 and September 30, 2018, goodwill was allocated to the Company’s two reporting units, Baidu Core and iQIYI, respectively.

Contingencies

The Company records accruals for certain of its outstanding legal proceedings or claims when it is probable that a liability will be incurred and the amount of loss can be reasonably estimated. The Company evaluates, on a quarterly basis, developments in legal proceedings or claims that could affect the amount of any accrual, as well as any developments that would make a loss contingency both probable and reasonably estimable. The Company discloses the amount of the accrual if it is material.

When a loss contingency is not both probable and estimable, the Company does not record an accrued liability but discloses the nature and the amount of the claim if material. However, if the loss (or an additional loss in excess of the accrual) is at least reasonably possible, then the Company discloses an estimate of the loss or range of loss, if such estimate can be made and is considered material, or discloses that an estimate cannot be made. The assessment of whether a loss is probable or reasonably possible, and whether the loss or a range of loss is estimable, often involves complex judgments about future events. Management is often unable to estimate the loss or a range of loss, particularly where (i) the damages sought are indeterminate, (ii) the proceedings are in the early stages, or (iii) there is lacks clear or consistent interpretation of laws specific to the industry-specific complaints across different jurisdictions. In such cases, there are considerable uncertainties regarding the timing or ultimate resolution of such matters, including eventual loss, fine, penalty or business impact, if any.

3. BUSINESS COMBINATION

The total purchase consideration for business combinations in aggregate was RMB2.4 billion (US$ 353 million) including RMB1.3 billion (US$192 million) in cash for the nine-month period ended September 30, 2018, among which RMB1.9 billion (US$271 million) was allocated to goodwill, RMB958 million (US$139 million) was allocated to intangible assets, RMB491 million (US$73 million) was allocated to net assets other than goodwill and intangible assets and RMB889 million (US$130 million) was allocated to noncontrolling interest. The total purchase consideration for business combinations was RMB721 million for the nine-month period ended September 30, 2017. The Company expects to achieve significant synergies from such acquisitions which it plans to complement its existing businesses. The acquired entities were considered insignificant, both individually and in aggregate. The results of the acquired entities’ operations have been included in the Company’s consolidated financial statements since their respective dates of acquisition.

Neither the results of operations since the acquisition dates nor the pro forma results of operations of the acquirees were presented because the effects of these business combinations, both individually and in aggregate, were not significant to the Company’s consolidated results of operations.

- 15 -

BAIDU, INC.

NOTES TO THE UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

4. INVESTMENTS

Short-term Investments

As of September 30, 2018, the Company’s short-term investments comprised of only debt securities. All of the short-term held-to-maturity investments were deposits in commercial banks with maturities of less than one year and the Company has the positive intent and ability to hold those securities to maturity. The short-term available-for-sale investments include wealth management products issued by commercial banks and other financial institutions.

During the three-month periods ended September 30, 2017 and 2018, the Company recorded interest income from its short-term investments of RMB823 million and RMB1.1 billion (US$160 million), respectively in earnings.

During the nine-month periods ended September 30, 2017 and 2018, the Company recorded interest income from its short-term investments of RMB2.1 billion and RMB2.7 billion (US$391 million), respectively in earnings.

Long-term Investments

Equity investments at fair value with readily determinable fair value

Equity investments at fair value with readily determinable fair value represent investments in the equity securities of publicly listed companies for which the Company does not have significant influence. The equity investments were accounted for as available-for-sale equity investments prior the adoption of ASC 321. Starting in January 1, 2018 after adopting ASC 321, these investments were classified as equity investments at fair value with readily determinable fair value and reported at fair value. Changes in fair value were recognized in earnings, instead of accumulated other comprehensive income.

Equity investments at fair value without readily determinable fair value

Equity investments at fair value without readily determinable fair value were accounted as cost method investments prior to adopting ASC 321. As of December 31, 2017, the carrying amount of the Company’s cost method investments was RMB21.8 billion. In accordance with ASC 321, the Company elected to use the measurement alternative to measure such investments at cost, less any impairment, plus or minus changes resulting from observable price changes in orderly transactions for identical or similar investments of the same issuer, if any. As of September 30, 2018, the carrying amount of the Company’s equity investments without readily determinable fair value was RMB27.6 billion (US$4.0 billion), net of RMB1.2 billion (US$175 million) in accumulated impairment. As of September 30, 2018, RMB4.2 billion (US$609 million) of equity investments were measured at fair value using the measurement alternative based on observable price changes in orderly transactions for an identical or similar investment of the same issuer. RMB981 million (US$143 million ) and RMB4.2 billion (US$609 million) in unrealized gains and losses were recognized in earnings during the three-month and nine-month periods ended September 30, 2018, respectively.

For the three-month and nine-month periods ended September 30, 2018, RMB 298 million (US$43 million) and RMB348 million (US$51 million), respectively, of impairment charges were recognized on equity investments without readily determinable fair value.

Unrealized gains and losses of equity securities without readily determinable fair values for the three-month and nine-month periods ended September 30, 2018 were as follows:

	For the three months ended September 30, 2018						For the nine months ended September 30, 2018
	RMB			US$			RMB			US$
	(In millions)
Gross unrealized gains (upward adjustments)		1,059			154			6,463			941
Gross unrealized losses (downward adjustments excluding impairment)		(78	)		(11	)		(2,280	)		(332	)

- 16 -

BAIDU, INC.

NOTES TO THE UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

Realized and unrealized gains and losses for equity securities without readily determinable fair values recognized for the three-month and nine-month periods ended September 30, 2018 were as follows:

	For the three months ended September 30, 2018				For the nine months ended September 30, 2018
	RMB		US$		RMB		US$
	(In millions)
Net realized gains and losses on equity securities sold		—		—		124		18
Net unrealized gains and losses on equity securities held		981		143		4,183		609
Total net gains recognized in other income		981		143		4,307		627

Equity method investments

The carrying amounts of the Company’s equity method investments were RMB31.4 billion and RMB44.7 billion (US$6.5 billion) as of December 31, 2017 and September 30, 2018, respectively. There was no impairment recognized for equity method investments during the three-month periods ended September 30, 2017 and 2018. For the nine-month periods ended September 2017 and 2018, impairment charges recognized for equity method investments, were nil and RMB48 million (US$7 million), respectively.

Disposal of financial services business

On April 29, 2018, the Company entered into definitive agreements with certain third-party investors relating to the disposal of its wholly-owned financial services business, which is conducted through various legal entities of the Group. The Company conducted a series of legal restructuring and recapitalization of entities conducting the financial services business (“Du Xiaoman”), which were accounted for as transactions under common control. Du Xiaoman provides consumer credit, wealth management and other financial services.

In August 2018, Du Xiaoman issued preferred shares to third-party investors, which resulted in the Company becoming a minority shareholder of the financial services business. Accordingly, Du Xiaoman was deconsolidated from the Group and a disposal gain of RMB6.0 billion (US$874 million) was recognized in “Other income, net.”

The disposal of the financial services business did not meet the definition of a discontinued operation in accordance with ASC subtopic 205-20, Presentation of Financial Statements—Discontinued Operations, as it did not represent a strategic shift that has a major effect on the Group’s operations and financial results.

The Company’s retained an equity interest of 41% on a fully diluted basis, and accounted for Du Xiaoman as an equity method investment in accordance with ASC 323, as it retained significant influence over the divestiture. The Company adopted a one-quarter lag in reporting on its share of income (loss) from Du Xiaoman.

Disposal of Global DU business

In July 2018, the Company completed the disposal of its global ad and tools business (“Global DU business”) which was operated in various subsidiaries and VIEs of the Group to third-party companies, and recognized a total disposal gain of RMB893 million (US$130 million) in “Other income, net.” The Company’s retained interest in the divestiture as accounted for as equity method investment.

The fair values of the Company’s retained interest in Du Xiaoman and Global DU business were estimated by using the income approach or market approach. Inputs used in these methodologies primarily included future cash flows, discount rate, and the selection of comparable companies operating in similar businesses. Transactions with these equity investees are aggregately disclosed in Note 6.

Investment accounted for at fair value

Long-term equity investments in unlisted companies held by consolidated investment companies are accounted for at fair value in accordance with ASC subtopic 946-320 Financial Services — Investment Companies, Investments — Debt and Equity Securities. These investments are carried at fair value with realized or unrealized gains and losses recorded in “Other income, net” in the consolidated statements of comprehensive income.

- 17 -

BAIDU, INC.

NOTES TO THE UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

The methodology used in the determination of fair values for held-to-maturity debt investments, available-for-sale debt investments, equity investments with readily determinable fair values and other investment securities accounted for at fair value were disclosed in Note 6.

Investments classification as of December 31, 2017 and September 30, 2018 were shown as below:

	As of December 31, 2017
	Cost or Amortized cost		Gross unrecognized holding gains		Gross unrecognized holding losses			Gross unrealized gains		Gross unrealized losses			Fair value
	RMB		RMB		RMB			RMB		RMB			RMB
	(In millions)
Short-term investments:
Held-to-maturity debt investments		48,666		47		(18	)		—		—			48,695
Available-for-sale debt investments		40,139							581		(5	)		40,715
Other invested securities:		18,289		—		—			169		(108	)		18,350
Long-term investments:
Available-for-sale equity investments		2,077		—		—			742		(46	)		2,773
Investments accounted for at fair value		307		—		—			14		—			321

	As of September 30, 2018
	Cost or Amortized cost		Gross unrecognized holding gains		Gross unrecognized holding losses		Gross unrealized gains		Gross unrealized loss			Fair value
	RMB		RMB		RMB		RMB		RMB			RMB		US$
	(In millions)
Short-term investments:
Held-to-maturity debt investments		31,939		166		—		—		—			32,105		4,675
Available-for-sale debt investments		55,520		—		—		1,313		(56	)		56,777		8,267
Long-term investments:
Equity investments at fair value with readily determinable fair value		4,808		—		—		1,022		(827	)		5,003		728
Available-for-sale debt investments		2,000		—		—		23		—			2,023		294
Investments accounted for at fair value		977		—		—		302		—			1,279		186

- 18 -

BAIDU, INC.

NOTES TO THE UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

5. CHANGES IN EQUITY AND REDEEMABLE NONCONTROLLING INTERESTS

	Number of shares			Amount		Additional paid-in capital		Retained earnings			Accumulated other comprehensive income			Non-controlling interests			Total shareholders’ equity			Redeemable non-controlling interests
				RMB		RMB		RMB			RMB			RMB			RMB			RMB
Balance at December 31, 2017		34,816,232			—		12,088		102,328			930			4,004			119,350			11,022
Cumulative effect of accounting change		—			—		—		2,821			(1,854	)		—			967			—
Net income (loss)		—			—		—		25,492			—			(3,478	)		22,014			—
Other comprehensive income (loss)		—			—		—		—			1,323			1,007			2,330			—
Business combination		—			—		75		—			—			938			1,013			—
Issuance of subsidiary shares		—			—		14,990		—			—			(822	)		14,168			—
Exercise of share-based awards		246,989			—		685		—			—			1			686			—
Share-based compensation		—			—		2,929		—			—			119			3,048			—
Accretion of redeemable non-controlling interests		—			—		—		(128	)		—			—			(128	)		128
Disposal of a subsidiary’s shares		—			—		1,323		—			—			235			1,558			—
Repurchase and retirement of ordinary shares		(207,165	)		—		—		(3,312	)		—			—			(3,312	)		—
Conversion of iQIYI preferred shares recognized as redeemable noncontrolling interests to ordinary shares		—			—		—		—			—			11,150			11,150			(11,150	)
Balance at September 30, 2018 (RMB)		34,856,056			—		32,090		127,201			399			13,154			172,844			—
Balance at September 30, 2018 (US$)					—		4,672		18,521			58			1,915			25,166			—

On June 27, 2018, the Company announced a share repurchase program under which the Company proposed to acquire up to an aggregate of US$1.0 billion of its ordinary shares over the next 12 months in the open market or through privately negotiated transactions, depending on market conditions and in accordance with applicable rules and regulations. The Company repurchased 207,165 Class A ordinary shares from the open market with an aggregate purchase price of US$487 million during the nine-month period ended September 30, 2018. The repurchased shares were cancelled under Cayman Islands law upon repurchase and the difference between the par value and the repurchase price was debited to retained earnings.

- 19 -

BAIDU, INC.

NOTES TO THE UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

6. FAIR VALUE MEASUREMENTS

ASC 820 establishes a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value as follows:

Level 1—	Observable inputs that reflect quoted prices (unadjusted) for identical assets or liabilities in active markets
Level 2—	Include observable inputs other than quoted prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets and liabilities in markets that are not active, or other inputs that are observable or can be corroborated by observable market data.
Level 3—	Unobservable inputs which are supported by little or no market activity

ASC 820 describes three main approaches to measuring the fair value of assets and liabilities: (1) market approach; (2) income approach and (3) cost approach. The market approach uses prices and other relevant information generated from market transactions involving identical or comparable assets or liabilities. The income approach uses valuation techniques to convert future amounts to a single present value amount. The measurement is based on the value indicated by current market expectations about those future amounts. The cost approach is based on the amount that would currently be required to replace an asset.

Assets and Liabilities Measured or Disclosed at Fair Value

In accordance with ASC 820, the Company measures equity investments with readily determinable fair value, other invested securities and investments accounted for at fair value on a recurring basis. The fair value of time deposits are determined based on the prevailing interest rates in the market. The fair values of the Company’s held-to-maturity investments as disclosed are determined based on the discounted cash flow model using the discount curve of market interest rates. The fair value of the Company’s available-for-sale debt investments and other invested securities are measured using the income approach, based on quoted market interest rates of similar instruments and other significant inputs derived from or corroborated by observable market data. The fair values of the Company’s equity investments in the equity securities of publicly listed companies are measured using quoted market prices. Investments accounted for at fair value are equity investments in unlisted companies held by consolidated investment companies, which do not have readily determinable market values. The fair value of these investments were categorized as Level 3 in the fair value hierarchy. The Company uses a combination of valuation methodologies, including market and income approaches based on the Company’s best estimate, which is determined by using information including but not limited to the pricing of recent rounds of financing, future cash flow forecasts, liquidity factors and multiples of a selection of comparable companies.

The Company measures certain debt and equity investments at fair value on a nonrecurring basis if an impairment charge is recognized. For equity investments without readily fair value for which the Company elected to use the measurement alternative, the equity investment is measured at fair value on a nonrecurring basis when there is an orderly transaction for identical or similar investments of the same issuer. The fair value of these investments were categorized as Level 3 in the fair value hierarchy. The Company’s non-financial assets, such as intangible assets, goodwill and fixed assets, would be measured at fair value only if they were determined to be impaired on other-than-temporary basis.

Assets and liabilities measured at fair value on a recurring basis or disclosed at fair value are summarized below:

- 20 -

BAIDU, INC.

NOTES TO THE UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

			Fair value measurement or disclosure at December 31, 2017
	Total fair value at December 31, 2017		Quoted prices in active markets for identical assets (Level 1)		Significant other observable inputs (Level 2)		Significant unobservable inputs (Level 3)
	RMB		RMB		RMB		RMB
	(In millions)
Fair value disclosure
Cash equivalents
Time deposits		130				130
Money market funds		2,384		2,384
Short-term investments
Held-to-maturity debt investments		48,695				48,695
Long-term notes payable		35,943				35,943
Fair value measurement
Short-term investments
Available-for-sale debt investments		40,715				40,715
Other invested securities		18,350				18,350
Long-term investments
Available-for-sale equity investments		2,773		2,773
Investments accounted for at fair value		321						321
Other non-current assets
Derivative instruments		168				168
Total assets measured at fair value		62,327		2,773		59,233		321

- 21 -

BAIDU, INC.

NOTES TO THE UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

					Fair value measurement or disclosure at September 30, 2018
	Total fair value at September 30, 2018				Quoted prices in active markets for identical assets (Level 1)		Significant other observable inputs (Level 2)		Significant unobservable inputs (Level 3)
	(RMB)		(US$)		(RMB)		(RMB)		(RMB)
	(In millions)
Fair value disclosure
Cash equivalents
Time deposits		1,498		218				1,498
Money market fund		2,672		389		2,672
Short-term investments:
Held-to-maturity debt investments		32,105		4,675				32,105
Long-term notes payable		40,328		5,872				40,328
Fair value measurement
Short-term investments:
Available-for-sale debt investments		50,161		7,304				50,161
Long-term investments:
Equity investments at fair value with readily determinable fair value		5,003		728		5,003
Investment accounted for at fair value		1,279		186						1,279
Other non-current assets
Derivative instruments		296		43				277		19
Accounts payable and accrued liabilities
Derivative instruments		123		18						123
Amounts due to related parties, non-current
Financial liability		347		51				347
Net assets measured at fair value		56,269		8,192		5,003		50,091		1,175

Assets measured at fair value on a non-recurring basis

The company measures non-financial assets such as long-term investments on a nonrecurring basis when impairment charges are recognized. These nonrecurring fair value measurements use significant unobservable inputs (Level 3). RMB197 million and RMB298 million (US$45 million) of long-term investments impairment charges were recognized for the three-month periods ended September 30, 2017 and 2018. RMB197 million and RMB396 million (US$58 million) of long-term investments impairment charges were recognized for the nine-month periods ended September 30, 2017 and 2018.

The remeasurement was due to declining financial performances and changes in the business circumstances of these investees. The corresponding impairment charges incurred were recorded accordingly. The Company uses a combination of valuation methodologies, including market and income approaches based on the Company’s best estimate to determine the fair value of these investments. For investments in private companies, information considered by the Company include but are not limited to the pricing of recent rounds of financing, future cash flow forecasts, and liquidity factors. For investments in listed companies, the Company mainly considered the quoted share price.

- 22 -

BAIDU, INC.

NOTES TO THE UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

7. SHARE-BASED COMPENSATION EXPENSES

Total share-based compensation expenses recognized for the three-month and nine-month periods ended September 30, 2017 and 2018 have been reported as follows:

	For the three months ended
	September 30, 2017		September 30, 2018		September 30, 2018
	RMB		RMB		US$
	(In millions)
	(unaudited)
Cost of revenues		53		58		9
Selling, general and administrative		252		545		79
Research and development		536		636		92
		841		1,239		180

	For the nine months ended
	September 30, 2017		September 30, 2018		September 30, 2018
	RMB		RMB		US$
	(In millions)
	(unaudited)
Cost of revenues		137		153		22
Selling, general and administrative		675		1,138		166
Research and development		1,456		1,843		268
		2,268		3,134		456

8. FIXED ASSETS

Fixed assets and the related accumulated depreciation as of December 31, 2017 and September 30, 2018 are as follows:

	As of December 31, 2017			As of September 30, 2018			As of September 30, 2018
	RMB			RMB			US$
	(In millions)
	(unaudited)
Computer equipment		18,354			23,539			3,427
Office building		4,003			4,163			606
Office building related facility machinery and equipment		1,956			2,166			315
Vehicles		80			162			24
Office equipment		690			747			109
Leasehold improvements		341			341			50
Construction in progress		680			693			101
		26,104			31,811			4,632
Accumulated depreciation		(13,629	)		(15,614	)		(2,274	)
		12,475			16,197			2,358

- 23 -

BAIDU, INC.

NOTES TO THE UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

9. LOANS PAYABLE

Short-term Loans

iQIYI

In June 2017, iQIYI entered into a banking facility agreement with China Minsheng Bank (Beijing Branch), pursuant to which iQIYI is entitled to borrow a secured RMB denominated loan of RMB300 million for one year with a fixed interest rate. The loan is intended for general working capital purposes. In November 2017, iQIYI drew down RMB132 million and RMB62 million with interest rates of 4.78% and 5.00%, respectively.

In August 2017, iQIYI entered into a banking facility agreement with China Merchants Bank (Beijing Branch), pursuant to which iQIYI is entitled to borrow a secured RMB denominated loan of RMB200 million for one year with an interest rate based on Loan Prime Rate (“LPR”) plus surcharges. The loan is intended for general working capital purposes. In September 2017, iQIYI drew down RMB106 million with an interest rate of 4.11%. In February and June, 2018, an additional RMB67 million (US$10 million) and RMB13 million (US$2 million) were drawn down with an interest of 3.92%, respectively. The RMB106 million drawn down in September 2017 was repaid when it became due.

In February 2018, iQIYI entered into a banking facility agreement with Industrial and Commercial Bank of China (Shenzhen Branch), pursuant to which iQIYI is entitled to borrow a secured RMB denominated loan of RMB100 million (US$15 million) for one year with an interest rate based on LPR plus surcharges. The loan is intended for general working capital purposes. In March and May, 2018, RMB30 million (US$4 million) and RMB20 million (US$3 million) were drawn down with an interest rate of 4.79%, respectively.

In May 2018, iQIYI entered into a banking facility agreement with the Hong Kong and Shanghai Banking Corporation, pursuant to which iQIYI is entitled to borrow a secured RMB denominated loan of RMB300 million (US$44 million) with an annual interest rate based on LPR plus surcharges. The loan is intended for general working capital purposes. In May, June and August 2018, RMB102 million (US$15 million), RMB100 million (US$15 million) and RMB125 million (US$18 million) were drawn down with an interest rate of 4.79%, respectively. During nine-month period ended September 30, 2018, RMB130 million (US$ 19 million) were repaid in total.

In July 2018, iQIYI entered into a banking facility agreement with Industrial and Commercial Bank of China (Shenzhen Branch), pursuant to which iQIYI is entitled to borrow a secured RMB denominated loan of RMB50 million (US$7 million) for one year with an interest rate based on LPR plus surcharges. The loan is intended for general working capital purposes. In July, 2018, iQIYI drew down RMB50 million (US$7 million) with an interest rate of 5.00%.

In August 2018, iQIYI entered into a banking facility agreement with Bank of China (Shanghai Branch), pursuant to which iQIYI is entitled to borrow an secured RMB denominated loan of RMB200 million (US$29 million) with an annual interest rate based on LPR plus surcharges. The loan is intended for general working capital purposes and is repayable in one year. In August, 2018, iQIYI drew down RMB200 million (US$29 million) with an annual interest rate of 4.79%.

In August 2018, iQIYI entered into a banking facility agreement with China Merchants Bank (Shanghai Branch), pursuant to which iQIYI is entitled to borrow an secured RMB denominated loan of RMB300 million (US$44 million) for one year with an interest rate based on LPR plus surcharges. The loan is intended for general working capital purposes. In August, 2018, iQIYI drew down RMB61 million (US$9 million) with an interest rate of 4.79%. In September, 2018, an additional RMB38 million (US$5 million) was drawn down with an interest rate of 4.79%.

In August 2018, iQIYI entered into a banking facility agreement with China Merchants Bank (Beijing Branch), pursuant to which iQIYI is entitled to borrow an secured RMB denominated loan of RMB500 million (US$73 million) for one year with an interest rate based on LPR plus surcharges. The loan is intended for general working capital purposes. In September, 2018, iQIYI drew down RMB202 million (US$29 million) with an interest rate of 3.92%.

- 24 -

BAIDU, INC.

NOTES TO THE UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

In September 2018, iQIYI entered into a banking facility agreement with Industrial and Commercial Bank of China (Shenzhen Branch), pursuant to which iQIYI is entitled to borrow a secured RMB denominated loan of RMB100 million (US$15 million) for one year with an interest rate based on LPR plus surcharges. The loan is intended for general working capital purposes. In September, 2018, iQIYI drew down RMB100 million (US$15 million) with an interest rate of 4.79%.

Du Xiaoman

In November 2016, the Company entered into a loan agreement with International Finance Corporation, pursuant to which the Company is entitled to borrow an unsecured RMB denominated loan of RMB500 million with a term of one year. Pursuant to the agreement, the loan shall only be used for the consumer credit business. In December 2016, the Company drew down RMB500 million with a fixed interest rate of 4.92%. The loan was extended to December 2018 with an interest rate of 6.04% via a renewed contract signed by both parties when the original loan became due. The loan balance was derecognized from the consolidated balance sheet upon disposal of the financial services business (Note 4).

In November 2016, the Company entered into a loan agreement with China Merchants Bank (Shanghai Branch), pursuant to which the Company is entitled to borrow an unsecured RMB denominated loan of RMB100 million with a term of one year. Pursuant to the agreement, the loan shall only be used by the Company for the consumer credit business. In December 2016 and January 2017, the Company drew down RMB85 million and RMB15 million, respectively, with a fixed interest rate of 4.18%. The loan was fully repaid when it became due. The loan balance was derecognized from the consolidated balance sheet upon disposal of the financial services business (Note 4).

In August 2017, the Company entered into a banking facility agreement with China Merchants Bank (Beijing Branch), pursuant to which the Company is entitled to borrow an unsecured RMB denominated loan of RMB300 million for one year with an annual interest rate at 116% of the benchmark one-year lending rate published by the People’s Bank of China. This facility is reserved for consumer credit business purposes. In September 2017, the Company drew down RMB130 million with an interest rate of 5.05%. The loan balance was derecognized from the consolidated balance sheet upon disposal of the financial services business (Note 4).

In September 2017, the Company entered into a banking facility agreement with China Citic Bank (Chongqing Branch), pursuant to which the Company is entitled to borrow an unsecured RMB denominated loan of RMB300 million for one year with an annual interest rate at 115% of the benchmark one-year lending rate published by the People’s Bank of China. This facility is reserved for commercial credit purposes. In September 2017, the Company drew down RMB300 million with an interest rate of 5.00% under the facility commitment. The loan balance was derecognized from the consolidated balance sheet upon disposal of the financial services business (Note 4).

In January 2018, the Company entered into a banking facility agreement with Bank of Dalian, pursuant to which the Company is entitled to borrow an unsecured RMB denominated loan of RMB400 million (US$58 million) for one year with fixed annual interest rate. This facility is reserved for commercial credit purposes. In January 2018, the Company drew down RMB400 million (US$58 million) with an interest rate of 6.13%. The loan balance was derecognized from the consolidated balance sheet upon disposal of the financial services business (Note 4).

Long-term Loans

Baidu

In June 2016, the Company entered into a five-year term and revolving facility agreement with a group of 21 syndicated bankers, pursuant to which the Company is entitled to borrow an unsecured US$ denominated floating rate loan of US$1.0 billion with a term of five years and to borrow an unsecured US$ denominated revolving loan of US$1.0 billion for five years. The facility was priced at 110 basis points over LIBOR and is intended for the general working capital of the Company. In June, 2016, the Company drew down two tranches of US$250 million each under the facility commitment. In November 2016, the Company drew down two tranches of US$ 250 million each under the facility commitment. In connection with the facility agreements, the Company entered into four interest rate swap agreements, pursuant to which the loans will be settled with a fixed annual interest rate of 2.11%, 2.10%, 2.78% and 2.78% respectively, during the respective term of the loans.

The interest rate swap agreements met the definition of a derivative in accordance with ASC 815 (“ASC 815”), Derivatives and Hedging. The derivatives related to the interest rate swap agreements are accounted at fair value and included in “Other non-current assets” on the consolidated balance sheets.

- 25 -

BAIDU, INC.

NOTES TO THE UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

iQIYI

In April 2017, iQIYI entered into a three-year loan agreement with Bank of China (Shanghai Branch), pursuant to which the Company is entitled to borrow a secured RMB denominated loan of RMB299 million with an annual interest rate at 94% of benchmark three-year lending rate published by the People’s Bank of China. The loan is intended for the general working capital of the Company. In April 2017, iQIYI drew down RMB299 million with an interest rate of 4.47%, pursuant to the agreement, the principal shall be repaid by installments from September 2017 to April 2020. RMB15 million was repaid when it became due. The amount repayable within twelve months were classified as “Long-term loans, current portion.”

Du Xiaoman

In March 2018, the Company entered into a banking facility agreement with International Finance Corporation, pursuant to which the Company is entitled to borrow two unsecured RMB denominated loans of RMB650 million (US$95 million) each for two to three years This facility is reserved for commercial credit business. In May 2018, RMB650 million (US$95 million) with an interest rate of 5.91% and RMB32 million (US$5 million) with an interest rate of 6.12% were drawn down under the three-year loan and RMB32 million (US$5 million) with an interest rate of 5.81% was drawn down under the two-year loan. The loan balance was derecognized from the consolidated balance sheet upon disposal of the financial services business (Note 4).

10. NOTES PAYABLE

Baidu, Inc.

On November 28, 2012, the Company issued and publicly sold two tranches of unsecured senior notes: (i) an aggregate principal amount of US$750 million matured on November 28, 2017 (the “2017 Notes”), and (ii) an aggregate principal amount of US$750 million that will mature on November 28, 2022 (the “ 2022 Ten-year Notes”). On August 6, 2013, the Company issued and publicly sold another tranche of unsecured senior notes with an aggregate principal amount of US$1.0 billion that matured on August 6, 2018 (the “2018 Notes”). On June 9, 2014, the Company issued and publicly sold the fourth tranche of unsecured senior notes with an aggregate principal amount of US$1.0 billion that will mature on June 9, 2019 (the “2019 Notes”). On June 30, 2015, the Company issued and publicly sold two tranches of unsecured senior notes: (i) an aggregate principal amount of US$750 million that will mature on June 30, 2020 (the “2020 Notes”), and (ii) an aggregate principal amount of US$500 million that will mature on June 30, 2025 (the “2025 Notes”). On July 6, 2017, the Company issued and publicly sold two tranches of unsecured senior notes: (i) an aggregate principal amount of US$900 million that will mature on July 6, 2022 (the “2022 Five-year Notes”), and (ii) an aggregate principal amount of US$600 million that will mature on July 6, 2027 (the “2027 Notes”). On March 29, 2018, the Company issued and publicly sold two tranches of unsecured senior notes: (i) an aggregate principal amount of US$1.0 billion that will mature on September 29, 2023 (the “2023 Notes”), and (ii) an aggregate principal amount of US$500 million that will mature on March 29, 2028 (the “ 2028 Notes”). The 2017 Notes and 2018 Notes were fully repaid when they became due.

The 2017 Notes, 2018 Notes, 2019 Notes, 2020 Notes, 2022 Ten-year Notes, 2025 Notes, 2022 Five-year Notes, 2027 Notes, 2023 Notes and 2028 Notes are collectively referred to as the “Notes.”

The 2017 Notes bear interest at the rate of 2.25% per annum and the 2022 Ten-year Notes bear interest at the rate of 3.50% per annum. Interests are payable semi-annually in arrears on and of each year, beginning on May 28, 2013. The 2018 Notes bear interest at the rate of 3.25% per annum. Interests are payable semi-annually in arrears on and of each year, beginning on February 6, 2014. The 2019 Notes bear interest at the rate of 2.75% per annum. Interests are payable semi-annually in arrears on and of each year, beginning on December 9, 2014. The 2020 Notes bear interest at the rate of 3.00% per annum and the 2025 Notes bear interest at the rate of 4.13% per annum. Interests are payable semi-annually in arrears on and of each year, beginning on December 30, 2015. At maturity, the Notes are payable at their principal amount plus accrued and unpaid interest thereon. The 2022 Five-year Notes bear interest at the rate of 2.88% per annum and the 2027 Notes bear interest at the rate of 3.63% per annum. Interest are payable semi-annually in arrears on and of each year, beginning on January 6 and July 6, 2018. The 2023 Notes bear interest at the rate of 3.88% per annum and the 2028 Notes bear interest at the rate of 4.38% per annum. Interest are payable semi-annually in arrears on and of each year, beginning on March 29 and September 29, 2018.

The Notes do not contain any financial covenants or other significant restrictions. In addition, the Notes are unsecured and rank lower than any secured obligation of the Group and have the same liquidation priority as any other unsecured liabilities of the Group, but senior to those expressly subordinated obligations, if any. The Company may, at its discretion, redeem all or any portion of the Notes at any time, at the greater of the principal amount and the make whole amount plus accrued and unpaid interest. As of September 30, 2018, the Company does not intend to redeem any portion of the Notes prior to the stated maturity dates. For certain notes, the Company has the obligation to redeem the Notes if a change in control occurs as defined in the indenture of the Notes.

- 26 -

BAIDU, INC.

NOTES TO THE UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

The Notes were issued at a discount amounting to RMB140 million (US$20 million). The issuance costs of RMB214 million (US$31 million) were presented as a direct deduction from the principal amount of the Notes on the consolidated balance sheets. Both the discount and the issuance costs are amortized as interest expense using the effective interest rate method through the maturity dates of the Notes. The effective interest rate was 2.36%, 3.39%, 3.00%, 3.13%, 3.59%, 4.22%, 3.08%, 3.73%, 3.99% and 4.50% for the 2017 Notes, the 2018 Notes, the 2019 Notes, the 2020 Notes, the 2022 Ten-year Notes, the 2025 Notes, 2022 Five-year Notes, 2027 Notes, 2023 Notes and 2028 Notes, respectively.

The principal amount and unamortized discount and debt issuance costs as of December 31, 2017 and September 30, 2018 are as follows:

	As of December 31, 2017			As of September 30, 2018			As of September 30, 2018
	RMB			RMB			US$
	(In millions)
				(unaudited)
Principal amount		35,782			41,207			5,999
Unamortized discount and debt issuance cost		(171	)		(209	)		(30	)
		35,611			40,998			5,969

11. INCOME TAXES

The Company is incorporated in the Cayman Islands and conducts its primary business operations through subsidiaries and VIEs in the PRC. It also has intermediate holding companies in the BVI and Hong Kong. Under the current laws of the Cayman Islands and BVI, the Company is not subject to tax on income nor capital gains. Additionally, upon payments of dividends by the Company to its shareholders, neither Cayman Islands nor BVI will impose withholding taxes. Under the Hong Kong tax laws, subsidiaries in Hong Kong are subject to the Hong Kong corporate income tax rate at 16.5% exempting foreign-derived income, and there are no withholding taxes in Hong Kong on remittance of dividends.

Under the PRC Enterprise Income Tax (“EIT”) Law, which has been effective since January 1, 2008, domestic enterprises and Foreign Investment Enterprises (the “FIE”) are subject to a unified 25% enterprise income tax rate, except for certain entities that are entitled to preferential tax treatments.

The effective tax rates were 12% and 15% for the three-month periods ended September 30, 2017 and 2018, respectively, and 13% and 16% for the nine-month periods ended September 30, 2017 and 2018, respectively. The effective tax rates for the three-month and nine-month periods ended September 30, 2018 were lower than the PRC statutory EIT rate of 25%, mainly due to preferential tax rates associated with High and New Technology Enterprises granted to certain PRC subsidiaries and VIEs.

The effective tax rates are subject to change in future, as the estimates of pretax income or loss for the year vary and certain subsidiaries of the Company may or may not continue to qualify for certain preferential tax rates.

The Company did not provide deferred income taxes and foreign withholding taxes on the undistributed earnings of foreign subsidiaries for the year 2017 and the nine-month period ended September 30, 2018 on the basis of its intent to permanently reinvest foreign subsidiaries’ earnings. As of September 30, 2018, the total amount of undistributed earnings from the Company’s PRC subsidiaries for which no withholding tax has been accrued was RMB 136.9 billion (US$19.9 billion). Under the PRC tax regulations, dividends from PRC companies to their overseas parents in respect of earnings derived from January 1, 2008 onwards are subject to PRC dividend withholding tax at 10%. Such rate could be reduced to 5% should treaty benefits be applicable. In the case of the Company’s VIEs in the PRC, their undistributed earnings were insignificant as of each of the balance sheet dates.

12. RESTRICTED NET ASSETS

Under PRC laws and regulations, there are restrictions on the Company’s PRC subsidiaries and VIEs with respect to transferring certain of their net assets to the Company either in the form of dividends, loans, or advances. The amount of net assets restricted include paid in capital and statutory reserve funds of the Company’s PRC subsidiaries and the net assets of the VIEs in which the Company has no legal ownership, totaling RMB18.6 billion and RMB26.1 billion (US$3.8 billion) as of December 31, 2017 and September 30, 2018, respectively.

- 27 -

BAIDU, INC.

NOTES TO THE UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

13. ACCUMULATED OTHER COMPREHENSIVE (LOSS)/INCOME

The changes in accumulated other comprehensive (loss) income by component, net of tax, are as follows:

	Foreign currency translation adjustments			Unrealized gains on available-for- sale investments			Total
	RMB			RMB			RMB
	(In millions)
	(unaudited)
Balance at December 31, 2016		(2,022	)		239			(1,783	)
Other comprehensive income before reclassification		974			1,406			2,380
Amounts reclassified from accumulated other comprehensive income (loss)		48			(767	)		(719	)
Net current-period other comprehensive income		1,022			639			1,661
Other comprehensive income (loss) attributable to noncontrolling interests and redeemable noncontrolling interests		192			—			192
Balance at September 30, 2017		(808	)		878			70
Balance at December 31, 2017		(888	)		1,818			930
Cumulative effect of accounting change *		—			(1,854	)		(1,854	)
Other comprehensive income before reclassification		79			3,529			3,608
Amounts reclassified from accumulated other comprehensive income		80			(1,358	)		(1,278	)
Net current-period other comprehensive income		159			317			476
Other comprehensive income (loss) attributable to noncontrolling interests and redeemable noncontrolling interests		(992	)		(15	)		(1,007	)
Balance at September 30, 2018		(1,721	)		2,120			399
Balance at September 30, 2018, in US$		(251	)		309			58

* Adjustment of net unrealized gains related to available-for-sale equity investments from accumulated other comprehensive income to opening retained earnings as a result of the adoption of ASC 321 on January 1, 2018.

The amounts reclassified out of accumulated other comprehensive (loss) income represent realized foreign currency translation adjustments and realized gains on the available-for-sale investments upon their sales, which were then recorded in “Other income, net” in the consolidated statements of comprehensive income.

- 28 -

BAIDU, INC.

NOTES TO THE UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

The following table sets forth the tax effect allocated to each component of other comprehensive income:

	For the three months ended
	September 30, 2017			September 30, 2018			September 30, 2018
	RMB			RMB			US$
	(In millions)
	(unaudited)
Unrealized gains on available-for-sale investments
Other comprehensive loss before reclassification		(86	)		(106	)		(15	)
Amounts reclassified from accumulated other comprehensive income		50			101			14
Net current-period other comprehensive loss		(36	)		(5	)		(1	)

	For the nine months ended
	September 30, 2017			September 30, 2018			September 30, 2018
	RMB			RMB			US$
	(In millions)
	(unaudited)
Unrealized gains on available-for-sale investments
Other comprehensive loss before reclassification		(175	)		(302	)		(44	)
Amounts reclassified from accumulated other comprehensive income		126			206			30
Net current-period other comprehensive loss		(49	)		(96	)		(14	)

14. CONTINGENCIES

Litigation

The Group was involved in certain cases pending in various PRC, U.S. and Brazilian courts as of September 30, 2018. These cases include allegation of copyright infringement cases, unfair competition cases, and defamation cases, among others. Adverse results in these lawsuits may include awards of damages and may also result in, or even compel, a change in the Company’s business practices, which could result in a loss of revenue or otherwise harm the business of the Company.

For many proceedings, the Company is currently unable to estimate the reasonably possible loss or a range of reasonably possible losses as the proceedings are in the early stages, and/or there is a lack of clear or consistent interpretation of laws specific to the industry-specific complaints among different jurisdictions. As a result, there is considerable uncertainty regarding the timing or ultimate resolution of such matters, which includes eventual loss, fine, penalty or business impact, if any, and therefore, an estimate for the reasonably possible loss or a range of reasonably possible losses cannot be made. However, the Company believes that such matters, individually and in the aggregate, when finally resolved, are not reasonably likely to have a material adverse effect on the Company’s consolidated results of operations, financial position and cash flows. With respect to the limited number of proceedings for which the Company was able to estimate the reasonably possible losses or the range of reasonably possible losses, such loss estimates were insignificant.

15. EARNINGS PER SHARE (“EPS”)

A reconciliation of net income attributable to Baidu, Inc. in the unaudited interim condensed consolidated statements of comprehensive income to the numerator for the computation of basic and diluted earnings per share for the three-month periods ended September 30, 2017 and 2018 is as follows:

- 29 -

BAIDU, INC.

NOTES TO THE UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

	For the three months ended
	September 30, 2017		September 30, 2018		September 30, 2018
	RMB		RMB		US$
	(In millions)
	(unaudited)
Net income attributable to Baidu, Inc.		7,949		12,396		1,805
Accretion of the redeemable noncontrolling interests		466		—		—
Net income available to ordinary shareholders		8,415		12,396		1,805

The following table sets forth the computation of basic and diluted net income attributable to Baidu, Inc. per Class A and Class B ordinary share for the three-month periods ended September 30, 2017 and 2018

	For the three months ended
	September 30, 2017				September 30, 2018
	Class A		Class B		Class A		Class A		Class B		Class B
	RMB		RMB		RMB		US$		RMB		US$
	(In millions, except for number of shares, per share and per ADS data)
	(unaudited)
Earnings per share — basic:
Numerator
Allocation of net income available to ordinary shareholders		6,666		1,749		9,838		1,432		2,558		373
Denominator
Weighted average ordinary shares outstanding		27,489,083		7,214,841		27,690,479		27,690,479		7,201,254		7,201,254
Denominator used for earnings per share		27,489,083		7,214,841		27,690,479		27,690,479		7,201,254		7,201,254
Earnings per share — basic		242.48		242.48		355.27		51.73		355.27		51.73
Earnings per share — diluted:
Numerator
Allocation of net income available to ordinary shareholders		6,680		1,735		9,857		1,435		2,539		370
Reallocation of net income available to ordinary shareholders as a result of conversion of Class B to Class A shares		1,735		—		2,539		370		—		—
Allocation of net income available to ordinary shareholders		8,415		1,735		12,396		1,805		2,539		370
Denominator
Weighted average ordinary shares outstanding		27,489,083		7,214,841		27,690,479		27,690,479		7,201,254		7,201,254
Conversion of Class B to Class A ordinary shares		7,214,841		—		7,201,254		7,201,254		—		—
Share-based awards		287,253		—		267,014		267,014		—		—
Denominator used for earnings per share		34,991,177		7,214,841		35,158,747		35,158,747		7,201,254		7,201,254
Earnings per share — diluted		240.49		240.49		352.57		51.34		352.57		51.34
Earnings per ADS:
Denominator used for earnings per ADS — basic		274,890,830				276,904,790		276,904,790
Denominator used for earnings per ADS — diluted		349,911,770				351,587,470		351,587,470
Earnings per ADS — basic		24.25				35.53		5.17
Earnings per ADS — diluted		24.05				35.26		5.13

The Company did not include certain stock options and restricted shares in the computation of diluted earnings per share for the three-month periods ended September 30, 2017 and 2018 when those stock options or restricted shares were anti-dilutive for the respective periods.

- 30 -

BAIDU, INC.

NOTES TO THE UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

A reconciliation of net income attributable to Baidu, Inc. in the unaudited interim condensed consolidated statements of comprehensive income to the numerator for the computation of basic and diluted earnings per share for the nine-month periods ended September 30, 2017 and 2018 is as follows:

	For the nine months ended
	September 30, 2017			September 30, 2018			September 30, 2018
	RMB			RMB			US$
	(In millions)
	(unaudited)
Net income attributable to Baidu, Inc.		14,141			25,492			3,711
Accretion of the redeemable noncontrolling interests		(173	)		(128	)		(19	)
Net income available to ordinary shareholders		13,968			25,364			3,692

The following table sets forth the computation of basic and diluted net income attributable to Baidu, Inc. per share for Class A and Class B ordinary shares for the nine-month periods ended September 30, 2017 and 2018:

	For the nine months ended
	September 30, 2017				September 30, 2018
	Class A		Class B		Class A		Class A		Class B		Class B
	RMB		RMB		RMB		US$		RMB		US$
	(In millions, except for number of shares, per share and per ADS data)
	(unaudited)
Earnings per share  - basic:
Numerator
Allocation of net income available to ordinary shareholders		11,038		2,930		20,130		2,930		5,234		762
Denominator
Weighted average ordinary shares outstanding		27,425,010		7,280,283		27,693,504		27,693,504		7,201,254		7,201,254
Denominator used for earnings per share		27,425,010		7,280,283		27,693,504		27,693,504		7,201,254		7,201,254
Earnings per share - basic		402.48		402.48		726.87		105.83		726.87		105.83
Earnings per share - diluted:
Numerator
Allocation of net income available to ordinary shareholders		11,054		2,914		20,177		2,937		5,187		755
Reallocation of net income available to ordinary shareholders as a result of conversion of Class B to Class A shares		2,914		—		5,187		755		—		—
Allocation of net income available to ordinary shareholders		13,968		2,914		25,364		3,692		5,187		755
Denominator
Weighted average ordinary shares outstanding		27,425,010		7,280,283		27,693,504		27,693,504		7,201,254		7,201,254
Conversion of Class B to Class A ordinary shares		7,280,283		—		7,201,254		7,201,254		—		—
Share-based awards		189,712		—		318,479		318,479		—		—
Denominator used for earnings per share		34,895,005		7,280,283		35,213,237		35,213,237		7,201,254		7,201,254
Earnings per share - diluted		400.29		400.29		720.30		104.88		720.30		104.88
Earnings per ADS:
Denominator used for earnings per ADS - basic		274,250,100				276,935,040		276,935,040
Denominator used for earnings per ADS - diluted		348,950,050				352,132,370		352,132,370
Earnings per ADS - basic		40.25				72.69		10.58
Earnings per ADS - diluted		40.03				72.03		10.49

The Company did not include certain stock options and restricted shares in the computation of diluted earnings per share for the nine-month periods ended September 30, 2017 and 2018 when those stock options or restricted shares were anti-dilutive for earnings per share for the respective periods.

- 31 -

BAIDU, INC.

NOTES TO THE UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

16. RELATED PARTY TRANSACTIONS

The related party transactions mainly represented online marketing services provided by the Company to Ctrip (including Qunar), the total transaction amounts for the three-month periods ended September 30, 2017 and 2018 was RMB186 million and RMB295 million (US$43 million), respectively, and the total transaction amounts for the nine-month periods ended September 30, 2017 and 2018 was RMB560 million and RMB832 million (US$121 million), respectively. Other related party transactions, including the reimbursements to Mr. Robin Yanhong Li for his use of an aircraft beneficially owned by his family for Company business purposes and to an executive officer for the rental expense for an office building owned by his family members for Company business purposes, were insignificant for each of the years presented.

As of December 31, 2017 and September 30, 2018, amounts due from/due to related parties were as follows:

	As of December 31,		As of September 30,
	2017		2018		2018
	RMB		RMB		US$
	(In millions)
Amounts due from related parties, current:
Ctrip(i)		137		158		23
Du Xiaoman(iii)		—		22,642		3,297
Other related parties(ii)		31		521		76
Total		168		23,321		3,396
Amounts due from related parties, non-current:
Du Xiaoman(iii)		—		1,982		288
Other related parties		9		12		2
Total		9		1,994		290
Amounts due to related parties, current:
Du Xiaoman(iv)		—		223		33
Ctrip(vi)		122		140		20
Other related parties(vii)		31		510		74
Total		153		873		127
Amounts due to related parties, non-current:
Du Xiaoman(v)		—		2,341		341
Other related parties(viii)		—		667		97
Total		—		3,008		438

(i) The balances mainly represent amounts arising from services the Company provided to Ctrip in the ordinary course of business.

(ii) The balances represent amounts arising from services the Company provided to its equity method investees (excluding Ctrip and Du Xiaoman) and cost method investees in the ordinary course of business, and a short-term interest-bearing loan provided to a cost method investee.

(iii) The balance represents amounts due from Du Xiaoman for unsettled payments relating to the disposal and short-term interest-bearing loans due from Du Xiaoman.

(iv) The balance represents mainly deferred revenue relating to future services to be provided.

(v) The balance represents mainly an interest-bearing loan provided by Du Xiaoman.

(vi) The balances mainly represent amounts arising from services provided by Ctrip in the ordinary course of business.

- 32 -

BAIDU, INC.

NOTES TO THE UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(vii) The balances represent amounts arising from services provided by the Company’s equity method investees other than Ctrip and Du Xiaoman and cost method investees in the ordinary course of business, and a short-term interest-bearing loan provided by a cost method investee to the Company.

(viii) The balance represents mainly deferred revenue relating to the future services to be provided by the Company to an equity method investee.

17. SEGMENT REPORTING

The operations of the Company are organized into two segments, consisting of Baidu Core and iQIYI. Baidu Core mainly provides keyword-based marketing services targeted at and triggered by internet users’ search queries, which mainly include P4P services and other online marketing service, and artificial intelligence-enabled new business initiatives. iQIYI is an online video platform with a content library that includes licensed movies, television series, cartoons, variety shows, self-produced programs and other programs. The Company derives the results of the segments directly from its internal management reporting system. The CODM reviews the performance of each segment based on its operating results and uses these results to evaluate the performance of, and to allocate resources to, each of the segments. Because substantially all of the Group’s long-lived assets and revenues are located in and derived from the PRC, geographical segments are not presented.

The table below provides a summary of the Group’s operating segment results for the three-month and nine-month periods ended September 30, 2017 and 2018.

	For the three months ended September 30, 2017
	Baidu Core			iQIYI			Intersegment eliminations & adjustments			Consolidated
	RMB			RMB			RMB			RMB
	(In millions)
	(unaudited)
Total revenues		18,342			4,951			196			23,489
Operating costs and expenses:
Cost of revenues		6,829			4,898			74			11,801
Selling, general and administrative		3,023			777			(54	)		3,746
Research and development		2,901			343			(2	)		3,242
Total operating costs and expenses		12,753			6,018			18			18,789
Operating profit (loss)		5,589			(1,067	)		178			4,700
Total other income, net		4,292			16			37			4,345
Income (loss) before income taxes		9,881			(1,051	)		215			9,045
Income taxes		1,098			1			(2	)		1,097
Net income (loss)		8,783			(1,052	)		217			7,948
Less: net income (loss) attributable to noncontrolling interests		(1	)		—			—			(1	)
Net income attributable to Baidu, Inc.		8,784			(1,052	)		217			7,949

	For the nine months ended September 30, 2017
	Baidu Core			iQIYI			Intersegment eliminations & adjustments			Consolidated
	RMB			RMB			RMB			RMB
	(In millions)
	(unaudited)
Total revenues		48,571			12,561			122			61,254
Operating costs and expenses:
Cost of revenues		18,907			12,852			(143	)		31,616
Selling, general and administrative		7,623			1,902			(28	)		9,497
Research and development		8,337			905			(17	)		9,225
Total operating costs and expenses		34,867			15,659			(188	)		50,338
Operating profit (loss)		13,704			(3,098	)		310			10,916
Total other income, net		5,266			(25	)		38			5,279
Income (loss) before income taxes		18,970			(3,123	)		348			16,195
Income taxes		2,062			2			2			2,066
Net income (loss)		16,908			(3,125	)		346			14,129
Less: net income (loss) attributable to noncontrolling interests		(9	)		—			(3	)		(12	)
Net income (loss) attributable to Baidu, Inc.		16,917			(3,125	)		349			14,141

- 33 -

BAIDU, INC.

NOTES TO THE UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

	For the three months ended September 30, 2018
	Baidu Core				iQIYI						Intersegment eliminations						Consolidated
	RMB		US$		RMB			US$			RMB			US$			RMB			US$
	(In millions)
	(unaudited)
Total revenues		21,606		3,145		6,914			1,007			(317	)		(46	)		28,203			4,106
Operating costs and expenses:
Cost of revenues		6,804		990		7,655			1,115			(241	)		(35	)		14,218			2,070
Selling, general and administrative		4,428		645		1,292			188			(79	)		(12	)		5,641			821
Research and development		3,359		489		558			81			(1	)		—			3,916			570
Total operating costs and expenses		14,591		2,124		9,505			1,384			(321	)		(47	)		23,775			3,461
Operating profit (loss)		7,015		1,021		(2,591	)		(377	)		4			1			4,428			645
Total other income (loss), net		9,687		1,409		(539	)		(78	)		(127	)		(18	)		9,021			1,313
Income (loss) before income taxes		16,702		2,430		(3,130	)		(455	)		(123	)		(17	)		13,449			1,958
Income taxes		2,059		300		(6	)		(1	)		—			—			2,053			299
Net income (loss)		14,643		2,130		(3,124	)		(454	)		(123	)		(17	)		11,396			1,659
Less: net income (loss) attributable to noncontrolling interests		334		49		16			2			(1,350	)		(197	)		(1,000	)		(146	)
Net income (loss) attributable to Baidu, Inc.		14,309		2,081		(3,140	)		(456	)		1,227			180			12,396			1,805

- 34 -

BAIDU, INC.

NOTES TO THE UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

	For the nine months ended September 30, 2018
	Baidu Core						iQIYI						Intersegment eliminations						Consolidated
	RMB			US$			RMB			US$			RMB			US$			RMB			US$
				(In millions)
				(unaudited)
Total revenues		57,751			8,409			17,961			2,615			(630	)		(92	)		75,082			10,932
Operating costs and expenses:
Cost of revenues		17,995			2,620			18,610			2,710			(472	)		(69	)		36,133			5,261
Selling, general and administrative		10,522			1,532			2,945			429			(179	)		(26	)		13,288			1,935
Research and development		9,859			1,435			1,387			202			(3	)		—			11,243			1,637
Total operating costs and expenses		38,376			5,587			22,942			3,341			(654	)		(95	)		60,664			8,833
Operating profit (loss)		19,375			2,822			(4,981	)		(726	)		24			3			14,418			2,099
Total other income (loss), net		13,199			1,921			(643	)		(93	)		(701	)		(102	)		11,855			1,726
Income (loss) before income taxes		32,574			4,743			(5,624	)		(819	)		(677	)		(99	)		26,273			3,825
Income taxes		4,260			620			(1	)		—			—			—			4,259			620
Net income (loss)		28,314			4,123			(5,623	)		(819	)		(677	)		(99	)		22,014			3,205
Less: net income (loss) attributable to noncontrolling interests		(1,241	)		(181	)		10			2			(2,247	)		(327	)		(3,478	)		(506	)
Net income (loss) attributable to Baidu, Inc.		29,555			4,304			(5,633	)		(821	)		1,570			228			25,492			3,711

- 35 -

XML

Document and Entity Information	9 Months Ended
	Sep. 30, 2018
Document And Entity Information [Abstract]
Document Type	6-K
Amendment Flag	false
Document Period End Date	Sep. 30, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q3
Trading Symbol	BIDU
Entity Registrant Name	Baidu, Inc.
Entity Central Index Key	0001329099
Current Fiscal Year End Date	--12-31

XML

Unaudited Interim Condensed Consolidated Balance Sheets ¥ in Millions, $ in Millions	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Dec. 31, 2017 CNY (¥)
Current assets:
Cash and cash equivalents	$ 2,297	¥ 15,775	¥ 11,084
Restricted cash	2	15	252
Short-term investments	12,917	88,716	89,381
Other invested securities	0	0	18,350
Accounts receivable, net of allowance of RMB316 and RMB665 (US$97) as of December 31, 2017 and September 30, 2018, respectively	794	5,455	4,571
Loans and interest receivable, current portion net of allowances of RMB660 and nil as of December 31, 2017 and September 30, 2018, respectively	0	0	23,938
Amounts due from related parties	3,396	23,321	168
Other current assets, net	976	6,700	3,425
Total current assets	20,382	139,982	151,169
Non-current assets:
Fixed assets, net	2,358	16,197	12,475
Intangible assets, net	1,271	8,732	5,467
Goodwill	2,483	17,051	15,806
Long-term investments, net	11,734	80,589	56,283
Deferred tax assets, net	153	1,049	1,532
Loans and interest receivable, non current portion net of allowances of RMB104 as of December 31, 2017 and nil as of December 31, 2017 and September 30, 2018, respectively	0	0	3,467
Amounts due from related parties	290	1,994	9
Other non-current assets	1,418	9,742	5,520
Total non-current assets	19,707	135,354	100,559
Total assets	40,089	275,336	251,728
Current liabilities (including amounts of the consolidated VIEs without recourse to the primary beneficiaries of RMB18,775 and RMB23,008 (US$3,351) as of December 31, 2017 and September 30, 2018):
Short-term loans	171	1,173	1,244
Accounts payable and accrued liabilities	4,914	33,743	27,523
Amounts due to the third-party investors	0	0	38,486
Customer advances and deposits	1,106	7,599	6,785
Deferred revenue	268	1,840	788
Deferred income	76	519	568
Long-term loans, current portion	1	10	10
Notes payable, current portion	998	6,856	6,500
Amounts due to related parties	127	873	153
Total current liabilities	7,661	52,613	82,057
Non-current liabilities (including amounts of the consolidated VIEs without recourse to the primary beneficiaries of RMB5,151 and RMB5,128 (US$747) as of December 31, 2017 and September 30, 2018):
Deferred income	7	50	73
Deferred revenue	208	1,431	0
Long-term loans	1,029	7,069	6,701
Notes payable	4,971	34,142	29,111
Deferred tax liabilities	581	3,989	3,375
Amounts due to related parties	438	3,008	0
Other non-current liabilities	28	190	39
Total non-current liabilities	7,262	49,879	39,299
Total liabilities	14,923	102,492	121,356
Commitments and contingencies
Redeemable noncontrolling interests	0	0	11,022
Equity
Additional paid-in capital	4,672	32,090	12,088
Retained earnings	18,521	127,201	102,328
Accumulated other comprehensive income	58	399	930
Total Baidu, Inc. shareholders' equity	23,251	159,690	115,346
Noncontrolling interests	1,915	13,154	4,004
Total equity	25,166	172,844	119,350
Total liabilities, redeemable noncontrolling interests and equity	40,089	275,336	251,728
Class A Ordinary Shares
Equity
Ordinary shares, value	0	0	0
Class B Ordinary Shares
Equity
Ordinary shares, value	$ 0	¥ 0	¥ 0

XML

Unaudited Interim Condensed Consolidated Balance Sheets (Parenthetical) ¥ in Millions, $ in Millions	Sep. 30, 2018 USD ($) $ / shares shares	Sep. 30, 2018 CNY (¥) shares	Dec. 31, 2017 CNY (¥) shares
Allowance for doubtful accounts receivable	$ 97	¥ 665	¥ 316
Allowance for loans and interest receivable, current	0	0	660
Allowance for loans and interest receivable, non current	0	0	104
Total current liabilities	7,661	52,613	82,057
Total non-current liabilities	7,262	49,879	39,299
Variable Interest Entity, Primary Beneficiary
Total current liabilities	3,351	23,008	18,775
Total non-current liabilities	$ 747	¥ 5,128	¥ 5,151
Class A Ordinary Shares
Common stock, par value per share | $ / shares	$ 0.00005
Common stock, shares authorized	825,000,000	825,000,000	825,000,000
Common stock, shares issued	27,654,802	27,654,802	27,614,978
Common stock, shares outstanding	27,654,802	27,654,802	27,614,978
Class B Ordinary Shares
Common stock, par value per share | $ / shares	$ 0.00005
Common stock, shares authorized	35,400,000	35,400,000	35,400,000
Common stock, shares issued	7,201,254	7,201,254	7,201,254
Common stock, shares outstanding	7,201,254	7,201,254	7,201,254

XML

Unaudited Interim Condensed Consolidated Statements Of Comprehensive Income ¥ in Millions, $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2018 USD ($) $ / shares shares	Sep. 30, 2018 CNY (¥) ¥ / shares shares	Sep. 30, 2017 CNY (¥) ¥ / shares shares	Sep. 30, 2018 USD ($) $ / shares shares	Sep. 30, 2018 CNY (¥) ¥ / shares shares	Sep. 30, 2017 CNY (¥) ¥ / shares shares
Total revenues	$ 4,106	¥ 28,203		$ 10,932	¥ 75,082
Total revenues | ¥			¥ 23,489			¥ 61,254
Operating costs and expenses:
Cost of revenues	2,070	14,218	11,801	5,261	36,133	31,616
Selling, general and administrative	821	5,641	3,746	1,935	13,288	9,497
Research and development	570	3,916	3,242	1,637	11,243	9,225
Total operating costs and expenses	3,461	23,775	18,789	8,833	60,664	50,338
Operating profit	645	4,428	4,700	2,099	14,418	10,916
Other income:
Interest income	183	1,258	876	431	2,961	2,237
Interest expense	(70)	(479)	(557)	(191)	(1,309)	(1,214)
Foreign exchange loss, net	(8)	(54)	(130)	(10)	(72)	(370)
(Loss) income from equity method investments	61	419	(73)	45	311	(267)
Others, net	1,147	7,877	4,229	1,451	9,964	4,893
Total other income, net	1,313	9,021	4,345	1,726	11,855	5,279
Income before income taxes	1,958	13,449	9,045	3,825	26,273	16,195
Income taxes	299	2,053	1,097	620	4,259	2,066
Net income	1,659	11,396	7,948	3,205	22,014	14,129
Less: net income (loss) attributable to noncontrolling interests	(146)	(1,000)	(1)	(506)	(3,478)	(12)
Net income attributable to Baidu, Inc.	1,805	12,396	7,949	3,711	25,492	14,141
Other comprehensive income:
Foreign currency translation adjustment	60	411	409	23	159	1,022
Unrealized gains on available-for-sale investments, net of reclassification	10	72	463	46	317	639
Other comprehensive income , net of tax	70	483	872	69	476	1,661
Comprehensive income	1,729	11,879	8,820	3,274	22,490	15,790
Less: comprehensive income (loss) attributable to noncontrolling interests and redeemable noncontrolling interests	(89)	(612)	(60)	(360)	(2,471)	(204)
Comprehensive income attributable to Baidu, Inc. ordinary shareholders	$ 1,818	¥ 12,491	¥ 8,880	$ 3,634	¥ 24,961	¥ 15,994
Common Class A and Class B
Earnings per shares:
Basic | (per share)	$ 51.73	¥ 355.27	¥ 242.48	$ 105.83	¥ 726.87	¥ 402.48
Diluted | (per share)	$ 51.34	¥ 352.57	¥ 240.49	$ 104.88	¥ 720.30	¥ 400.29
Weighted average number of Class A and Class B ordinary shares outstanding:
Basic	34,891,733	34,891,733	34,703,924	34,894,758	34,894,758	34,705,293
Diluted	35,158,747	35,158,747	34,991,177	35,213,237	35,213,237	34,895,005
Class A Ordinary Shares
Earnings per shares:
Basic | (per share)	$ 51.73	¥ 355.27	¥ 242.48	$ 105.83	¥ 726.87	¥ 402.48
Diluted | (per share)	$ 51.34	¥ 352.57	¥ 240.49	$ 104.88	¥ 720.30	¥ 400.29
Weighted average number of Class A and Class B ordinary shares outstanding:
Basic	27,690,479	27,690,479	27,489,083	27,693,504	27,693,504	27,425,010
Diluted	35,158,747	35,158,747	34,991,177	35,213,237	35,213,237	34,895,005
Class A Ordinary Shares | American Depositary Shares
Earnings per shares:
Basic | (per share)	$ 5.17	¥ 35.53	¥ 24.25	$ 10.58	¥ 72.69	¥ 40.25
Diluted | (per share)	$ 5.13	¥ 35.26	¥ 24.05	$ 10.49	¥ 72.03	¥ 40.03
Online Marketing Services
Total revenues	$ 3,273	¥ 22,481		$ 8,840	¥ 60,715
Total revenues | ¥			¥ 20,108			¥ 52,729
Other Revenue
Total revenues	$ 833	¥ 5,722		$ 2,092	¥ 14,367
Total revenues | ¥			¥ 3,381			¥ 8,525

XML

Unaudited Interim Condensed Consolidated Statements Of Comprehensive Income (Parenthetical)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Class A Ordinary Shares
Number of American depositary shares (ADSs) representing one Class A ordinary share	10	10	10	10

XML

Unaudited Interim Condensed Consolidated Statements of Cash Flows ¥ in Millions, $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Sep. 30, 2017 CNY (¥)	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Sep. 30, 2017 CNY (¥)
Cash flows from operating activities:
Net income	$ 1,659	¥ 11,396	¥ 7,948	$ 3,205	¥ 22,014	¥ 14,129
Adjustments to reconcile net income to net cash generated from operating activities:
Depreciation of fixed assets and computer parts	141	966	957	372	2,555	2,811
Gain on disposal of fixed assets	(1)	(5)	(9)	(4)	(29)	(22)
Amortization of intangible assets and licensed copyrights	606	4,163	2,636	1,339	9,195	6,277
Deferred income tax, net	83	571	(154)	73	504	(617)
Share-based compensation	180	1,239	841	456	3,134	2,268
Provision for doubtful accounts	21	142	484	74	507	659
Investment income	(333)	(2,287)	(790)	(885)	(6,081)	(2,230)
Gain on disposal of subsidiaries	(1,004)	(6,893)	(4,659)	(1,004)	(6,893)	(5,557)
Asset impairment	55	377	490	152	1,042	771
Loss (income) from equity method investments	(61)	(419)	73	(45)	(311)	267
Barter transaction revenue	(73)	(503)	(198)	(120)	(824)	(708)
Other noncash expenses (income)	13	88	131	(9)	(64)	592
Changes in assets and liabilities, net of effects of acquisition:
Accounts receivable	(136)	(934)	(551)	(62)	(428)	(212)
Other assets	176	1,219	404	(136)	(926)	203
Amounts due from related parties	108	739	(248)	2	16	(34)
Customer advances and deposits	99	678	762	119	817	898
Accounts payable and accrued liabilities	(17)	(118)	2,820	207	1,420	3,700
Deferred revenue	56	386	(184)	72	497	(60)
Deferred income	(5)	(37)	11	(13)	(87)	40
Amounts due to related parties	85	587	89	142	972	(122)
Net cash generated from operating activities	1,652	11,355	10,853	3,935	27,030	23,053
Cash flows from investing activities:
Acquisition of fixed assets	(323)	(2,219)	(1,297)	(829)	(5,694)	(3,590)
Acquisition of computer parts	(3)	(20)	(20)	(12)	(83)	(30)
Disposal of fixed assets	4	25	12	6	41	42
Acquisition of business, net of cash acquired	(173)	(1,188)	(51)	(173)	(1,188)	(553)
Acquisition of intangible assets	(526)	(3,616)	(3,306)	(1,395)	(9,582)	(8,180)
Purchases of held-to-maturity investments	(1,884)	(12,940)	(22,550)	(2,911)	(19,990)	(43,416)
Sales and maturities of held-to-maturity investments	1,864	12,800	15,800	5,315	36,500	35,646
Purchases of available-for-sale investments	(12,892)	(88,545)	(54,820)	(27,318)	(187,619)	(155,822)
Sales and maturities of available-for-sale investments	14,171	97,325	45,543	24,608	169,006	142,344
Purchases of other long-term investments	(365)	(2,506)	(996)	(985)	(6,763)	(1,806)
Cash distribution of long-term investments	1	8	4	3	18	13
Sales of other long-term investments	0	0	0	367	2,519	0
Disposal of subsidiaries' shares	(779)	(5,353)	1,031	(779)	(5,353)	1,387
Loans provided to related parties	(807)	(5,540)	0	(807)	(5,540)	0
Micro loan origination and disbursement	(1,192)	(8,187)	(17,375)	(5,216)	(35,824)	(37,667)
Principal payments received on micro loans	1,175	8,070	12,161	5,542	38,063	23,406
Purchases of other invested securities	(301)	(2,064)	(10,260)	(2,382)	(16,362)	(38,129)
Sales and maturities of other invested securities	265	1,823	13,472	3,633	24,949	24,363
Net cash used in investing activities	(1,765)	(12,127)	(22,652)	(3,333)	(22,902)	(61,992)
Cash flows from financing activities:
Repayment of short-term loans	(92)	(635)	(456)	(95)	(650)	(530)
Proceeds from short-term loan	113	775	536	220	1,508	551
Proceeds from long-term loans	0	0	0	104	714	299
Repayment of long-term debt	(14)	(94)	(2,339)	(14)	(94)	(2,339)
Proceeds from note issuance	0		9,926	1,380	9,479	9,926
Repayment of long-term notes	(991)	(6,807)		(991)	(6,807)	0
Payment of note issuance costs	0	(1)	(10)	(2)	(15)	(10)
Loans borrowed from related parties	313	2,150	0	313	2,150
Payment of capital lease obligation	0	0	0	0	0	(8)
Proceeds from issuance of Convertible Notes	0	0	0	0	0	8,463
Proceeds from issuance of subsidiaries' shares	6	40	0	2,284	15,689
Repurchase of ordinary shares	(482)	(3,312)	0	(482)	(3,312)	(1,723)
Capital contributions from noncontrolling interests	0	0	200	0	0	200
Proceeds from exercise of share options	1	8	127	101	692	324
Proceeds from secured borrowings from third-party financial institutions	271	1,860	4,136	1,511	10,380	8,808
Repayment of secured borrowings from third-party financial institutions	(805)	(5,529)	(480)	(1,955)	(13,426)	(1,422)
Proceeds from third-party investors for sale of financial products	0	0	25,727	2,205	15,143	82,352
Repayment to third-party investors for sale of financial products	(370)	(2,540)	(25,279)	(4,860)	(33,376)	(61,133)
Net cash generated from financing activities	(2,050)	(14,085)	12,088	(281)	(1,925)	43,758
Effect of exchange rate changes on cash, cash equivalents and restricted cash	161	1,107	(92)	327	2,251	(231)
Net increase in cash, cash equivalents and restricted cash	(2,002)	(13,750)	197	648	4,454	4,588
Cash, cash equivalents and restricted cash at beginning of the period	4,301	29,540	15,607	1,651	11,336	11,216
Cash, cash equivalents and restricted cash at end of the period	2,299	15,790	15,804	2,299	15,790	15,804
Non-cash investing and financing activities:
Disposal of subsidiaries' shares	1,602	11,000	0	1,602	11,000	0
Acquisition of licensed copyrights included in accounts payable and deferred revenue	1,032	7,085	4,254	1,032	7,085	4,254
Acquisition of licensed copyrights from nonmonetary content exchanges	$ 34	¥ 232	¥ 170	$ 64	¥ 442	¥ 537

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Basis Of Presentation

9 Months Ended

Sep. 30, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis Of Presentation

1. BASIS OF PRESENTATION

Basis of Consolidation

The unaudited interim condensed consolidated financial statements include the accounts of Baidu, Inc. (“Baidu” or the “Company”), its subsidiaries, variable interest entities (“VIEs”) and the subsidiaries of the VIEs. The Company, its subsidiaries, VIEs and subsidiaries of the VIEs are hereinafter collectively referred to as the “Group.”

As of September 30, 2018, the Company has subsidiaries incorporated in countries and jurisdictions including the People’s Republic of China (“PRC”), Hong Kong, Japan, Cayman Islands and British Virgin Islands (“BVI”).

As of September 30, 2018, the Company also effectively controls a number of VIEs through a series of contractual agreements. The significant VIEs of the Group include:

• Beijing Baidu Netcom Science Technology Co., Ltd. (“Baidu Netcom”), controlled by the Company and Baidu Online Network Technology (Beijing) Co., Ltd. (“Baidu Online”), one of the Company’s wholly-owned subsidiaries;

• Beijing Perusal Technology Co., Ltd. (“Beijing Perusal”), controlled by Baidu Online; and

• Other VIEs controlled by the Company’s subsidiaries other than Baidu Online.

The Group offers online marketing services, operates AI-powered new business initiatives, operates an online video platform offering advertising business and offers membership services of its content library. The Group’s principal geographic market is in the PRC. The Company does not conduct any substantive operations on its own, but conducts its primary business operations through its subsidiaries and VIEs in the PRC.

PRC laws and regulations prohibit or restrict foreign ownership of internet content, advertising, audio and video services, and mobile application distribution businesses. To comply with these foreign ownership restrictions, the Group operates its websites and primarily provides services subject to such restriction in the PRC through the VIEs, the PRC legal entities that were established or whose equity shares were held by the individuals authorized by the Group. The paid-in capital of the VIEs was mainly funded by the Group through loans extended to the authorized individuals who were the shareholders of the VIEs. The Group has entered into proxy agreements or powers of attorney and exclusive equity purchase option agreement with the VIEs and nominee shareholders of the VIEs through the Company or its subsidiaries (“Primary Beneficiaries”), which give the Primary Beneficiaries the power to direct the activities that most significantly affect the economic performance of the VIEs and to acquire the equity interests in the VIEs when permitted by the PRC laws, respectively. Certain exclusive agreements have been entered into with the VIEs through the Primary Beneficiaries or their wholly-owned subsidiaries in the PRC, which obligate the Primary Beneficiaries to absorb losses of the VIEs’ that could potentially be significant to the VIEs or entitle the Primary Beneficiaries to receive economic benefits from the VIEs that could potentially be significant to the VIEs. In addition, the Group has entered into certain agreements with the shareholders of the VIEs through the Primary Beneficiaries or their wholly-owned subsidiaries, including loan agreements for the paid-in capital of the VIEs and equity pledge agreements for the equity interests in the VIEs held by the shareholders of the VIEs.

Despite the lack of technical majority ownership, there exists a parent-subsidiary relationship between the Primary Beneficiaries and the VIEs through the aforementioned agreements with the shareholders of the VIEs. The shareholders of the VIEs effectively assigned all of their voting rights underlying their equity interest in the VIEs to the Primary Beneficiaries. In addition, through the other exclusive agreements, which consist of operating agreements, technology consulting and services agreements and license agreements, the Primary Beneficiaries, by themselves or their wholly-owned subsidiaries in the PRC, demonstrate their ability and intention to continue to exercise the ability to absorb losses or receive economic benefits that could potentially be significant to the VIEs. The VIEs are subject to operating risks, which determine the variability of the Company’s interest in those entities. Based on these contractual arrangements, the Company consolidates the VIEs as required by SEC Regulation S-X Rule 3A-02 and Accounting Standards Codification (“ASC”) topic 810, Consolidation, because the Company holds all the variable interests of the VIEs through the Primary Beneficiaries.

Unrecognized revenue-producing assets held by the VIEs include certain internet content provisions and other licenses, domain names and trademarks. The internet content provisions and other licenses, which are held by the VIEs that provide the relevant services, are required under relevant PRC laws, rules and regulations for the operation of Internet businesses in the PRC, and therefore are integral to the Company’s operations.

In March 2018, the contractual agreements for certain VIEs, including Baidu Netcom and Beijing Perusal, were amended to include the following terms:

a. Exclusive equity purchase and transfer option agreement

The Company has (i) an exclusive option to purchase, when and to the extent permitted under PRC laws, all or part of the equity interests in the VIE or all or part of the assets held by the VIE, (ii) an exclusive right to cause the nominee shareholders to transfer their equity interest in the VIE to the Company or any designated third party and (iii) an obligation to provide unlimited financial support to the VIEs when the VIEs become in need of any form of reasonable financial support in the normal operation of business. If the VIEs were to incur any loss and as a result cannot repay any loans from the Company, the Company will unconditionally forgive any such loans to the VIEs upon provision by the VIEs of sufficient proof for its loss and incapacity to repay.

b. Proxy Agreements/Power of Attorney

The appointment of any individuals to exercise the powers and rights assigned pursuant to the Proxy Agreement requires the approval of the Company. All the activities in relation to such powers and rights assigned are directed and approved by the Company. The shareholders of the VIEs agreed to entrust all the rights to exercise their voting power and any other rights as shareholders of the VIEs to the person(s) designated by the Company. The shareholders of the VIEs have each executed an irrevocable power of attorney to appoint the person(s) designated by the Company as their attorney-in-fact to vote on their behalf on all matters requiring shareholder approval.

As a result, the power and the rights pursuant to the Proxy Agreements have since been effectively reassigned from Baidu Online to the Company which has the power to direct the activities of the VIEs that most significantly impact the VIEs’ economic performance. The Company is also obligated to absorb the expected losses of the VIE through the financial support as described above. Therefore, the Company has replaced Baidu Online as the Primary Beneficiary of Baidu Netcom and Beijing Perusal since March 2018. As the VIEs were subject to indirect control by the Company through WFOE immediately before and direct control immediately after the contractual agreements were amended, the change of the primary beneficiary of the VIEs was accounted for as a common control transaction based on the carrying amount of the net assets transferred.

In the opinion of the Company’s legal counsel, (i) the ownership structure relating to the VIEs of the Company is in compliance with existing PRC laws and regulations; (ii) the contractual arrangements with the VIEs and their shareholders are valid, binding and enforceable, and will not result in any violation of PRC laws or regulations currently in effect; and (iii) the performance of the VIEs and their shareholders is in compliance with the articles of association and business licenses of the VIEs.

However, uncertainties in the PRC legal system could cause the Company’s current ownership structure to be found in violation of any existing and/or future PRC laws or regulations and could limit the Company’s ability, through the Primary Beneficiaries, to enforce its rights under these contractual arrangements. Furthermore, shareholders of the VIEs may have interests that are different with those of the Company, which could potentially increase the risk that they would seek to act in contrary to the terms of the aforementioned agreements. In addition, if the current structure or any of the contractual arrangements were found to be in violation of any existing or future PRC laws, the Company may be subject to penalties, which may include but not be limited to, the cancellation or revocation of the Company’s business and operating licenses, being required to restructure the Company’s operations or discontinue the Company’s operating activities. The imposition of any of these or other penalties may result in a material and adverse effect on the Company’s ability to conduct its operations. In such case, the Company may not be able to operate or control the VIEs, which may result in deconsolidation of the VIEs.

The following tables set forth the financial statement balances and amounts of the VIEs and their subsidiaries which are included in the consolidated financial statements after the elimination of intercompany balances and transactions among VIEs and their subsidiaries within the Group:

	As of December 31, 2017		As of September 30, 2018
	RMB		RMB		US$
	(In millions)
			(unaudited)
Assets
Current
Cash and cash equivalents		4,045		1,365		199
Short-term investments		2,052		1,978		288
Accounts receivable, net		3,021		3,907		569
Others		5,280		4,381		638
		14,398		11,631		1,694
Non-current
Fixed assets, net		2,845		4,310		628
Intangible assets, net		2,104		3,528		514
Long-term investments, net		10,614		18,197		2,650
Others		6,488		10,710		1,559
		22,051		36,745		5,351
Total		36,449		48,376		7,045
Third-party liabilities
Current
Accounts payable and accrued liabilities		14,073		12,586		1,833
Customer advances and deposits		2,288		2,573		375
Others		2,414		7,849		1,143
		18,775		23,008		3,351
Non-current		5,151		5,128		747
Total		23,926		28,136		4,098
Inter-company liabilities*
Inter-company payable to subsidiaries for technology consulting and service fees		2,828		1,443		210
Others		4,605		9,184		1,337
Total		7,433		10,627		1,547

	For the three months ended
	September 30, 2017			September 30, 2018
	RMB			RMB			US$
	(In millions)
	(unaudited)
Total revenues		7,954			9,444			1,375
Net loss		(139	)		(805	)		(117	)
Net cash provided by (used in) operating activities		3,640			3,146			458
Net cash provided by (used in) investing activities		102			(8,597	)		(1,252	)
Net cash provided by (used in) financing activities		(2,502	)		1,728			252

	For the nine months ended
	September 30, 2017			September 30, 2018
	RMB			RMB			US$
	(In millions)
	(unaudited)
Total revenues		21,733			24,931			3,630
Net income (loss)		891			(4,892	)		(712	)
Net cash provided by (used in) operating activities		7,595			5,101			743
Net cash provided by (used in) investing activities		(3,123	)		(17,193	)		(2,503	)
Net cash provided by (used in) financing activities		(3,331	)		9,208			1,341

* Inter-company liabilities represent payable balances of each VIE due to subsidiaries within the Group pursuant to the technology consulting and service agreements. Other payables to non-VIE subsidiaries within the Group were included in third-party liabilities.

As of September 30, 2018, there was no pledge or collateralization of the VIEs’ assets other than those pledged under the equity pledge agreements with respect to the VIE contractual agreements. The amount of the net assets of the VIEs was RMB9.6 billion (US$1.4 billion) as of September 30, 2018. The creditors of the VIEs’ third-party liabilities did not have recourse to the general credit of the Company in the normal course of business. The Company did not provide or intend to provide financial or other supports not previously contractually required to the VIEs during the years presented.

Basis of Presentation

The unaudited interim condensed consolidated financial statements are prepared in accordance with United States generally accepted accounting principles (“U.S. GAAP”).

Unaudited Interim Condensed Consolidated Financial Statements

In the opinion of management, the unaudited interim condensed consolidated financial statements, which are comprised of the condensed consolidated balance sheet of the Company as of September 30, 2018, the condensed consolidated statements of comprehensive income and the condensed consolidated statements of cash flows for the three-month and nine-month periods ended September 30, 2018 and 2017, reflect all adjustments, consisting of normal and recurring adjustments, necessary to present fairly the Company’s consolidated financial position as of September 30, 2018, the Company’s consolidated results of operations and consolidated cash flows for the three-month and nine-month periods ended September 30, 2018 and 2017. Interim period results are not necessarily indicative of results of operations or cash flows for a full-year period. The consolidated balance sheet data as of December 31, 2017 was derived from the Company’s audited financial statements, but does not include all disclosures required by U.S. GAAP for annual financial statements. These financial statements and the notes thereto should be read in conjunction with the Company’s audited consolidated financial statements for the year ended December 31, 2017.

Use of Estimates

The preparation of the unaudited interim condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the period. Management evaluates estimates, including those related to the standalone selling prices of performance obligations of revenue contracts, accounts receivable allowances, credit loss allowance for micro loan receivables, fair values of options to purchase the Company’s or its subsidiaries’ ordinary shares, fair values of certain debt and equity investments, amortization and impairment of licensed copyrights, impairment of long-lived assets, long-term investments and goodwill, the purchase price allocation and fair value of noncontrolling interests with respect to business combinations and acquisition of equity method investees, deferred tax valuation allowance, and redeemable noncontrolling interests, among others. Management bases the estimates on historical experience and on various other assumptions that are believed to be reasonable, the results of which form the basis for making judgments about the carrying values of assets and liabilities. Actual results could differ from these estimates.

Currency Translation for Financial Statements Presentation

Translations of amounts from RMB into US$ for the convenience of the reader have been calculated at the exchange rate of RMB6.8680 per US$1.00 on September 28, 2018, the last business day in the third quarter of 2018, as published on the website of the United States Federal Reserve Board. No representation is made that the RMB amounts could have been, or could be, converted into U.S. dollars at such rate.

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Summary of Significant Accounting Policies

9 Months Ended

Sep. 30, 2018

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

The following accounting policies do not include all of the significant accounting policies of the Company, which were included in, and should be read in conjunction with, the audited consolidated financial statements as of and for the year ended December 31, 2017.

Cash and Cash Equivalents

Cash and cash equivalents primarily consist of cash, money market funds, and investments in interest bearing demand deposit accounts, time deposits and highly liquid investments with original maturities of three months or less from the date of purchase and are stated at cost which approximates their fair value.

Restricted Cash

Restricted cash mainly consists of the cash reserved in escrow accounts at certain banks as online payment service deposits.

In November 2016, the FASB issued Accounting Standards Update No. 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash, which requires companies to include amounts generally described as restricted cash and restricted cash equivalents in cash and cash equivalents when reconciling beginning-of-period and end-of-period total amounts presented in the statement of cash flows. The Company adopted the new standard effective January 1, 2018, using the retrospective transition method. All restricted cash was presented on the face of consolidated balance sheet as “Restricted cash;” there is no restricted cash or restricted cash equivalents presented elsewhere on the consolidated balance sheet.

Loan and Interest Receivables, net of allowance

Loan and interest receivables consist primarily of micro loans to individual borrowers. Such amounts are recorded at the principal net of allowance for credit losses relating to micro loans, and include accrued interest receivable as of the balance sheet date. The loan periods granted by the Company to the borrowers related to the micro loans generally range from one month to thirty-six months. The cash flows related to micro loans are included within the cash flows from investing activities category in the consolidated statement of cash flows. Allowance for credit losses relating to micro loans represent the Company’s best estimate of the losses inherent in the outstanding portfolio of loans. Judgment is required to determine the allowance amounts and whether such amounts are adequate to cover potential credit losses, and periodic reviews are performed to ensure such amounts continue to reflect the best estimate of the losses inherent in the outstanding portfolio of debts. The Company bases the allowance for loan and interest receivables credit losses primarily on historical loss experience using a roll rate-based model applied to the loan and interest receivables portfolios. The Company considers many factors, including but not limited to, the age of the amounts due, the payment history, the month of origination, the purpose of the loans, creditworthiness, financial conditions of the borrower, terms of the loans, regulatory environment, and the general economic conditions. In August, the Company completed the divestiture of its financial services business. Consequently, the loan and interest receivable balances were derecognized from the consolidated balance sheet upon disposal (Note 4).

Licensed Copyrights

Licensed copyrights consist of professionally-produced content such as movies, television series, variety shows, sports and other video content acquired from external parties. The license fees are capitalized and, unless prepaid, a corresponding liability recorded when cost of the content is known, the content has been accepted by us in accordance with the conditions of the license agreement and the content is available for its first showing on our internet platform. Licensed copyrights are carried at the lower of unamortized cost or net realizable value. The current and non-current portions of licensed copyrights of video content are recorded in “Other current assets, net” or “Intangible assets, net,” respectively. The licensed copyrights include non-exclusive licensed copyrights and exclusive licensed copyrights. With non-exclusive licensed copyrights, the Company has the right to broadcast the contents only on its internet platform. With exclusive licensed copyrights, in addition to the broadcasting rights, the Company also has the right to sublicense the contents to third parties.

Non-exclusive licensed copyrights, mainly comprising of newly released movies, television series and seasonal variety shows, are generally amortized using an accelerated method based on historical viewership consumption patterns. Other non-exclusive licensed copyrights, mainly comprising of library movies, television series and variety shows and certain non-episodic features, are amortized on a straight-line basis, as the consumption pattern based on historical viewing data supports this amortization method. Estimates of the consumption patterns for licensed copyrights are reviewed periodically and revised, if necessary. The major factors that impact the viewership consumption patterns include film box office, ratings for television series and variety shows, user traffic on our platforms, placement schedule, user tastes and preferences, emerging cultural trends, merchandising and marketing efforts. When the amortization pattern is revised, it is accounted for as a change in accounting estimate prospectively in accordance with ASC 250 (“ASC 250”), Accounting Changes and Error Corrections.

The purchase cost of exclusive licensed copyrights includes a broadcasting right and a right to sublicense to third parties. The Company allocates the content cost to these two rights when the exclusive licensed copyrights are initially recognized, based on the relative proportion of our estimate of the total revenues that will be generated by each right. For the broadcasting right, which is the portion of an exclusive licensed copyright that generates direct and indirect advertising and membership revenues, the content costs are amortized in accordance with ASC 920-350 (“ASC 920-350”), Entertainment-Broadcasters: Intangibles—Goodwill and Other, using the same method as non-exclusive licensed copyrights described above. For the right to sublicense to third parties, which is the portion of an exclusive licensed copyright that generates direct revenues, the content costs are amortized in accordance with ASC topic 926 (“ASC 926”), Entertainment—Films using an individual-film-forecast-computation method, which amortizes such costs based on the ratio of the actual sublicensing revenues generated for the current period to the total sublicensing revenues estimated to be generated by the sublicensing right. The Company revisits the forecasted total direct revenues on a periodic basis and any resulting changes to such estimates and the resulting amortization expense are accounted for prospectively as a change in accounting estimate in accordance with ASC 250.

On a periodic basis, the Company evaluates the program usefulness of the broadcasting rights of its licensed copyrights and record such rights at the lower of unamortized cost or estimated net realizable value pursuant to the guidance in ASC 920-350. When there is a change in the expected usage of licensed copyrights, the Company estimates net realizable value of licensed copyrights to determine if any impairment exists.

Net realizable value is determined by estimating the expected cash flows generated from the provision of online advertising and membership services, less any direct costs, over the remaining useful lives of non-exclusive licensed copyrights. The Company estimates advertising and membership cash flows for each category of the content. Estimates that impact advertising and membership cash flows include anticipated levels of demand for our online advertising and membership services and the expected selling prices of our advertisements and membership. For the right to sublicense to third parties, the Company assesses recoverability in accordance with ASC 926-20, Entertainment—Films: Other Assets—Film Costs.

Investments

Short-term investments

All highly liquid investments with original maturities of greater than three months, but less than twelve months, are classified as short-term investments. Investments that are expected to be realized in cash during the next twelve months are also included in short-term investments.

The Company accounts for short-term debt investments in accordance with ASC topic 320 (“ASC 320”), Investments — Debt Securities. The Company classifies the short-term investments in debt as “held-to-maturity” or “available-for-sale,” whose classification determines the respective accounting methods stipulated by ASC 320. Dividend and interest income, including amortization of the premium and discount arising at acquisition, for all categories of investments in securities are included in earnings. Any realized gains or losses on the sale of the short-term investments are determined on a specific identification method, and such gains and losses are reflected in earnings during the period in which gains or losses are realized. Debt investments not classified as trading or as held-to-maturity are classified as available-for-sale debt securities. Available-for-sale debt investments are reported at fair value, with unrealized gains and losses recorded in “Accumulated other comprehensive income.” An impairment loss on the available-for-sale debt securities is recognized in the consolidated statements of comprehensive income when the decline in value is determined to be other-than-temporary.

The securities that the Company has the positive intent and the ability to hold to maturity are classified as held-to-maturity securities and stated at amortized cost. For individual securities classified as held-to-maturity securities, the Company evaluates whether a decline in fair value below the amortized cost basis is other-than-temporary in accordance with the Company’s accounting policy and ASC 320. The other-than-temporary impairment loss is recognized in earnings equal to the entire excess of the debt security’s amortized cost basis over its fair value at the balance sheet date of the reporting period for which the assessment is made.

In accordance with ASC 320, the securities that are bought and held principally for the purpose of selling them in the near term are classified as trading securities. Unrealized holding gains and losses for trading securities are included in earnings.

Other invested securities

Other invested securities represent investments purchased by the Company for its financial services business which are resold to third-party investors. These transactions do not meet the requirements of asset derecognition in accordance with ASC topic 860 (“ASC 860”), Transfers and Servicing. The Company records the proceeds related to these transactions as secured borrowings included in “Amounts due to the third-party investors” on the consolidated balance sheets, and assets pledged are included in “Other invested securities” on the consolidated balance sheets. Other invested securities are issued by financial institutions and have a variable rate of return that is indexed to the performance of underlying assets. The Company initially records these investments at cost, which approximates its fair value at inception and subsequently records these investments at fair value. Changes in the fair value are reflected in earnings. The Cash flows related to purchases and maturities of other invested securities are classified as cash flows from investing activities, while proceeds and payments related to the sales and purchases of financial products are classified as cash flows from financing activities in the consolidated statements of cash flows. All other invested securities balances were derecognized from the consolidated balance sheet upon disposal (Note 4).

Long-term investments

The Company’s long-term investments consist of equity investments with readily determinable fair value, equity investments without readily determinable fair value, equity method investments, and other investments accounted for at fair value.

Prior to adopting ASC topic 321 (“ASC 321”), Investments — Equity Securities on January 1, 2018, the Company carries at cost its investments in investees which do not have readily determinable fair value and the Company does not have significant influence in accordance with ASC subtopic 325-20 (“ASC 325-20”), Investments-Other: Cost Method Investments. The Company only adjusts the carrying value of such investments for other-than-temporary declines in fair value and distributions of earnings that exceed the Company’s share of earnings since its investment.

Management regularly evaluates the impairment of the cost method investments based on the performance and financial position of the investee as well as other evidence of market value. Such evaluation includes, but is not limited to, reviewing the investee’s cash position, recent financing, projected and historical financial performance, cash flow forecasts and financing needs. An impairment loss is recognized in earnings equal to the excess of the investment’s cost over its fair value at the balance sheet date of the reporting period for which the assessment is made. The fair value would then become the new cost basis of the investment.

The Company adopted ASC 321 on January 1, 2018 and the cumulative effect of RMB1.9 billion (US$270 million) was recorded as an adjustment to the opening retained earnings. Equity investments, except for those accounted for under the equity method, those that result in consolidation of the investee and certain other investments, are measured at fair values, and any changes in fair value are recognized in earnings. For equity securities without readily determinable fair values and do not qualify for the existing practical expedient in ASC 820 (“ASC 820”), Fair Value Measurements and Disclosures to estimate fair value using the net asset value per share (or its equivalent) of the investment, the Company elected to use the measurement alternative to measure those investments at cost, less any impairment, plus or minus changes resulting from observable price changes in orderly transactions for identical or similar investments of the same issuer, if any. Equity securities with readily determinable fair values are measured at fair values, and any changes in fair value are recognized in earnings. Unrealized gains before adopting ASC 321 were recorded in “Accumulated other comprehensive income,” which has been reclassified to the opening balance of retained earnings.

Investments in entities in which the Company can exercise significant influence but does not own a majority equity interest or control are accounted for using the equity method of accounting in accordance with ASC topic 323 (“ASC 323”), Investments-Equity Method and Joint Ventures. Under the equity method, the Company initially records its investment at cost and the difference between the cost of the equity investee and the fair value of the underlying equity in the net assets of the equity investee is recognized as equity method goodwill, which is included in the equity method investment on the consolidated balance sheets. The Company subsequently adjusts the carrying amount of its investment to recognize the Company’s proportionate share of each equity investee’s net income or loss into earnings. The Company will discontinue applying the equity method if an investment (and additional financial supports provided to the investee, if any) has been reduced to zero. When the Company has other investments in its equity-method investee and is not required to advance additional funds to that investee, the Company would continue to report its share of equity method losses in its statement of comprehensive income after its equity-method investment in ordinary shares has been reduced to zero, to the extent of and as an adjustment to the adjusted basis of the Company’s other investments in the investee. Such losses are first applied to those investments of a lower liquidation preference before being further applied to the investments of a higher liquidation preference. The Company evaluates the equity method investments for impairment under ASC 323. An impairment loss on the equity method investments is recognized in earnings when the decline in value is determined to be other-than-temporary.

In accordance with ASC 946-320 Financial Services—Investment Companies, Investments—Debt and Equity Securities, the Company accounts for long-term equity investments in unlisted companies held by consolidated investment companies at fair value. These investments were initially recorded at their transaction price net of transaction costs, if any. Fair value of these investments are re-measured periodically in accordance with ASC 820. These equity investments are classified within Level 3 in the fair value hierarchy, and changes in fair value are recorded in the consolidated statements of comprehensive income in the period the change occurs.

Revenue Recognition

The Company adopted ASC topic 606 (“ASC 606”), Revenue from Contracts with Customers from January 1, 2018, using the modified retrospective method. Revenues for the three-month and nine-month periods ended September 30, 2018 were presented under ASC 606, and revenues for the three-month and nine-month periods ended September 30, 2017 were not adjusted and continue to be presented under ASC topic 605, Revenue Recognition. The cumulative effect of adopting ASC 606 resulted in an increase RMB967 million (US$141 million) to the opening balance of retained earnings at January 1, 2018.

Commencing on January 1, 2018, the Company recognizes revenue in accordance with ASC 606. Revenue is recognized when control of promised goods or services is transferred to the Company’s customers in an amount of consideration to which an entity expects to be entitled to in exchange for those goods or services. Starting from January 1, 2018, pursuant to ASC 606, value added taxes (“VAT”) was reclassified from cost of revenue to net against revenues. The Company recognized VAT of RMB1.3 billion and RMB1.7 billion (US$244 million) for the three-month periods ended September 30, 2017 and 2018, respectively, and RMB3.4 billion and RMB 4.5 billion (US$652 million) for the nine-month periods ended September 30, 2017 and 2018, respectively.

The following table presents the Company’s revenues disaggregated by revenue source:

	For the three months ended
	September 30, 2017		September 30, 2018		September 30, 2018
	RMB		RMB		US$
	(In millions)
	(unaudited)
Online marketing		20,108		22,481		3,273
iQIYI membership service		1,697		2,852		415
iQIYI content distribution		276		835		122
Interest income earned from provision of financial services		495		408		59
Others		913		1,627		237
Other revenue		3,381		5,722		833
Total revenue		23,489		28,203		4,106

	For the nine months ended
	September 30, 2017		September 30, 2018		September 30, 2018
	RMB		RMB		US$
	(In millions)
	(unaudited)
Online marketing		52,729		60,715		8,840
iQIYI membership service		4,607		7,421		1,081
iQIYI content distribution		958		1,641		239
Interest income earned from provision of financial services		1,029		1,724		251
Others		1,931		3,581		521
Other revenue		8,525		14,367		2,092
Total revenue		61,254		75,082		10,932

The Company’s revenue recognition policies effective on the adoption date of ASC 606 are as follows:

Performance-based online marketing services

Cost-per-click

The Company’s auction-based pay-for-performance (“P4P”) platform enables a customer to place its website link and related description on the Company’s search result list on the platform which could be accessed through personal computer or mobile devices. Customers make bids on keywords based on how much they are willing to pay for each click to their listings in the search results listed on the Company’s platform and the relevance between the keywords and the customer’s businesses. Internet users’ search of the keyword will trigger the display of the listings. The ranking of the customer’s listing depends on both the bidding price and the listing’s relevance to the keyword searched. Customers pay the Company only when a user clicks on one of its website links.

Besides the Company’s traditional auction-based P4P services, the Company also displays in-feed marketing to targeted users through Baidu Feed. Customers pay the Company when a targeted user clicks the in-feed marketing and are directed to its platforms.

Revenue is recognized when all of the revenue recognition criteria set forth in ASC 606 are met, which is generally when a user clicks on one of the customer-sponsored links or in-feed marketing.

Other performance-based online marketing services

To the extent the Company provides online marketing services based on performance criteria other than cost-per-click, such as the number of downloads (and user registration) of mobile apps and the pre-determined ratios of completed transaction volumes, revenue is recognized when the specified performance criteria are met along with the satisfaction of other applicable revenue recognition criteria as prescribed by ASC 606.

Display advertisements

The Company provides display-based online advertising services to its customers by integrating text description, image and video, and displaying the advertisement in a prominent position of the search result page, vertical search products or Baidu Feed. The Company recognizes revenue in accordance with ASC 606, on a pro-rata basis over the contractual term for cost per time advertising arrangements commencing on the date the customer’s advertisement is displayed on the Company’s platform, or based on the number of times that the advertisement has been displayed for cost per thousand impressions advertising arrangements.

Online marketing services involving Baidu Union

Baidu Union is a program through which the Company expands distribution of its customers’ sponsored links or advertisements by leveraging the traffic of Baidu Union members’ internet properties. The Company makes payments to Baidu Union members for the acquisition of traffic. The Company is the principal in these transactions, as it is primarily responsible for fulfilling the service, has discretion in establishing pricing and controls the advertising inventory before the transfer to customers. Therefore, revenue is recognized on a gross basis on the amount of fees it billed to its customers. Payments made to Baidu Union members are recorded as traffic acquisition costs, which are included in “Cost of revenues” in the consolidated statements of comprehensive income.

Membership services

The Company offers membership services that provide subscribing members access to stream a library of premium content in exchange for upfront non-refundable membership fees. Membership periods range from one month to twelve months. The receipt of membership fees is initially recorded as deferred revenue, and revenue is recognized ratably over the membership period when services are rendered.

Content distribution

The Company generates revenues from sub-licensing content licensed from third party vendors for cash and through nonmonetary exchanges, mainly with other online video broadcasting companies. The exclusive licensing agreements the Company enters into with vendors has a definitive license period and provides the Company the rights to sub-license these contents to other third parties. The Company enters into a non-exclusive sub-license agreement with a sub-licensee for a period that falls within the original exclusive license period. For cash sub-licensing transactions, the Company receives the sub-license fee upfront under the sub-licensing arrangements and does not have any future obligation once it has provided the underlying content to the sub-licensee (which is provided at or before the beginning of the sub-license period). The sub-license fees are recognized in accordance with ASC 606 and represents a license of functional intellectual property that grants the right to use the Company’s licensed copyrights, and revenue is recognized when the licensed copyright is made available for the customer’s use and benefit. The attributable cost of cash sublicensing transactions are recognized as cost of revenues through the amortization of the sublicensing right component of the exclusive licensed copyright, computed using the individual-film-forecast-computation method in accordance with ASC 926.

The Company enters into nonmonetary transactions to exchange online broadcasting rights of licensed copyrights with other online video broadcasting companies from time to time. The exchanged licensed copyrights provide rights for each party to broadcast the licensed copyrights received on its own website only. Each transferring party retains the right to continue broadcasting the exclusive content on its own website and/or sublicense the rights to the content it surrendered in the exchange. The Company accounts for these nonmonetary exchanges in accordance with ASC 606, and records the transaction based on the fair value of the asset received starting from January 1, 2018. Barter sublicensing revenue are recognized in accordance with the same ASC 606 criteria above. The Company estimates the fair value of the licensed copyrights received based on various factors, including broadcasting schedule, cast and crew, theme and popularity, box office and market share of counterparties to the exchange.

The Company recognized barter sublicensing revenues of RMB198 million and RMB503 million (US$73 million) and related costs of RMB193 million and RMB523 million (US$76 million) for the three-month periods ended September 30, 2017 and 2018, respectively. The Company recognized barter sublicensing revenues of RMB708 million and RMB824 million (US$120 million) and related costs of RMB596 million and RMB818 million (US$119 million) for the nine-month periods ended September 30, 2017 and 2018, respectively.

Financial services

The Company offers financial services which include provision of installment payment services to consumers and wealth management services to third-party investors. Interest income earned from provision of financial services is reported as “Other revenues” and reported on a net basis after deduction of related interest costs incurred. The Company recognized gross interest income of RMB1.1 billion and RMB616 million (US$90 million) and interest costs of RMB580 million and RMB208 million (US$30 million) for the three-month periods ended September 30, 2017 and 2018, respectively. The Company recognized gross interest income of RMB2.3 billion and RMB 3.3 billion (US$483 million) and interest costs of RMB1.2 billion and RMB1.6 billion (US$232 million) for the nine-month periods ended September 30, 2017 and 2018, respectively. The financial services business was disposed during the three-months ended September 30, 2018 (Note 4).

Barter transactions

The Company engages in certain barter transactions other than licensed copyrights of video contents, such as advertising, from time to time, and in such situations, follows the guidance set forth in ASC 606. The transaction price of the nonmonetary consideration is measured at fair value at contract inception. If fair value cannot be reasonably estimated, the Company measures the consideration indirectly by reference to the standalone selling price of the services promised to the customer in exchange for the consideration.

Other revenue recognition related policies

In accordance with ASC 606, for arrangements that include multiple performance obligations, primarily for advertisements to be displayed in different spots, placed under different forms and displayed at different times, the Company would evaluate all the performance obligations in the arrangement to determine whether each performance obligation is distinct. Consideration is allocated to each performance obligation based on its standalone selling price. If a promised good or service does not meet the criteria to be considered distinct, it is combined with other promised goods or services until a distinct bundle of goods or services exists.

When either party to a revenue contract has performed, the Company presents the contract in the consolidated balance sheets as a contract asset or a contract liability, depending on the relationship between the entity’s performance and the customer’s payment. Contract liabilities were presented as deferred revenue on the consolidated balance sheets. The increase in deferred revenue as compared to the year ended December 31, 2017 is a result of the increase in consideration received from the Company’s customers.

The Company does not disclose the value of unsatisfied performance obligations for (i) contracts with an original expected length of one year or less and (ii) contracts for which the Company recognizes revenue at the amount to which it has the right to invoice for services performed.

The opening balance of contract assets were RMB832 million as of January 1, 2018. As of September 30, 2018, contract assets of RMB1.6 billion (US$233 million) were recognized and included in “Other current assets, net” on the consolidated balance sheet.

The Company provides sales incentives to customers which entitle them to receive reductions in the price of the online marketing services by meeting certain cumulative consumption requirements. The Company accounts for these incentives granted to customers as variable consideration in accordance with ASC 606. The amount of variable consideration is measured based on the most likely amount of incentives to be provided to customers.

Fair Value Measurements of Financial Instruments

Financial instruments are in the form of cash and cash equivalents, restricted cash, short-term investments, other invested securities, accounts receivable, loan and interest receivables, amounts due from and due to related parties, other receivables, long-term investments, short-term loans, accounts payable and accrued liabilities, customer advances and deposits, derivative instruments, notes payable and long-term loans. The carrying amounts of these financial instruments, except for long-term equity investments without readily determinable fair values, long-term equity method investments, long-term notes payable and long-term loans, approximate their fair values because of their generally short maturities. Long-term equity investments with readily determinable fair values, other invested securities, investments accounted for at fair value, and derivative instruments are adjusted to fair value at each reporting date. The carrying amounts of long-term loans approximate fair values as the related interest rates approximate rates currently offered by financial institutions for similar debt instruments of comparable maturities. Fair value of notes payable is extracted directly from the quoted market price.

Segment Reporting

Starting from April 2017, Search Services and Transaction Services were combined into one segment, namely, Baidu Core. The change in reportable segments reflects the Company’s strategic shift and the operational change to de-emphasize its transaction services business and shift such resources to support its online marketing services. As of December 31, 2017 and September 30, 2018, the Company had two reportable segments, Baidu Core and iQIYI. Baidu Core mainly provides keyword-based marketing services targeted at and triggered by internet users’ search queries, which mainly include P4P services, other online marketing services, and artificial intelligence-enabled new business initiatives. iQIYI is an online entertainment service provider that, offers original, professionally produced and partner-generated content on its platform. In early April 2018, iQIYI completed its initial public offering (“IPO”) on the Nasdaq Global Market.

The Company’s chief executive officer, who has been identified as the chief operating decision marker (“CODM”) reviews the operating results of Baidu Core and iQIYI in order to allocate resources and assess the Company’s performance. Accordingly, the financial statements include segment information which reflects the current composition of the reportable segments in accordance with ASC topic 280, Segment Reporting.

Goodwill

The Company assesses goodwill for impairment in accordance with ASC subtopic 350-20 (“ASC 350-20”), Intangibles – Goodwill and Other: Goodwill, which requires goodwill to be tested for impairment at the reporting unit level at least annually and more frequently upon the occurrence of certain events, as defined by ASC 350-20. As of December 31, 2017 and September 30, 2018, goodwill was allocated to the Company’s two reporting units, Baidu Core and iQIYI, respectively.

Contingencies

The Company records accruals for certain of its outstanding legal proceedings or claims when it is probable that a liability will be incurred and the amount of loss can be reasonably estimated. The Company evaluates, on a quarterly basis, developments in legal proceedings or claims that could affect the amount of any accrual, as well as any developments that would make a loss contingency both probable and reasonably estimable. The Company discloses the amount of the accrual if it is material.

When a loss contingency is not both probable and estimable, the Company does not record an accrued liability but discloses the nature and the amount of the claim if material. However, if the loss (or an additional loss in excess of the accrual) is at least reasonably possible, then the Company discloses an estimate of the loss or range of loss, if such estimate can be made and is considered material, or discloses that an estimate cannot be made. The assessment of whether a loss is probable or reasonably possible, and whether the loss or a range of loss is estimable, often involves complex judgments about future events. Management is often unable to estimate the loss or a range of loss, particularly where (i) the damages sought are indeterminate, (ii) the proceedings are in the early stages, or (iii) there is lacks clear or consistent interpretation of laws specific to the industry-specific complaints across different jurisdictions. In such cases, there are considerable uncertainties regarding the timing or ultimate resolution of such matters, including eventual loss, fine, penalty or business impact, if any.

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Business Combination

9 Months Ended

Sep. 30, 2018

Business Combinations [Abstract]

Business Combination

3. BUSINESS COMBINATION

The total purchase consideration for business combinations in aggregate was RMB2.4 billion (US$ 353 million) including RMB1.3 billion (US$192 million) in cash for the nine-month period ended September 30, 2018, among which RMB1.9 billion (US$271 million) was allocated to goodwill, RMB958 million (US$139 million) was allocated to intangible assets, RMB491 million (US$73 million) was allocated to net assets other than goodwill and intangible assets and RMB889 million (US$130 million) was allocated to noncontrolling interest. The total purchase consideration for business combinations was RMB721 million for the nine-month period ended September 30, 2017. The Company expects to achieve significant synergies from such acquisitions which it plans to complement its existing businesses. The acquired entities were considered insignificant, both individually and in aggregate. The results of the acquired entities’ operations have been included in the Company’s consolidated financial statements since their respective dates of acquisition.

Neither the results of operations since the acquisition dates nor the pro forma results of operations of the acquirees were presented because the effects of these business combinations, both individually and in aggregate, were not significant to the Company’s consolidated results of operations.

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Investments

9 Months Ended

Sep. 30, 2018

Debt Securities, Trading, Gain (Loss) [Abstract]

Investments

4. INVESTMENTS

Short-term Investments

As of September 30, 2018, the Company’s short-term investments comprised of only debt securities. All of the short-term held-to-maturity investments were deposits in commercial banks with maturities of less than one year and the Company has the positive intent and ability to hold those securities to maturity. The short-term available-for-sale investments include wealth management products issued by commercial banks and other financial institutions.

During the three-month periods ended September 30, 2017 and 2018, the Company recorded interest income from its short-term investments of RMB823 million and RMB1.1 billion (US$160 million), respectively in earnings.

During the nine-month periods ended September 30, 2017 and 2018, the Company recorded interest income from its short-term investments of RMB2.1 billion and RMB2.7 billion (US$391 million), respectively in earnings.

Long-term Investments

Equity investments at fair value with readily determinable fair value

Equity investments at fair value with readily determinable fair value represent investments in the equity securities of publicly listed companies for which the Company does not have significant influence. The equity investments were accounted for as available-for-sale equity investments prior the adoption of ASC 321. Starting in January 1, 2018 after adopting ASC 321, these investments were classified as equity investments at fair value with readily determinable fair value and reported at fair value. Changes in fair value were recognized in earnings, instead of accumulated other comprehensive income.

Equity investments at fair value without readily determinable fair value

Equity investments at fair value without readily determinable fair value were accounted as cost method investments prior to adopting ASC 321. As of December 31, 2017, the carrying amount of the Company’s cost method investments was RMB21.8 billion. In accordance with ASC 321, the Company elected to use the measurement alternative to measure such investments at cost, less any impairment, plus or minus changes resulting from observable price changes in orderly transactions for identical or similar investments of the same issuer, if any. As of September 30, 2018, the carrying amount of the Company’s equity investments without readily determinable fair value was RMB27.6 billion (US$4.0 billion), net of RMB1.2 billion (US$175 million) in accumulated impairment. As of September 30, 2018, RMB4.2 billion (US$609 million) of equity investments were measured at fair value using the measurement alternative based on observable price changes in orderly transactions for an identical or similar investment of the same issuer. RMB981 million (US$143 million ) and RMB4.2 billion (US$609 million) in unrealized gains and losses were recognized in earnings during the three-month and nine-month periods ended September 30, 2018, respectively.

For the three-month and nine-month periods ended September 30, 2018, RMB 298 million (US$43 million) and RMB348 million (US$51 million), respectively, of impairment charges were recognized on equity investments without readily determinable fair value.

Unrealized gains and losses of equity securities without readily determinable fair values for the three-month and nine-month periods ended September 30, 2018 were as follows:

	For the three months ended September 30, 2018						For the nine months ended September 30, 2018
	RMB			US$			RMB			US$
	(In millions)
Gross unrealized gains (upward adjustments)		1,059			154			6,463			941
Gross unrealized losses (downward adjustments excluding impairment)		(78	)		(11	)		(2,280	)		(332	)

Realized and unrealized gains and losses for equity securities without readily determinable fair values recognized for the three-month and nine-month periods ended September 30, 2018 were as follows:

	For the three months ended September 30, 2018				For the nine months ended September 30, 2018
	RMB		US$		RMB		US$
	(In millions)
Net realized gains and losses on equity securities sold		—		—		124		18
Net unrealized gains and losses on equity securities held		981		143		4,183		609
Total net gains recognized in other income		981		143		4,307		627

Equity method investments

The carrying amounts of the Company’s equity method investments were RMB31.4 billion and RMB44.7 billion (US$6.5 billion) as of December 31, 2017 and September 30, 2018, respectively. There was no impairment recognized for equity method investments during the three-month periods ended September 30, 2017 and 2018. For the nine-month periods ended September 2017 and 2018, impairment charges recognized for equity method investments, were nil and RMB48 million (US$7 million), respectively.

Disposal of financial services business

On April 29, 2018, the Company entered into definitive agreements with certain third-party investors relating to the disposal of its wholly-owned financial services business, which is conducted through various legal entities of the Group. The Company conducted a series of legal restructuring and recapitalization of entities conducting the financial services business (“Du Xiaoman”), which were accounted for as transactions under common control. Du Xiaoman provides consumer credit, wealth management and other financial services.

In August 2018, Du Xiaoman issued preferred shares to third-party investors, which resulted in the Company becoming a minority shareholder of the financial services business. Accordingly, Du Xiaoman was deconsolidated from the Group and a disposal gain of RMB6.0 billion (US$874 million) was recognized in “Other income, net.”

The disposal of the financial services business did not meet the definition of a discontinued operation in accordance with ASC subtopic 205-20, Presentation of Financial Statements—Discontinued Operations, as it did not represent a strategic shift that has a major effect on the Group’s operations and financial results.

The Company’s retained an equity interest of 41% on a fully diluted basis, and accounted for Du Xiaoman as an equity method investment in accordance with ASC 323, as it retained significant influence over the divestiture. The Company adopted a one-quarter lag in reporting on its share of income (loss) from Du Xiaoman.

Disposal of Global DU business

In July 2018, the Company completed the disposal of its global ad and tools business (“Global DU business”) which was operated in various subsidiaries and VIEs of the Group to third-party companies, and recognized a total disposal gain of RMB893 million (US$130 million) in “Other income, net.” The Company’s retained interest in the divestiture as accounted for as equity method investment.

The fair values of the Company’s retained interest in Du Xiaoman and Global DU business were estimated by using the income approach or market approach. Inputs used in these methodologies primarily included future cash flows, discount rate, and the selection of comparable companies operating in similar businesses. Transactions with these equity investees are aggregately disclosed in Note 6.

Investment accounted for at fair value

Long-term equity investments in unlisted companies held by consolidated investment companies are accounted for at fair value in accordance with ASC subtopic 946-320 Financial Services — Investment Companies, Investments — Debt and Equity Securities. These investments are carried at fair value with realized or unrealized gains and losses recorded in “Other income, net” in the consolidated statements of comprehensive income.

The methodology used in the determination of fair values for held-to-maturity debt investments, available-for-sale debt investments, equity investments with readily determinable fair values and other investment securities accounted for at fair value were disclosed in Note 6.

Investments classification as of December 31, 2017 and September 30, 2018 were shown as below:

	As of December 31, 2017
	Cost or Amortized cost		Gross unrecognized holding gains		Gross unrecognized holding losses			Gross unrealized gains		Gross unrealized losses			Fair value
	RMB		RMB		RMB			RMB		RMB			RMB
	(In millions)
Short-term investments:
Held-to-maturity debt investments		48,666		47		(18	)		—		—			48,695
Available-for-sale debt investments		40,139							581		(5	)		40,715
Other invested securities:		18,289		—		—			169		(108	)		18,350
Long-term investments:
Available-for-sale equity investments		2,077		—		—			742		(46	)		2,773
Investments accounted for at fair value		307		—		—			14		—			321

	As of September 30, 2018
	Cost or Amortized cost		Gross unrecognized holding gains		Gross unrecognized holding losses		Gross unrealized gains		Gross unrealized loss			Fair value
	RMB		RMB		RMB		RMB		RMB			RMB		US$
	(In millions)
Short-term investments:
Held-to-maturity debt investments		31,939		166		—		—		—			32,105		4,675
Available-for-sale debt investments		55,520		—		—		1,313		(56	)		56,777		8,267
Long-term investments:
Equity investments at fair value with readily determinable fair value		4,808		—		—		1,022		(827	)		5,003		728
Available-for-sale debt investments		2,000		—		—		23		—			2,023		294
Investments accounted for at fair value		977		—		—		302		—			1,279		186

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Changes in Equity and Redeemable Noncontrolling Interests

9 Months Ended

Sep. 30, 2018

Federal Home Loan Banks [Abstract]

Changes in Equity and Redeemable Noncontrolling Interests

5. CHANGES IN EQUITY AND REDEEMABLE NONCONTROLLING INTERESTS

	Number of shares			Amount		Additional paid-in capital		Retained earnings			Accumulated other comprehensive income			Non-controlling interests			Total shareholders’ equity			Redeemable non-controlling interests
				RMB		RMB		RMB			RMB			RMB			RMB			RMB
Balance at December 31, 2017		34,816,232			—		12,088		102,328			930			4,004			119,350			11,022
Cumulative effect of accounting change		—			—		—		2,821			(1,854	)		—			967			—
Net income (loss)		—			—		—		25,492			—			(3,478	)		22,014			—
Other comprehensive income (loss)		—			—		—		—			1,323			1,007			2,330			—
Business combination		—			—		75		—			—			938			1,013			—
Issuance of subsidiary shares		—			—		14,990		—			—			(822	)		14,168			—
Exercise of share-based awards		246,989			—		685		—			—			1			686			—
Share-based compensation		—			—		2,929		—			—			119			3,048			—
Accretion of redeemable non-controlling interests		—			—		—		(128	)		—			—			(128	)		128
Disposal of a subsidiary’s shares		—			—		1,323		—			—			235			1,558			—
Repurchase and retirement of ordinary shares		(207,165	)		—		—		(3,312	)		—			—			(3,312	)		—
Conversion of iQIYI preferred shares recognized as redeemable noncontrolling interests to ordinary shares		—			—		—		—			—			11,150			11,150			(11,150	)
Balance at September 30, 2018 (RMB)		34,856,056			—		32,090		127,201			399			13,154			172,844			—
Balance at September 30, 2018 (US$)					—		4,672		18,521			58			1,915			25,166			—

On June 27, 2018, the Company announced a share repurchase program under which the Company proposed to acquire up to an aggregate of US$1.0 billion of its ordinary shares over the next 12 months in the open market or through privately negotiated transactions, depending on market conditions and in accordance with applicable rules and regulations. The Company repurchased 207,165 Class A ordinary shares from the open market with an aggregate purchase price of US$487 million during the nine-month period ended September 30, 2018. The repurchased shares were cancelled under Cayman Islands law upon repurchase and the difference between the par value and the repurchase price was debited to retained earnings.

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Fair Value Measurements

9 Months Ended

Sep. 30, 2018

Fair Value Disclosures [Abstract]

Fair Value Measurements

6. FAIR VALUE MEASUREMENTS

ASC 820 establishes a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value as follows:

Level 1—	Observable inputs that reflect quoted prices (unadjusted) for identical assets or liabilities in active markets
Level 2—	Include observable inputs other than quoted prices included in Level 1, such as quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets and liabilities in markets that are not active, or other inputs that are observable or can be corroborated by observable market data.
Level 3—	Unobservable inputs which are supported by little or no market activity

ASC 820 describes three main approaches to measuring the fair value of assets and liabilities: (1) market approach; (2) income approach and (3) cost approach. The market approach uses prices and other relevant information generated from market transactions involving identical or comparable assets or liabilities. The income approach uses valuation techniques to convert future amounts to a single present value amount. The measurement is based on the value indicated by current market expectations about those future amounts. The cost approach is based on the amount that would currently be required to replace an asset.

Assets and Liabilities Measured or Disclosed at Fair Value

In accordance with ASC 820, the Company measures equity investments with readily determinable fair value, other invested securities and investments accounted for at fair value on a recurring basis. The fair value of time deposits are determined based on the prevailing interest rates in the market. The fair values of the Company’s held-to-maturity investments as disclosed are determined based on the discounted cash flow model using the discount curve of market interest rates. The fair value of the Company’s available-for-sale debt investments and other invested securities are measured using the income approach, based on quoted market interest rates of similar instruments and other significant inputs derived from or corroborated by observable market data. The fair values of the Company’s equity investments in the equity securities of publicly listed companies are measured using quoted market prices. Investments accounted for at fair value are equity investments in unlisted companies held by consolidated investment companies, which do not have readily determinable market values. The fair value of these investments were categorized as Level 3 in the fair value hierarchy. The Company uses a combination of valuation methodologies, including market and income approaches based on the Company’s best estimate, which is determined by using information including but not limited to the pricing of recent rounds of financing, future cash flow forecasts, liquidity factors and multiples of a selection of comparable companies.

The Company measures certain debt and equity investments at fair value on a nonrecurring basis if an impairment charge is recognized. For equity investments without readily fair value for which the Company elected to use the measurement alternative, the equity investment is measured at fair value on a nonrecurring basis when there is an orderly transaction for identical or similar investments of the same issuer. The fair value of these investments were categorized as Level 3 in the fair value hierarchy. The Company’s non-financial assets, such as intangible assets, goodwill and fixed assets, would be measured at fair value only if they were determined to be impaired on other-than-temporary basis.

Assets and liabilities measured at fair value on a recurring basis or disclosed at fair value are summarized below:

			Fair value measurement or disclosure at December 31, 2017
	Total fair value at December 31, 2017		Quoted prices in active markets for identical assets (Level 1)		Significant other observable inputs (Level 2)		Significant unobservable inputs (Level 3)
	RMB		RMB		RMB		RMB
	(In millions)
Fair value disclosure
Cash equivalents
Time deposits		130				130
Money market funds		2,384		2,384
Short-term investments
Held-to-maturity debt investments		48,695				48,695
Long-term notes payable		35,943				35,943
Fair value measurement
Short-term investments
Available-for-sale debt investments		40,715				40,715
Other invested securities		18,350				18,350
Long-term investments
Available-for-sale equity investments		2,773		2,773
Investments accounted for at fair value		321						321
Other non-current assets
Derivative instruments		168				168
Total assets measured at fair value		62,327		2,773		59,233		321

					Fair value measurement or disclosure at September 30, 2018
	Total fair value at September 30, 2018				Quoted prices in active markets for identical assets (Level 1)		Significant other observable inputs (Level 2)		Significant unobservable inputs (Level 3)
	(RMB)		(US$)		(RMB)		(RMB)		(RMB)
	(In millions)
Fair value disclosure
Cash equivalents
Time deposits		1,498		218				1,498
Money market fund		2,672		389		2,672
Short-term investments:
Held-to-maturity debt investments		32,105		4,675				32,105
Long-term notes payable		40,328		5,872				40,328
Fair value measurement
Short-term investments:
Available-for-sale debt investments		50,161		7,304				50,161
Long-term investments:
Equity investments at fair value with readily determinable fair value		5,003		728		5,003
Investment accounted for at fair value		1,279		186						1,279
Other non-current assets
Derivative instruments		296		43				277		19
Accounts payable and accrued liabilities
Derivative instruments		123		18						123
Amounts due to related parties, non-current
Financial liability		347		51				347
Net assets measured at fair value		56,269		8,192		5,003		50,091		1,175

Assets measured at fair value on a non-recurring basis

The company measures non-financial assets such as long-term investments on a nonrecurring basis when impairment charges are recognized. These nonrecurring fair value measurements use significant unobservable inputs (Level 3). RMB197 million and RMB298 million (US$45 million) of long-term investments impairment charges were recognized for the three-month periods ended September 30, 2017 and 2018. RMB197 million and RMB396 million (US$58 million) of long-term investments impairment charges were recognized for the nine-month periods ended September 30, 2017 and 2018.

The remeasurement was due to declining financial performances and changes in the business circumstances of these investees. The corresponding impairment charges incurred were recorded accordingly. The Company uses a combination of valuation methodologies, including market and income approaches based on the Company’s best estimate to determine the fair value of these investments. For investments in private companies, information considered by the Company include but are not limited to the pricing of recent rounds of financing, future cash flow forecasts, and liquidity factors. For investments in listed companies, the Company mainly considered the quoted share price.

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Share-Based Compensation Expenses

9 Months Ended

Sep. 30, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Share-Based Compensation Expenses

7. SHARE-BASED COMPENSATION EXPENSES

Total share-based compensation expenses recognized for the three-month and nine-month periods ended September 30, 2017 and 2018 have been reported as follows:

	For the three months ended
	September 30, 2017		September 30, 2018		September 30, 2018
	RMB		RMB		US$
	(In millions)
	(unaudited)
Cost of revenues		53		58		9
Selling, general and administrative		252		545		79
Research and development		536		636		92
		841		1,239		180

	For the nine months ended
	September 30, 2017		September 30, 2018		September 30, 2018
	RMB		RMB		US$
	(In millions)
	(unaudited)
Cost of revenues		137		153		22
Selling, general and administrative		675		1,138		166
Research and development		1,456		1,843		268
		2,268		3,134		456

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Fixed Assets

9 Months Ended

Sep. 30, 2018

Property, Plant and Equipment [Abstract]

Fixed Assets

8. FIXED ASSETS

Fixed assets and the related accumulated depreciation as of December 31, 2017 and September 30, 2018 are as follows:

	As of December 31, 2017			As of September 30, 2018			As of September 30, 2018
	RMB			RMB			US$
	(In millions)
	(unaudited)
Computer equipment		18,354			23,539			3,427
Office building		4,003			4,163			606
Office building related facility machinery and equipment		1,956			2,166			315
Vehicles		80			162			24
Office equipment		690			747			109
Leasehold improvements		341			341			50
Construction in progress		680			693			101
		26,104			31,811			4,632
Accumulated depreciation		(13,629	)		(15,614	)		(2,274	)
		12,475			16,197			2,358

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Loans Payable

9 Months Ended

Sep. 30, 2018

Debt Disclosure [Abstract]

Loans Payable

9. LOANS PAYABLE

Short-term Loans

iQIYI

In June 2017, iQIYI entered into a banking facility agreement with China Minsheng Bank (Beijing Branch), pursuant to which iQIYI is entitled to borrow a secured RMB denominated loan of RMB300 million for one year with a fixed interest rate. The loan is intended for general working capital purposes. In November 2017, iQIYI drew down RMB132 million and RMB62 million with interest rates of 4.78% and 5.00%, respectively.

In August 2017, iQIYI entered into a banking facility agreement with China Merchants Bank (Beijing Branch), pursuant to which iQIYI is entitled to borrow a secured RMB denominated loan of RMB200 million for one year with an interest rate based on Loan Prime Rate (“LPR”) plus surcharges. The loan is intended for general working capital purposes. In September 2017, iQIYI drew down RMB106 million with an interest rate of 4.11%. In February and June, 2018, an additional RMB67 million (US$10 million) and RMB13 million (US$2 million) were drawn down with an interest of 3.92%, respectively. The RMB106 million drawn down in September 2017 was repaid when it became due.

In February 2018, iQIYI entered into a banking facility agreement with Industrial and Commercial Bank of China (Shenzhen Branch), pursuant to which iQIYI is entitled to borrow a secured RMB denominated loan of RMB100 million (US$15 million) for one year with an interest rate based on LPR plus surcharges. The loan is intended for general working capital purposes. In March and May, 2018, RMB30 million (US$4 million) and RMB20 million (US$3 million) were drawn down with an interest rate of 4.79%, respectively.

In May 2018, iQIYI entered into a banking facility agreement with the Hong Kong and Shanghai Banking Corporation, pursuant to which iQIYI is entitled to borrow a secured RMB denominated loan of RMB300 million (US$44 million) with an annual interest rate based on LPR plus surcharges. The loan is intended for general working capital purposes. In May, June and August 2018, RMB102 million (US$15 million), RMB100 million (US$15 million) and RMB125 million (US$18 million) were drawn down with an interest rate of 4.79%, respectively. During nine-month period ended September 30, 2018, RMB130 million (US$ 19 million) were repaid in total.

In July 2018, iQIYI entered into a banking facility agreement with Industrial and Commercial Bank of China (Shenzhen Branch), pursuant to which iQIYI is entitled to borrow a secured RMB denominated loan of RMB50 million (US$7 million) for one year with an interest rate based on LPR plus surcharges. The loan is intended for general working capital purposes. In July, 2018, iQIYI drew down RMB50 million (US$7 million) with an interest rate of 5.00%.

In August 2018, iQIYI entered into a banking facility agreement with Bank of China (Shanghai Branch), pursuant to which iQIYI is entitled to borrow an secured RMB denominated loan of RMB200 million (US$29 million) with an annual interest rate based on LPR plus surcharges. The loan is intended for general working capital purposes and is repayable in one year. In August, 2018, iQIYI drew down RMB200 million (US$29 million) with an annual interest rate of 4.79%.

In August 2018, iQIYI entered into a banking facility agreement with China Merchants Bank (Shanghai Branch), pursuant to which iQIYI is entitled to borrow an secured RMB denominated loan of RMB300 million (US$44 million) for one year with an interest rate based on LPR plus surcharges. The loan is intended for general working capital purposes. In August, 2018, iQIYI drew down RMB61 million (US$9 million) with an interest rate of 4.79%. In September, 2018, an additional RMB38 million (US$5 million) was drawn down with an interest rate of 4.79%.

In August 2018, iQIYI entered into a banking facility agreement with China Merchants Bank (Beijing Branch), pursuant to which iQIYI is entitled to borrow an secured RMB denominated loan of RMB500 million (US$73 million) for one year with an interest rate based on LPR plus surcharges. The loan is intended for general working capital purposes. In September, 2018, iQIYI drew down RMB202 million (US$29 million) with an interest rate of 3.92%.

In September 2018, iQIYI entered into a banking facility agreement with Industrial and Commercial Bank of China (Shenzhen Branch), pursuant to which iQIYI is entitled to borrow a secured RMB denominated loan of RMB100 million (US$15 million) for one year with an interest rate based on LPR plus surcharges. The loan is intended for general working capital purposes. In September, 2018, iQIYI drew down RMB100 million (US$15 million) with an interest rate of 4.79%.

Du Xiaoman

In November 2016, the Company entered into a loan agreement with International Finance Corporation, pursuant to which the Company is entitled to borrow an unsecured RMB denominated loan of RMB500 million with a term of one year. Pursuant to the agreement, the loan shall only be used for the consumer credit business. In December 2016, the Company drew down RMB500 million with a fixed interest rate of 4.92%. The loan was extended to December 2018 with an interest rate of 6.04% via a renewed contract signed by both parties when the original loan became due. The loan balance was derecognized from the consolidated balance sheet upon disposal of the financial services business (Note 4).

In November 2016, the Company entered into a loan agreement with China Merchants Bank (Shanghai Branch), pursuant to which the Company is entitled to borrow an unsecured RMB denominated loan of RMB100 million with a term of one year. Pursuant to the agreement, the loan shall only be used by the Company for the consumer credit business. In December 2016 and January 2017, the Company drew down RMB85 million and RMB15 million, respectively, with a fixed interest rate of 4.18%. The loan was fully repaid when it became due. The loan balance was derecognized from the consolidated balance sheet upon disposal of the financial services business (Note 4).

In August 2017, the Company entered into a banking facility agreement with China Merchants Bank (Beijing Branch), pursuant to which the Company is entitled to borrow an unsecured RMB denominated loan of RMB300 million for one year with an annual interest rate at 116% of the benchmark one-year lending rate published by the People’s Bank of China. This facility is reserved for consumer credit business purposes. In September 2017, the Company drew down RMB130 million with an interest rate of 5.05%. The loan balance was derecognized from the consolidated balance sheet upon disposal of the financial services business (Note 4).

In September 2017, the Company entered into a banking facility agreement with China Citic Bank (Chongqing Branch), pursuant to which the Company is entitled to borrow an unsecured RMB denominated loan of RMB300 million for one year with an annual interest rate at 115% of the benchmark one-year lending rate published by the People’s Bank of China. This facility is reserved for commercial credit purposes. In September 2017, the Company drew down RMB300 million with an interest rate of 5.00% under the facility commitment. The loan balance was derecognized from the consolidated balance sheet upon disposal of the financial services business (Note 4).

In January 2018, the Company entered into a banking facility agreement with Bank of Dalian, pursuant to which the Company is entitled to borrow an unsecured RMB denominated loan of RMB400 million (US$58 million) for one year with fixed annual interest rate. This facility is reserved for commercial credit purposes. In January 2018, the Company drew down RMB400 million (US$58 million) with an interest rate of 6.13%. The loan balance was derecognized from the consolidated balance sheet upon disposal of the financial services business (Note 4).

Long-term Loans

Baidu

In June 2016, the Company entered into a five-year term and revolving facility agreement with a group of 21 syndicated bankers, pursuant to which the Company is entitled to borrow an unsecured US$ denominated floating rate loan of US$1.0 billion with a term of five years and to borrow an unsecured US$ denominated revolving loan of US$1.0 billion for five years. The facility was priced at 110 basis points over LIBOR and is intended for the general working capital of the Company. In June, 2016, the Company drew down two tranches of US$250 million each under the facility commitment. In November 2016, the Company drew down two tranches of US$ 250 million each under the facility commitment. In connection with the facility agreements, the Company entered into four interest rate swap agreements, pursuant to which the loans will be settled with a fixed annual interest rate of 2.11%, 2.10%, 2.78% and 2.78% respectively, during the respective term of the loans.

The interest rate swap agreements met the definition of a derivative in accordance with ASC 815 (“ASC 815”), Derivatives and Hedging. The derivatives related to the interest rate swap agreements are accounted at fair value and included in “Other non-current assets” on the consolidated balance sheets.

iQIYI

In April 2017, iQIYI entered into a three-year loan agreement with Bank of China (Shanghai Branch), pursuant to which the Company is entitled to borrow a secured RMB denominated loan of RMB299 million with an annual interest rate at 94% of benchmark three-year lending rate published by the People’s Bank of China. The loan is intended for the general working capital of the Company. In April 2017, iQIYI drew down RMB299 million with an interest rate of 4.47%, pursuant to the agreement, the principal shall be repaid by installments from September 2017 to April 2020. RMB15 million was repaid when it became due. The amount repayable within twelve months were classified as “Long-term loans, current portion.”

Du Xiaoman

In March 2018, the Company entered into a banking facility agreement with International Finance Corporation, pursuant to which the Company is entitled to borrow two unsecured RMB denominated loans of RMB650 million (US$95 million) each for two to three years This facility is reserved for commercial credit business. In May 2018, RMB650 million (US$95 million) with an interest rate of 5.91% and RMB32 million (US$5 million) with an interest rate of 6.12% were drawn down under the three-year loan and RMB32 million (US$5 million) with an interest rate of 5.81% was drawn down under the two-year loan. The loan balance was derecognized from the consolidated balance sheet upon disposal of the financial services business (Note 4).

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Notes Payable

9 Months Ended

Sep. 30, 2018

Debt Disclosure [Abstract]

Notes Payable

10. NOTES PAYABLE

Baidu, Inc.

On November 28, 2012, the Company issued and publicly sold two tranches of unsecured senior notes: (i) an aggregate principal amount of US$750 million matured on November 28, 2017 (the “2017 Notes”), and (ii) an aggregate principal amount of US$750 million that will mature on November 28, 2022 (the “ 2022 Ten-year Notes”). On August 6, 2013, the Company issued and publicly sold another tranche of unsecured senior notes with an aggregate principal amount of US$1.0 billion that matured on August 6, 2018 (the “2018 Notes”). On June 9, 2014, the Company issued and publicly sold the fourth tranche of unsecured senior notes with an aggregate principal amount of US$1.0 billion that will mature on June 9, 2019 (the “2019 Notes”). On June 30, 2015, the Company issued and publicly sold two tranches of unsecured senior notes: (i) an aggregate principal amount of US$750 million that will mature on June 30, 2020 (the “2020 Notes”), and (ii) an aggregate principal amount of US$500 million that will mature on June 30, 2025 (the “2025 Notes”). On July 6, 2017, the Company issued and publicly sold two tranches of unsecured senior notes: (i) an aggregate principal amount of US$900 million that will mature on July 6, 2022 (the “2022 Five-year Notes”), and (ii) an aggregate principal amount of US$600 million that will mature on July 6, 2027 (the “2027 Notes”). On March 29, 2018, the Company issued and publicly sold two tranches of unsecured senior notes: (i) an aggregate principal amount of US$1.0 billion that will mature on September 29, 2023 (the “2023 Notes”), and (ii) an aggregate principal amount of US$500 million that will mature on March 29, 2028 (the “ 2028 Notes”). The 2017 Notes and 2018 Notes were fully repaid when they became due.

The 2017 Notes, 2018 Notes, 2019 Notes, 2020 Notes, 2022 Ten-year Notes, 2025 Notes, 2022 Five-year Notes, 2027 Notes, 2023 Notes and 2028 Notes are collectively referred to as the “Notes.”

The 2017 Notes bear interest at the rate of 2.25% per annum and the 2022 Ten-year Notes bear interest at the rate of 3.50% per annum. Interests are payable semi-annually in arrears on and of each year, beginning on May 28, 2013. The 2018 Notes bear interest at the rate of 3.25% per annum. Interests are payable semi-annually in arrears on and of each year, beginning on February 6, 2014. The 2019 Notes bear interest at the rate of 2.75% per annum. Interests are payable semi-annually in arrears on and of each year, beginning on December 9, 2014. The 2020 Notes bear interest at the rate of 3.00% per annum and the 2025 Notes bear interest at the rate of 4.13% per annum. Interests are payable semi-annually in arrears on and of each year, beginning on December 30, 2015. At maturity, the Notes are payable at their principal amount plus accrued and unpaid interest thereon. The 2022 Five-year Notes bear interest at the rate of 2.88% per annum and the 2027 Notes bear interest at the rate of 3.63% per annum. Interest are payable semi-annually in arrears on and of each year, beginning on January 6 and July 6, 2018. The 2023 Notes bear interest at the rate of 3.88% per annum and the 2028 Notes bear interest at the rate of 4.38% per annum. Interest are payable semi-annually in arrears on and of each year, beginning on March 29 and September 29, 2018.

The Notes do not contain any financial covenants or other significant restrictions. In addition, the Notes are unsecured and rank lower than any secured obligation of the Group and have the same liquidation priority as any other unsecured liabilities of the Group, but senior to those expressly subordinated obligations, if any. The Company may, at its discretion, redeem all or any portion of the Notes at any time, at the greater of the principal amount and the make whole amount plus accrued and unpaid interest. As of September 30, 2018, the Company does not intend to redeem any portion of the Notes prior to the stated maturity dates. For certain notes, the Company has the obligation to redeem the Notes if a change in control occurs as defined in the indenture of the Notes.

The Notes were issued at a discount amounting to RMB140 million (US$20 million). The issuance costs of RMB214 million (US$31 million) were presented as a direct deduction from the principal amount of the Notes on the consolidated balance sheets. Both the discount and the issuance costs are amortized as interest expense using the effective interest rate method through the maturity dates of the Notes. The effective interest rate was 2.36%, 3.39%, 3.00%, 3.13%, 3.59%, 4.22%, 3.08%, 3.73%, 3.99% and 4.50% for the 2017 Notes, the 2018 Notes, the 2019 Notes, the 2020 Notes, the 2022 Ten-year Notes, the 2025 Notes, 2022 Five-year Notes, 2027 Notes, 2023 Notes and 2028 Notes, respectively.

The principal amount and unamortized discount and debt issuance costs as of December 31, 2017 and September 30, 2018 are as follows:

	As of December 31, 2017			As of September 30, 2018			As of September 30, 2018
	RMB			RMB			US$
	(In millions)
				(unaudited)
Principal amount		35,782			41,207			5,999
Unamortized discount and debt issuance cost		(171	)		(209	)		(30	)
		35,611			40,998			5,969

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Income Taxes

9 Months Ended

Sep. 30, 2018

Income Tax Disclosure [Abstract]

Income Taxes

11. INCOME TAXES

The Company is incorporated in the Cayman Islands and conducts its primary business operations through subsidiaries and VIEs in the PRC. It also has intermediate holding companies in the BVI and Hong Kong. Under the current laws of the Cayman Islands and BVI, the Company is not subject to tax on income nor capital gains. Additionally, upon payments of dividends by the Company to its shareholders, neither Cayman Islands nor BVI will impose withholding taxes. Under the Hong Kong tax laws, subsidiaries in Hong Kong are subject to the Hong Kong corporate income tax rate at 16.5% exempting foreign-derived income, and there are no withholding taxes in Hong Kong on remittance of dividends.

Under the PRC Enterprise Income Tax (“EIT”) Law, which has been effective since January 1, 2008, domestic enterprises and Foreign Investment Enterprises (the “FIE”) are subject to a unified 25% enterprise income tax rate, except for certain entities that are entitled to preferential tax treatments.

The effective tax rates were 12% and 15% for the three-month periods ended September 30, 2017 and 2018, respectively, and 13% and 16% for the nine-month periods ended September 30, 2017 and 2018, respectively. The effective tax rates for the three-month and nine-month periods ended September 30, 2018 were lower than the PRC statutory EIT rate of 25%, mainly due to preferential tax rates associated with High and New Technology Enterprises granted to certain PRC subsidiaries and VIEs.

The effective tax rates are subject to change in future, as the estimates of pretax income or loss for the year vary and certain subsidiaries of the Company may or may not continue to qualify for certain preferential tax rates.

The Company did not provide deferred income taxes and foreign withholding taxes on the undistributed earnings of foreign subsidiaries for the year 2017 and the nine-month period ended September 30, 2018 on the basis of its intent to permanently reinvest foreign subsidiaries’ earnings. As of September 30, 2018, the total amount of undistributed earnings from the Company’s PRC subsidiaries for which no withholding tax has been accrued was RMB 136.9 billion (US$19.9 billion). Under the PRC tax regulations, dividends from PRC companies to their overseas parents in respect of earnings derived from January 1, 2008 onwards are subject to PRC dividend withholding tax at 10%. Such rate could be reduced to 5% should treaty benefits be applicable. In the case of the Company’s VIEs in the PRC, their undistributed earnings were insignificant as of each of the balance sheet dates.

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Restricted Net Assets

9 Months Ended

Sep. 30, 2018

Receivables [Abstract]

Restricted Net Assets

12. RESTRICTED NET ASSETS

Under PRC laws and regulations, there are restrictions on the Company’s PRC subsidiaries and VIEs with respect to transferring certain of their net assets to the Company either in the form of dividends, loans, or advances. The amount of net assets restricted include paid in capital and statutory reserve funds of the Company’s PRC subsidiaries and the net assets of the VIEs in which the Company has no legal ownership, totaling RMB18.6 billion and RMB26.1 billion (US$3.8 billion) as of December 31, 2017 and September 30, 2018, respectively.

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Accumulated Other Comprehensive (Loss)/Income

9 Months Ended

Sep. 30, 2018

Equity [Abstract]

Accumulated Other Comprehensive (Loss)/Income

13. ACCUMULATED OTHER COMPREHENSIVE (LOSS)/INCOME

The changes in accumulated other comprehensive (loss) income by component, net of tax, are as follows:

	Foreign currency translation adjustments			Unrealized gains on available-for- sale investments			Total
	RMB			RMB			RMB
	(In millions)
	(unaudited)
Balance at December 31, 2016		(2,022	)		239			(1,783	)
Other comprehensive income before reclassification		974			1,406			2,380
Amounts reclassified from accumulated other comprehensive income (loss)		48			(767	)		(719	)
Net current-period other comprehensive income		1,022			639			1,661
Other comprehensive income (loss) attributable to noncontrolling interests and redeemable noncontrolling interests		192			—			192
Balance at September 30, 2017		(808	)		878			70
Balance at December 31, 2017		(888	)		1,818			930
Cumulative effect of accounting change *		—			(1,854	)		(1,854	)
Other comprehensive income before reclassification		79			3,529			3,608
Amounts reclassified from accumulated other comprehensive income		80			(1,358	)		(1,278	)
Net current-period other comprehensive income		159			317			476
Other comprehensive income (loss) attributable to noncontrolling interests and redeemable noncontrolling interests		(992	)		(15	)		(1,007	)
Balance at September 30, 2018		(1,721	)		2,120			399
Balance at September 30, 2018, in US$		(251	)		309			58

* Adjustment of net unrealized gains related to available-for-sale equity investments from accumulated other comprehensive income to opening retained earnings as a result of the adoption of ASC 321 on January 1, 2018.

The amounts reclassified out of accumulated other comprehensive (loss) income represent realized foreign currency translation adjustments and realized gains on the available-for-sale investments upon their sales, which were then recorded in “Other income, net” in the consolidated statements of comprehensive income.

The following table sets forth the tax effect allocated to each component of other comprehensive income:

	For the three months ended
	September 30, 2017			September 30, 2018			September 30, 2018
	RMB			RMB			US$
	(In millions)
	(unaudited)
Unrealized gains on available-for-sale investments
Other comprehensive loss before reclassification		(86	)		(106	)		(15	)
Amounts reclassified from accumulated other comprehensive income		50			101			14
Net current-period other comprehensive loss		(36	)		(5	)		(1	)

	For the nine months ended
	September 30, 2017			September 30, 2018			September 30, 2018
	RMB			RMB			US$
	(In millions)
	(unaudited)
Unrealized gains on available-for-sale investments
Other comprehensive loss before reclassification		(175	)		(302	)		(44	)
Amounts reclassified from accumulated other comprehensive income		126			206			30
Net current-period other comprehensive loss		(49	)		(96	)		(14	)

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Contingencies

9 Months Ended

Sep. 30, 2018

Commitments and Contingencies Disclosure [Abstract]

Contingencies

14. CONTINGENCIES

Litigation

The Group was involved in certain cases pending in various PRC, U.S. and Brazilian courts as of September 30, 2018. These cases include allegation of copyright infringement cases, unfair competition cases, and defamation cases, among others. Adverse results in these lawsuits may include awards of damages and may also result in, or even compel, a change in the Company’s business practices, which could result in a loss of revenue or otherwise harm the business of the Company.

For many proceedings, the Company is currently unable to estimate the reasonably possible loss or a range of reasonably possible losses as the proceedings are in the early stages, and/or there is a lack of clear or consistent interpretation of laws specific to the industry-specific complaints among different jurisdictions. As a result, there is considerable uncertainty regarding the timing or ultimate resolution of such matters, which includes eventual loss, fine, penalty or business impact, if any, and therefore, an estimate for the reasonably possible loss or a range of reasonably possible losses cannot be made. However, the Company believes that such matters, individually and in the aggregate, when finally resolved, are not reasonably likely to have a material adverse effect on the Company’s consolidated results of operations, financial position and cash flows. With respect to the limited number of proceedings for which the Company was able to estimate the reasonably possible losses or the range of reasonably possible losses, such loss estimates were insignificant.

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Earnings Per Share ("EPS")

9 Months Ended

Sep. 30, 2018

Earnings Per Share [Abstract]

Earnings Per Share ("EPS")

15. EARNINGS PER SHARE (“EPS”)

A reconciliation of net income attributable to Baidu, Inc. in the unaudited interim condensed consolidated statements of comprehensive income to the numerator for the computation of basic and diluted earnings per share for the three-month periods ended September 30, 2017 and 2018 is as follows:

	For the three months ended
	September 30, 2017		September 30, 2018		September 30, 2018
	RMB		RMB		US$
	(In millions)
	(unaudited)
Net income attributable to Baidu, Inc.		7,949		12,396		1,805
Accretion of the redeemable noncontrolling interests		466		—		—
Net income available to ordinary shareholders		8,415		12,396		1,805

The following table sets forth the computation of basic and diluted net income attributable to Baidu, Inc. per Class A and Class B ordinary share for the three-month periods ended September 30, 2017 and 2018

	For the three months ended
	September 30, 2017				September 30, 2018
	Class A		Class B		Class A		Class A		Class B		Class B
	RMB		RMB		RMB		US$		RMB		US$
	(In millions, except for number of shares, per share and per ADS data)
	(unaudited)
Earnings per share — basic:
Numerator
Allocation of net income available to ordinary shareholders		6,666		1,749		9,838		1,432		2,558		373
Denominator
Weighted average ordinary shares outstanding		27,489,083		7,214,841		27,690,479		27,690,479		7,201,254		7,201,254
Denominator used for earnings per share		27,489,083		7,214,841		27,690,479		27,690,479		7,201,254		7,201,254
Earnings per share — basic		242.48		242.48		355.27		51.73		355.27		51.73
Earnings per share — diluted:
Numerator
Allocation of net income available to ordinary shareholders		6,680		1,735		9,857		1,435		2,539		370
Reallocation of net income available to ordinary shareholders as a result of conversion of Class B to Class A shares		1,735		—		2,539		370		—		—
Allocation of net income available to ordinary shareholders		8,415		1,735		12,396		1,805		2,539		370
Denominator
Weighted average ordinary shares outstanding		27,489,083		7,214,841		27,690,479		27,690,479		7,201,254		7,201,254
Conversion of Class B to Class A ordinary shares		7,214,841		—		7,201,254		7,201,254		—		—
Share-based awards		287,253		—		267,014		267,014		—		—
Denominator used for earnings per share		34,991,177		7,214,841		35,158,747		35,158,747		7,201,254		7,201,254
Earnings per share — diluted		240.49		240.49		352.57		51.34		352.57		51.34
Earnings per ADS:
Denominator used for earnings per ADS — basic		274,890,830				276,904,790		276,904,790
Denominator used for earnings per ADS — diluted		349,911,770				351,587,470		351,587,470
Earnings per ADS — basic		24.25				35.53		5.17
Earnings per ADS — diluted		24.05				35.26		5.13

The Company did not include certain stock options and restricted shares in the computation of diluted earnings per share for the three-month periods ended September 30, 2017 and 2018 when those stock options or restricted shares were anti-dilutive for the respective periods.

A reconciliation of net income attributable to Baidu, Inc. in the unaudited interim condensed consolidated statements of comprehensive income to the numerator for the computation of basic and diluted earnings per share for the nine-month periods ended September 30, 2017 and 2018 is as follows:

	For the nine months ended
	September 30, 2017			September 30, 2018			September 30, 2018
	RMB			RMB			US$
	(In millions)
	(unaudited)
Net income attributable to Baidu, Inc.		14,141			25,492			3,711
Accretion of the redeemable noncontrolling interests		(173	)		(128	)		(19	)
Net income available to ordinary shareholders		13,968			25,364			3,692

The following table sets forth the computation of basic and diluted net income attributable to Baidu, Inc. per share for Class A and Class B ordinary shares for the nine-month periods ended September 30, 2017 and 2018:

	For the nine months ended
	September 30, 2017				September 30, 2018
	Class A		Class B		Class A		Class A		Class B		Class B
	RMB		RMB		RMB		US$		RMB		US$
	(In millions, except for number of shares, per share and per ADS data)
	(unaudited)
Earnings per share  - basic:
Numerator
Allocation of net income available to ordinary shareholders		11,038		2,930		20,130		2,930		5,234		762
Denominator
Weighted average ordinary shares outstanding		27,425,010		7,280,283		27,693,504		27,693,504		7,201,254		7,201,254
Denominator used for earnings per share		27,425,010		7,280,283		27,693,504		27,693,504		7,201,254		7,201,254
Earnings per share - basic		402.48		402.48		726.87		105.83		726.87		105.83
Earnings per share - diluted:
Numerator
Allocation of net income available to ordinary shareholders		11,054		2,914		20,177		2,937		5,187		755
Reallocation of net income available to ordinary shareholders as a result of conversion of Class B to Class A shares		2,914		—		5,187		755		—		—
Allocation of net income available to ordinary shareholders		13,968		2,914		25,364		3,692		5,187		755
Denominator
Weighted average ordinary shares outstanding		27,425,010		7,280,283		27,693,504		27,693,504		7,201,254		7,201,254
Conversion of Class B to Class A ordinary shares		7,280,283		—		7,201,254		7,201,254		—		—
Share-based awards		189,712		—		318,479		318,479		—		—
Denominator used for earnings per share		34,895,005		7,280,283		35,213,237		35,213,237		7,201,254		7,201,254
Earnings per share - diluted		400.29		400.29		720.30		104.88		720.30		104.88
Earnings per ADS:
Denominator used for earnings per ADS - basic		274,250,100				276,935,040		276,935,040
Denominator used for earnings per ADS - diluted		348,950,050				352,132,370		352,132,370
Earnings per ADS - basic		40.25				72.69		10.58
Earnings per ADS - diluted		40.03				72.03		10.49

The Company did not include certain stock options and restricted shares in the computation of diluted earnings per share for the nine-month periods ended September 30, 2017 and 2018 when those stock options or restricted shares were anti-dilutive for earnings per share for the respective periods.

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Related Party Transactions

9 Months Ended

Sep. 30, 2018

Related Party Transactions [Abstract]

Related Party Transactions

16. RELATED PARTY TRANSACTIONS

The related party transactions mainly represented online marketing services provided by the Company to Ctrip (including Qunar), the total transaction amounts for the three-month periods ended September 30, 2017 and 2018 was RMB186 million and RMB295 million (US$43 million), respectively, and the total transaction amounts for the nine-month periods ended September 30, 2017 and 2018 was RMB560 million and RMB832 million (US$121 million), respectively. Other related party transactions, including the reimbursements to Mr. Robin Yanhong Li for his use of an aircraft beneficially owned by his family for Company business purposes and to an executive officer for the rental expense for an office building owned by his family members for Company business purposes, were insignificant for each of the years presented.

As of December 31, 2017 and September 30, 2018, amounts due from/due to related parties were as follows:

	As of December 31,		As of September 30,
	2017		2018		2018
	RMB		RMB		US$
	(In millions)
Amounts due from related parties, current:
Ctrip(i)		137		158		23
Du Xiaoman(iii)		—		22,642		3,297
Other related parties(ii)		31		521		76
Total		168		23,321		3,396
Amounts due from related parties, non-current:
Du Xiaoman(iii)		—		1,982		288
Other related parties		9		12		2
Total		9		1,994		290
Amounts due to related parties, current:
Du Xiaoman(iv)		—		223		33
Ctrip(vi)		122		140		20
Other related parties(vii)		31		510		74
Total		153		873		127
Amounts due to related parties, non-current:
Du Xiaoman(v)		—		2,341		341
Other related parties(viii)		—		667		97
Total		—		3,008		438

(i) The balances mainly represent amounts arising from services the Company provided to Ctrip in the ordinary course of business.

(ii) The balances represent amounts arising from services the Company provided to its equity method investees (excluding Ctrip and Du Xiaoman) and cost method investees in the ordinary course of business, and a short-term interest-bearing loan provided to a cost method investee.

(iii) The balance represents amounts due from Du Xiaoman for unsettled payments relating to the disposal and short-term interest-bearing loans due from Du Xiaoman.

(iv) The balance represents mainly deferred revenue relating to future services to be provided.

(v) The balance represents mainly an interest-bearing loan provided by Du Xiaoman.

(vi) The balances mainly represent amounts arising from services provided by Ctrip in the ordinary course of business.

(vii) The balances represent amounts arising from services provided by the Company’s equity method investees other than Ctrip and Du Xiaoman and cost method investees in the ordinary course of business, and a short-term interest-bearing loan provided by a cost method investee to the Company.

(viii) The balance represents mainly deferred revenue relating to the future services to be provided by the Company to an equity method investee.

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Segment Reporting

9 Months Ended

Sep. 30, 2018

Segment Reporting [Abstract]

Segment Reporting

17. SEGMENT REPORTING

The operations of the Company are organized into two segments, consisting of Baidu Core and iQIYI. Baidu Core mainly provides keyword-based marketing services targeted at and triggered by internet users’ search queries, which mainly include P4P services and other online marketing service, and artificial intelligence-enabled new business initiatives. iQIYI is an online video platform with a content library that includes licensed movies, television series, cartoons, variety shows, self-produced programs and other programs. The Company derives the results of the segments directly from its internal management reporting system. The CODM reviews the performance of each segment based on its operating results and uses these results to evaluate the performance of, and to allocate resources to, each of the segments. Because substantially all of the Group’s long-lived assets and revenues are located in and derived from the PRC, geographical segments are not presented.

The table below provides a summary of the Group’s operating segment results for the three-month and nine-month periods ended September 30, 2017 and 2018.

	For the three months ended September 30, 2017
	Baidu Core			iQIYI			Intersegment eliminations & adjustments			Consolidated
	RMB			RMB			RMB			RMB
	(In millions)
	(unaudited)
Total revenues		18,342			4,951			196			23,489
Operating costs and expenses:
Cost of revenues		6,829			4,898			74			11,801
Selling, general and administrative		3,023			777			(54	)		3,746
Research and development		2,901			343			(2	)		3,242
Total operating costs and expenses		12,753			6,018			18			18,789
Operating profit (loss)		5,589			(1,067	)		178			4,700
Total other income, net		4,292			16			37			4,345
Income (loss) before income taxes		9,881			(1,051	)		215			9,045
Income taxes		1,098			1			(2	)		1,097
Net income (loss)		8,783			(1,052	)		217			7,948
Less: net income (loss) attributable to noncontrolling interests		(1	)		—			—			(1	)
Net income attributable to Baidu, Inc.		8,784			(1,052	)		217			7,949

	For the nine months ended September 30, 2017
	Baidu Core			iQIYI			Intersegment eliminations & adjustments			Consolidated
	RMB			RMB			RMB			RMB
	(In millions)
	(unaudited)
Total revenues		48,571			12,561			122			61,254
Operating costs and expenses:
Cost of revenues		18,907			12,852			(143	)		31,616
Selling, general and administrative		7,623			1,902			(28	)		9,497
Research and development		8,337			905			(17	)		9,225
Total operating costs and expenses		34,867			15,659			(188	)		50,338
Operating profit (loss)		13,704			(3,098	)		310			10,916
Total other income, net		5,266			(25	)		38			5,279
Income (loss) before income taxes		18,970			(3,123	)		348			16,195
Income taxes		2,062			2			2			2,066
Net income (loss)		16,908			(3,125	)		346			14,129
Less: net income (loss) attributable to noncontrolling interests		(9	)		—			(3	)		(12	)
Net income (loss) attributable to Baidu, Inc.		16,917			(3,125	)		349			14,141

	For the three months ended September 30, 2018
	Baidu Core				iQIYI						Intersegment eliminations						Consolidated
	RMB		US$		RMB			US$			RMB			US$			RMB			US$
	(In millions)
	(unaudited)
Total revenues		21,606		3,145		6,914			1,007			(317	)		(46	)		28,203			4,106
Operating costs and expenses:
Cost of revenues		6,804		990		7,655			1,115			(241	)		(35	)		14,218			2,070
Selling, general and administrative		4,428		645		1,292			188			(79	)		(12	)		5,641			821
Research and development		3,359		489		558			81			(1	)		—			3,916			570
Total operating costs and expenses		14,591		2,124		9,505			1,384			(321	)		(47	)		23,775			3,461
Operating profit (loss)		7,015		1,021		(2,591	)		(377	)		4			1			4,428			645
Total other income (loss), net		9,687		1,409		(539	)		(78	)		(127	)		(18	)		9,021			1,313
Income (loss) before income taxes		16,702		2,430		(3,130	)		(455	)		(123	)		(17	)		13,449			1,958
Income taxes		2,059		300		(6	)		(1	)		—			—			2,053			299
Net income (loss)		14,643		2,130		(3,124	)		(454	)		(123	)		(17	)		11,396			1,659
Less: net income (loss) attributable to noncontrolling interests		334		49		16			2			(1,350	)		(197	)		(1,000	)		(146	)
Net income (loss) attributable to Baidu, Inc.		14,309		2,081		(3,140	)		(456	)		1,227			180			12,396			1,805

	For the nine months ended September 30, 2018
	Baidu Core						iQIYI						Intersegment eliminations						Consolidated
	RMB			US$			RMB			US$			RMB			US$			RMB			US$
				(In millions)
				(unaudited)
Total revenues		57,751			8,409			17,961			2,615			(630	)		(92	)		75,082			10,932
Operating costs and expenses:
Cost of revenues		17,995			2,620			18,610			2,710			(472	)		(69	)		36,133			5,261
Selling, general and administrative		10,522			1,532			2,945			429			(179	)		(26	)		13,288			1,935
Research and development		9,859			1,435			1,387			202			(3	)		—			11,243			1,637
Total operating costs and expenses		38,376			5,587			22,942			3,341			(654	)		(95	)		60,664			8,833
Operating profit (loss)		19,375			2,822			(4,981	)		(726	)		24			3			14,418			2,099
Total other income (loss), net		13,199			1,921			(643	)		(93	)		(701	)		(102	)		11,855			1,726
Income (loss) before income taxes		32,574			4,743			(5,624	)		(819	)		(677	)		(99	)		26,273			3,825
Income taxes		4,260			620			(1	)		—			—			—			4,259			620
Net income (loss)		28,314			4,123			(5,623	)		(819	)		(677	)		(99	)		22,014			3,205
Less: net income (loss) attributable to noncontrolling interests		(1,241	)		(181	)		10			2			(2,247	)		(327	)		(3,478	)		(506	)
Net income (loss) attributable to Baidu, Inc.		29,555			4,304			(5,633	)		(821	)		1,570			228			25,492			3,711

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Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2018

Accounting Policies [Abstract]

Basis of Consolidation

Basis of Consolidation

The unaudited interim condensed consolidated financial statements include the accounts of Baidu, Inc. (“Baidu” or the “Company”), its subsidiaries, variable interest entities (“VIEs”) and the subsidiaries of the VIEs. The Company, its subsidiaries, VIEs and subsidiaries of the VIEs are hereinafter collectively referred to as the “Group.”

As of September 30, 2018, the Company has subsidiaries incorporated in countries and jurisdictions including the People’s Republic of China (“PRC”), Hong Kong, Japan, Cayman Islands and British Virgin Islands (“BVI”).

As of September 30, 2018, the Company also effectively controls a number of VIEs through a series of contractual agreements. The significant VIEs of the Group include:

• Beijing Baidu Netcom Science Technology Co., Ltd. (“Baidu Netcom”), controlled by the Company and Baidu Online Network Technology (Beijing) Co., Ltd. (“Baidu Online”), one of the Company’s wholly-owned subsidiaries;

• Beijing Perusal Technology Co., Ltd. (“Beijing Perusal”), controlled by Baidu Online; and

• Other VIEs controlled by the Company’s subsidiaries other than Baidu Online.

The Group offers online marketing services, operates AI-powered new business initiatives, operates an online video platform offering advertising business and offers membership services of its content library. The Group’s principal geographic market is in the PRC. The Company does not conduct any substantive operations on its own, but conducts its primary business operations through its subsidiaries and VIEs in the PRC.

PRC laws and regulations prohibit or restrict foreign ownership of internet content, advertising, audio and video services, and mobile application distribution businesses. To comply with these foreign ownership restrictions, the Group operates its websites and primarily provides services subject to such restriction in the PRC through the VIEs, the PRC legal entities that were established or whose equity shares were held by the individuals authorized by the Group. The paid-in capital of the VIEs was mainly funded by the Group through loans extended to the authorized individuals who were the shareholders of the VIEs. The Group has entered into proxy agreements or powers of attorney and exclusive equity purchase option agreement with the VIEs and nominee shareholders of the VIEs through the Company or its subsidiaries (“Primary Beneficiaries”), which give the Primary Beneficiaries the power to direct the activities that most significantly affect the economic performance of the VIEs and to acquire the equity interests in the VIEs when permitted by the PRC laws, respectively. Certain exclusive agreements have been entered into with the VIEs through the Primary Beneficiaries or their wholly-owned subsidiaries in the PRC, which obligate the Primary Beneficiaries to absorb losses of the VIEs’ that could potentially be significant to the VIEs or entitle the Primary Beneficiaries to receive economic benefits from the VIEs that could potentially be significant to the VIEs. In addition, the Group has entered into certain agreements with the shareholders of the VIEs through the Primary Beneficiaries or their wholly-owned subsidiaries, including loan agreements for the paid-in capital of the VIEs and equity pledge agreements for the equity interests in the VIEs held by the shareholders of the VIEs.

Despite the lack of technical majority ownership, there exists a parent-subsidiary relationship between the Primary Beneficiaries and the VIEs through the aforementioned agreements with the shareholders of the VIEs. The shareholders of the VIEs effectively assigned all of their voting rights underlying their equity interest in the VIEs to the Primary Beneficiaries. In addition, through the other exclusive agreements, which consist of operating agreements, technology consulting and services agreements and license agreements, the Primary Beneficiaries, by themselves or their wholly-owned subsidiaries in the PRC, demonstrate their ability and intention to continue to exercise the ability to absorb losses or receive economic benefits that could potentially be significant to the VIEs. The VIEs are subject to operating risks, which determine the variability of the Company’s interest in those entities. Based on these contractual arrangements, the Company consolidates the VIEs as required by SEC Regulation S-X Rule 3A-02 and Accounting Standards Codification (“ASC”) topic 810, Consolidation, because the Company holds all the variable interests of the VIEs through the Primary Beneficiaries.

Unrecognized revenue-producing assets held by the VIEs include certain internet content provisions and other licenses, domain names and trademarks. The internet content provisions and other licenses, which are held by the VIEs that provide the relevant services, are required under relevant PRC laws, rules and regulations for the operation of Internet businesses in the PRC, and therefore are integral to the Company’s operations.

In March 2018, the contractual agreements for certain VIEs, including Baidu Netcom and Beijing Perusal, were amended to include the following terms:

a. Exclusive equity purchase and transfer option agreement

The Company has (i) an exclusive option to purchase, when and to the extent permitted under PRC laws, all or part of the equity interests in the VIE or all or part of the assets held by the VIE, (ii) an exclusive right to cause the nominee shareholders to transfer their equity interest in the VIE to the Company or any designated third party and (iii) an obligation to provide unlimited financial support to the VIEs when the VIEs become in need of any form of reasonable financial support in the normal operation of business. If the VIEs were to incur any loss and as a result cannot repay any loans from the Company, the Company will unconditionally forgive any such loans to the VIEs upon provision by the VIEs of sufficient proof for its loss and incapacity to repay.

b. Proxy Agreements/Power of Attorney

The appointment of any individuals to exercise the powers and rights assigned pursuant to the Proxy Agreement requires the approval of the Company. All the activities in relation to such powers and rights assigned are directed and approved by the Company. The shareholders of the VIEs agreed to entrust all the rights to exercise their voting power and any other rights as shareholders of the VIEs to the person(s) designated by the Company. The shareholders of the VIEs have each executed an irrevocable power of attorney to appoint the person(s) designated by the Company as their attorney-in-fact to vote on their behalf on all matters requiring shareholder approval.

As a result, the power and the rights pursuant to the Proxy Agreements have since been effectively reassigned from Baidu Online to the Company which has the power to direct the activities of the VIEs that most significantly impact the VIEs’ economic performance. The Company is also obligated to absorb the expected losses of the VIE through the financial support as described above. Therefore, the Company has replaced Baidu Online as the Primary Beneficiary of Baidu Netcom and Beijing Perusal since March 2018. As the VIEs were subject to indirect control by the Company through WFOE immediately before and direct control immediately after the contractual agreements were amended, the change of the primary beneficiary of the VIEs was accounted for as a common control transaction based on the carrying amount of the net assets transferred.

In the opinion of the Company’s legal counsel, (i) the ownership structure relating to the VIEs of the Company is in compliance with existing PRC laws and regulations; (ii) the contractual arrangements with the VIEs and their shareholders are valid, binding and enforceable, and will not result in any violation of PRC laws or regulations currently in effect; and (iii) the performance of the VIEs and their shareholders is in compliance with the articles of association and business licenses of the VIEs.

However, uncertainties in the PRC legal system could cause the Company’s current ownership structure to be found in violation of any existing and/or future PRC laws or regulations and could limit the Company’s ability, through the Primary Beneficiaries, to enforce its rights under these contractual arrangements. Furthermore, shareholders of the VIEs may have interests that are different with those of the Company, which could potentially increase the risk that they would seek to act in contrary to the terms of the aforementioned agreements. In addition, if the current structure or any of the contractual arrangements were found to be in violation of any existing or future PRC laws, the Company may be subject to penalties, which may include but not be limited to, the cancellation or revocation of the Company’s business and operating licenses, being required to restructure the Company’s operations or discontinue the Company’s operating activities. The imposition of any of these or other penalties may result in a material and adverse effect on the Company’s ability to conduct its operations. In such case, the Company may not be able to operate or control the VIEs, which may result in deconsolidation of the VIEs.

The following tables set forth the financial statement balances and amounts of the VIEs and their subsidiaries which are included in the consolidated financial statements after the elimination of intercompany balances and transactions among VIEs and their subsidiaries within the Group:

	As of December 31, 2017		As of September 30, 2018
	RMB		RMB		US$
	(In millions)
			(unaudited)
Assets
Current
Cash and cash equivalents		4,045		1,365		199
Short-term investments		2,052		1,978		288
Accounts receivable, net		3,021		3,907		569
Others		5,280		4,381		638
		14,398		11,631		1,694
Non-current
Fixed assets, net		2,845		4,310		628
Intangible assets, net		2,104		3,528		514
Long-term investments, net		10,614		18,197		2,650
Others		6,488		10,710		1,559
		22,051		36,745		5,351
Total		36,449		48,376		7,045
Third-party liabilities
Current
Accounts payable and accrued liabilities		14,073		12,586		1,833
Customer advances and deposits		2,288		2,573		375
Others		2,414		7,849		1,143
		18,775		23,008		3,351
Non-current		5,151		5,128		747
Total		23,926		28,136		4,098
Inter-company liabilities*
Inter-company payable to subsidiaries for technology consulting and service fees		2,828		1,443		210
Others		4,605		9,184		1,337
Total		7,433		10,627		1,547

	For the three months ended
	September 30, 2017			September 30, 2018
	RMB			RMB			US$
	(In millions)
	(unaudited)
Total revenues		7,954			9,444			1,375
Net loss		(139	)		(805	)		(117	)
Net cash provided by (used in) operating activities		3,640			3,146			458
Net cash provided by (used in) investing activities		102			(8,597	)		(1,252	)
Net cash provided by (used in) financing activities		(2,502	)		1,728			252

	For the nine months ended
	September 30, 2017			September 30, 2018
	RMB			RMB			US$
	(In millions)
	(unaudited)
Total revenues		21,733			24,931			3,630
Net income (loss)		891			(4,892	)		(712	)
Net cash provided by (used in) operating activities		7,595			5,101			743
Net cash provided by (used in) investing activities		(3,123	)		(17,193	)		(2,503	)
Net cash provided by (used in) financing activities		(3,331	)		9,208			1,341

* Inter-company liabilities represent payable balances of each VIE due to subsidiaries within the Group pursuant to the technology consulting and service agreements. Other payables to non-VIE subsidiaries within the Group were included in third-party liabilities.

As of September 30, 2018, there was no pledge or collateralization of the VIEs’ assets other than those pledged under the equity pledge agreements with respect to the VIE contractual agreements. The amount of the net assets of the VIEs was RMB9.6 billion (US$1.4 billion) as of September 30, 2018. The creditors of the VIEs’ third-party liabilities did not have recourse to the general credit of the Company in the normal course of business. The Company did not provide or intend to provide financial or other supports not previously contractually required to the VIEs during the years presented.

Use of Estimates

Use of Estimates

The preparation of the unaudited interim condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the period. Management evaluates estimates, including those related to the standalone selling prices of performance obligations of revenue contracts, accounts receivable allowances, credit loss allowance for micro loan receivables, fair values of options to purchase the Company’s or its subsidiaries’ ordinary shares, fair values of certain debt and equity investments, amortization and impairment of licensed copyrights, impairment of long-lived assets, long-term investments and goodwill, the purchase price allocation and fair value of noncontrolling interests with respect to business combinations and acquisition of equity method investees, deferred tax valuation allowance, and redeemable noncontrolling interests, among others. Management bases the estimates on historical experience and on various other assumptions that are believed to be reasonable, the results of which form the basis for making judgments about the carrying values of assets and liabilities. Actual results could differ from these estimates.

Cash and Cash Equivalents

Cash and Cash Equivalents

Cash and cash equivalents primarily consist of cash, money market funds, and investments in interest bearing demand deposit accounts, time deposits and highly liquid investments with original maturities of three months or less from the date of purchase and are stated at cost which approximates their fair value.

Restricted Cash

Restricted Cash

Restricted cash mainly consists of the cash reserved in escrow accounts at certain banks as online payment service deposits.

In November 2016, the FASB issued Accounting Standards Update No. 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash, which requires companies to include amounts generally described as restricted cash and restricted cash equivalents in cash and cash equivalents when reconciling beginning-of-period and end-of-period total amounts presented in the statement of cash flows. The Company adopted the new standard effective January 1, 2018, using the retrospective transition method. All restricted cash was presented on the face of consolidated balance sheet as “Restricted cash;” there is no restricted cash or restricted cash equivalents presented elsewhere on the consolidated balance sheet.

Loan and Interest Receivables, net of allowance

Loan and Interest Receivables, net of allowance

Loan and interest receivables consist primarily of micro loans to individual borrowers. Such amounts are recorded at the principal net of allowance for credit losses relating to micro loans, and include accrued interest receivable as of the balance sheet date. The loan periods granted by the Company to the borrowers related to the micro loans generally range from one month to thirty-six months. The cash flows related to micro loans are included within the cash flows from investing activities category in the consolidated statement of cash flows. Allowance for credit losses relating to micro loans represent the Company’s best estimate of the losses inherent in the outstanding portfolio of loans. Judgment is required to determine the allowance amounts and whether such amounts are adequate to cover potential credit losses, and periodic reviews are performed to ensure such amounts continue to reflect the best estimate of the losses inherent in the outstanding portfolio of debts. The Company bases the allowance for loan and interest receivables credit losses primarily on historical loss experience using a roll rate-based model applied to the loan and interest receivables portfolios. The Company considers many factors, including but not limited to, the age of the amounts due, the payment history, the month of origination, the purpose of the loans, creditworthiness, financial conditions of the borrower, terms of the loans, regulatory environment, and the general economic conditions. In August, the Company completed the divestiture of its financial services business. Consequently, the loan and interest receivable balances were derecognized from the consolidated balance sheet upon disposal (Note 4).

Licensed Copyrights

Licensed Copyrights

Licensed copyrights consist of professionally-produced content such as movies, television series, variety shows, sports and other video content acquired from external parties. The license fees are capitalized and, unless prepaid, a corresponding liability recorded when cost of the content is known, the content has been accepted by us in accordance with the conditions of the license agreement and the content is available for its first showing on our internet platform. Licensed copyrights are carried at the lower of unamortized cost or net realizable value. The current and non-current portions of licensed copyrights of video content are recorded in “Other current assets, net” or “Intangible assets, net,” respectively. The licensed copyrights include non-exclusive licensed copyrights and exclusive licensed copyrights. With non-exclusive licensed copyrights, the Company has the right to broadcast the contents only on its internet platform. With exclusive licensed copyrights, in addition to the broadcasting rights, the Company also has the right to sublicense the contents to third parties.

Non-exclusive licensed copyrights, mainly comprising of newly released movies, television series and seasonal variety shows, are generally amortized using an accelerated method based on historical viewership consumption patterns. Other non-exclusive licensed copyrights, mainly comprising of library movies, television series and variety shows and certain non-episodic features, are amortized on a straight-line basis, as the consumption pattern based on historical viewing data supports this amortization method. Estimates of the consumption patterns for licensed copyrights are reviewed periodically and revised, if necessary. The major factors that impact the viewership consumption patterns include film box office, ratings for television series and variety shows, user traffic on our platforms, placement schedule, user tastes and preferences, emerging cultural trends, merchandising and marketing efforts. When the amortization pattern is revised, it is accounted for as a change in accounting estimate prospectively in accordance with ASC 250 (“ASC 250”), Accounting Changes and Error Corrections.

The purchase cost of exclusive licensed copyrights includes a broadcasting right and a right to sublicense to third parties. The Company allocates the content cost to these two rights when the exclusive licensed copyrights are initially recognized, based on the relative proportion of our estimate of the total revenues that will be generated by each right. For the broadcasting right, which is the portion of an exclusive licensed copyright that generates direct and indirect advertising and membership revenues, the content costs are amortized in accordance with ASC 920-350 (“ASC 920-350”), Entertainment-Broadcasters: Intangibles—Goodwill and Other, using the same method as non-exclusive licensed copyrights described above. For the right to sublicense to third parties, which is the portion of an exclusive licensed copyright that generates direct revenues, the content costs are amortized in accordance with ASC topic 926 (“ASC 926”), Entertainment—Films using an individual-film-forecast-computation method, which amortizes such costs based on the ratio of the actual sublicensing revenues generated for the current period to the total sublicensing revenues estimated to be generated by the sublicensing right. The Company revisits the forecasted total direct revenues on a periodic basis and any resulting changes to such estimates and the resulting amortization expense are accounted for prospectively as a change in accounting estimate in accordance with ASC 250.

On a periodic basis, the Company evaluates the program usefulness of the broadcasting rights of its licensed copyrights and record such rights at the lower of unamortized cost or estimated net realizable value pursuant to the guidance in ASC 920-350. When there is a change in the expected usage of licensed copyrights, the Company estimates net realizable value of licensed copyrights to determine if any impairment exists.

Net realizable value is determined by estimating the expected cash flows generated from the provision of online advertising and membership services, less any direct costs, over the remaining useful lives of non-exclusive licensed copyrights. The Company estimates advertising and membership cash flows for each category of the content. Estimates that impact advertising and membership cash flows include anticipated levels of demand for our online advertising and membership services and the expected selling prices of our advertisements and membership. For the right to sublicense to third parties, the Company assesses recoverability in accordance with ASC 926-20, Entertainment—Films: Other Assets—Film Costs.

Investments

Investments

Short-term investments

All highly liquid investments with original maturities of greater than three months, but less than twelve months, are classified as short-term investments. Investments that are expected to be realized in cash during the next twelve months are also included in short-term investments.

The Company accounts for short-term debt investments in accordance with ASC topic 320 (“ASC 320”), Investments — Debt Securities. The Company classifies the short-term investments in debt as “held-to-maturity” or “available-for-sale,” whose classification determines the respective accounting methods stipulated by ASC 320. Dividend and interest income, including amortization of the premium and discount arising at acquisition, for all categories of investments in securities are included in earnings. Any realized gains or losses on the sale of the short-term investments are determined on a specific identification method, and such gains and losses are reflected in earnings during the period in which gains or losses are realized. Debt investments not classified as trading or as held-to-maturity are classified as available-for-sale debt securities. Available-for-sale debt investments are reported at fair value, with unrealized gains and losses recorded in “Accumulated other comprehensive income.” An impairment loss on the available-for-sale debt securities is recognized in the consolidated statements of comprehensive income when the decline in value is determined to be other-than-temporary.

The securities that the Company has the positive intent and the ability to hold to maturity are classified as held-to-maturity securities and stated at amortized cost. For individual securities classified as held-to-maturity securities, the Company evaluates whether a decline in fair value below the amortized cost basis is other-than-temporary in accordance with the Company’s accounting policy and ASC 320. The other-than-temporary impairment loss is recognized in earnings equal to the entire excess of the debt security’s amortized cost basis over its fair value at the balance sheet date of the reporting period for which the assessment is made.

In accordance with ASC 320, the securities that are bought and held principally for the purpose of selling them in the near term are classified as trading securities. Unrealized holding gains and losses for trading securities are included in earnings.

Other invested securities

Other invested securities represent investments purchased by the Company for its financial services business which are resold to third-party investors. These transactions do not meet the requirements of asset derecognition in accordance with ASC topic 860 (“ASC 860”), Transfers and Servicing. The Company records the proceeds related to these transactions as secured borrowings included in “Amounts due to the third-party investors” on the consolidated balance sheets, and assets pledged are included in “Other invested securities” on the consolidated balance sheets. Other invested securities are issued by financial institutions and have a variable rate of return that is indexed to the performance of underlying assets. The Company initially records these investments at cost, which approximates its fair value at inception and subsequently records these investments at fair value. Changes in the fair value are reflected in earnings. The Cash flows related to purchases and maturities of other invested securities are classified as cash flows from investing activities, while proceeds and payments related to the sales and purchases of financial products are classified as cash flows from financing activities in the consolidated statements of cash flows. All other invested securities balances were derecognized from the consolidated balance sheet upon disposal (Note 4).

Long-term investments

The Company’s long-term investments consist of equity investments with readily determinable fair value, equity investments without readily determinable fair value, equity method investments, and other investments accounted for at fair value.

Prior to adopting ASC topic 321 (“ASC 321”), Investments — Equity Securities on January 1, 2018, the Company carries at cost its investments in investees which do not have readily determinable fair value and the Company does not have significant influence in accordance with ASC subtopic 325-20 (“ASC 325-20”), Investments-Other: Cost Method Investments. The Company only adjusts the carrying value of such investments for other-than-temporary declines in fair value and distributions of earnings that exceed the Company’s share of earnings since its investment.

Management regularly evaluates the impairment of the cost method investments based on the performance and financial position of the investee as well as other evidence of market value. Such evaluation includes, but is not limited to, reviewing the investee’s cash position, recent financing, projected and historical financial performance, cash flow forecasts and financing needs. An impairment loss is recognized in earnings equal to the excess of the investment’s cost over its fair value at the balance sheet date of the reporting period for which the assessment is made. The fair value would then become the new cost basis of the investment.

The Company adopted ASC 321 on January 1, 2018 and the cumulative effect of RMB1.9 billion (US$270 million) was recorded as an adjustment to the opening retained earnings. Equity investments, except for those accounted for under the equity method, those that result in consolidation of the investee and certain other investments, are measured at fair values, and any changes in fair value are recognized in earnings. For equity securities without readily determinable fair values and do not qualify for the existing practical expedient in ASC 820 (“ASC 820”), Fair Value Measurements and Disclosures to estimate fair value using the net asset value per share (or its equivalent) of the investment, the Company elected to use the measurement alternative to measure those investments at cost, less any impairment, plus or minus changes resulting from observable price changes in orderly transactions for identical or similar investments of the same issuer, if any. Equity securities with readily determinable fair values are measured at fair values, and any changes in fair value are recognized in earnings. Unrealized gains before adopting ASC 321 were recorded in “Accumulated other comprehensive income,” which has been reclassified to the opening balance of retained earnings.

Investments in entities in which the Company can exercise significant influence but does not own a majority equity interest or control are accounted for using the equity method of accounting in accordance with ASC topic 323 (“ASC 323”), Investments-Equity Method and Joint Ventures. Under the equity method, the Company initially records its investment at cost and the difference between the cost of the equity investee and the fair value of the underlying equity in the net assets of the equity investee is recognized as equity method goodwill, which is included in the equity method investment on the consolidated balance sheets. The Company subsequently adjusts the carrying amount of its investment to recognize the Company’s proportionate share of each equity investee’s net income or loss into earnings. The Company will discontinue applying the equity method if an investment (and additional financial supports provided to the investee, if any) has been reduced to zero. When the Company has other investments in its equity-method investee and is not required to advance additional funds to that investee, the Company would continue to report its share of equity method losses in its statement of comprehensive income after its equity-method investment in ordinary shares has been reduced to zero, to the extent of and as an adjustment to the adjusted basis of the Company’s other investments in the investee. Such losses are first applied to those investments of a lower liquidation preference before being further applied to the investments of a higher liquidation preference. The Company evaluates the equity method investments for impairment under ASC 323. An impairment loss on the equity method investments is recognized in earnings when the decline in value is determined to be other-than-temporary.

In accordance with ASC 946-320 Financial Services—Investment Companies, Investments—Debt and Equity Securities, the Company accounts for long-term equity investments in unlisted companies held by consolidated investment companies at fair value. These investments were initially recorded at their transaction price net of transaction costs, if any. Fair value of these investments are re-measured periodically in accordance with ASC 820. These equity investments are classified within Level 3 in the fair value hierarchy, and changes in fair value are recorded in the consolidated statements of comprehensive income in the period the change occurs.

Revenue Recognition

Revenue Recognition

The Company adopted ASC topic 606 (“ASC 606”), Revenue from Contracts with Customers from January 1, 2018, using the modified retrospective method. Revenues for the three-month and nine-month periods ended September 30, 2018 were presented under ASC 606, and revenues for the three-month and nine-month periods ended September 30, 2017 were not adjusted and continue to be presented under ASC topic 605, Revenue Recognition. The cumulative effect of adopting ASC 606 resulted in an increase RMB967 million (US$141 million) to the opening balance of retained earnings at January 1, 2018.

Commencing on January 1, 2018, the Company recognizes revenue in accordance with ASC 606. Revenue is recognized when control of promised goods or services is transferred to the Company’s customers in an amount of consideration to which an entity expects to be entitled to in exchange for those goods or services. Starting from January 1, 2018, pursuant to ASC 606, value added taxes (“VAT”) was reclassified from cost of revenue to net against revenues. The Company recognized VAT of RMB1.3 billion and RMB1.7 billion (US$244 million) for the three-month periods ended September 30, 2017 and 2018, respectively, and RMB3.4 billion and RMB 4.5 billion (US$652 million) for the nine-month periods ended September 30, 2017 and 2018, respectively.

The following table presents the Company’s revenues disaggregated by revenue source:

	For the three months ended
	September 30, 2017		September 30, 2018		September 30, 2018
	RMB		RMB		US$
	(In millions)
	(unaudited)
Online marketing		20,108		22,481		3,273
iQIYI membership service		1,697		2,852		415
iQIYI content distribution		276		835		122
Interest income earned from provision of financial services		495		408		59
Others		913		1,627		237
Other revenue		3,381		5,722		833
Total revenue		23,489		28,203		4,106

	For the nine months ended
	September 30, 2017		September 30, 2018		September 30, 2018
	RMB		RMB		US$
	(In millions)
	(unaudited)
Online marketing		52,729		60,715		8,840
iQIYI membership service		4,607		7,421		1,081
iQIYI content distribution		958		1,641		239
Interest income earned from provision of financial services		1,029		1,724		251
Others		1,931		3,581		521
Other revenue		8,525		14,367		2,092
Total revenue		61,254		75,082		10,932

The Company’s revenue recognition policies effective on the adoption date of ASC 606 are as follows:

Performance-based online marketing services

Cost-per-click

The Company’s auction-based pay-for-performance (“P4P”) platform enables a customer to place its website link and related description on the Company’s search result list on the platform which could be accessed through personal computer or mobile devices. Customers make bids on keywords based on how much they are willing to pay for each click to their listings in the search results listed on the Company’s platform and the relevance between the keywords and the customer’s businesses. Internet users’ search of the keyword will trigger the display of the listings. The ranking of the customer’s listing depends on both the bidding price and the listing’s relevance to the keyword searched. Customers pay the Company only when a user clicks on one of its website links.

Besides the Company’s traditional auction-based P4P services, the Company also displays in-feed marketing to targeted users through Baidu Feed. Customers pay the Company when a targeted user clicks the in-feed marketing and are directed to its platforms.

Revenue is recognized when all of the revenue recognition criteria set forth in ASC 606 are met, which is generally when a user clicks on one of the customer-sponsored links or in-feed marketing.

Other performance-based online marketing services

To the extent the Company provides online marketing services based on performance criteria other than cost-per-click, such as the number of downloads (and user registration) of mobile apps and the pre-determined ratios of completed transaction volumes, revenue is recognized when the specified performance criteria are met along with the satisfaction of other applicable revenue recognition criteria as prescribed by ASC 606.

Display advertisements

The Company provides display-based online advertising services to its customers by integrating text description, image and video, and displaying the advertisement in a prominent position of the search result page, vertical search products or Baidu Feed. The Company recognizes revenue in accordance with ASC 606, on a pro-rata basis over the contractual term for cost per time advertising arrangements commencing on the date the customer’s advertisement is displayed on the Company’s platform, or based on the number of times that the advertisement has been displayed for cost per thousand impressions advertising arrangements.

Online marketing services involving Baidu Union

Baidu Union is a program through which the Company expands distribution of its customers’ sponsored links or advertisements by leveraging the traffic of Baidu Union members’ internet properties. The Company makes payments to Baidu Union members for the acquisition of traffic. The Company is the principal in these transactions, as it is primarily responsible for fulfilling the service, has discretion in establishing pricing and controls the advertising inventory before the transfer to customers. Therefore, revenue is recognized on a gross basis on the amount of fees it billed to its customers. Payments made to Baidu Union members are recorded as traffic acquisition costs, which are included in “Cost of revenues” in the consolidated statements of comprehensive income.

Membership services

The Company offers membership services that provide subscribing members access to stream a library of premium content in exchange for upfront non-refundable membership fees. Membership periods range from one month to twelve months. The receipt of membership fees is initially recorded as deferred revenue, and revenue is recognized ratably over the membership period when services are rendered.

Content distribution

The Company generates revenues from sub-licensing content licensed from third party vendors for cash and through nonmonetary exchanges, mainly with other online video broadcasting companies. The exclusive licensing agreements the Company enters into with vendors has a definitive license period and provides the Company the rights to sub-license these contents to other third parties. The Company enters into a non-exclusive sub-license agreement with a sub-licensee for a period that falls within the original exclusive license period. For cash sub-licensing transactions, the Company receives the sub-license fee upfront under the sub-licensing arrangements and does not have any future obligation once it has provided the underlying content to the sub-licensee (which is provided at or before the beginning of the sub-license period). The sub-license fees are recognized in accordance with ASC 606 and represents a license of functional intellectual property that grants the right to use the Company’s licensed copyrights, and revenue is recognized when the licensed copyright is made available for the customer’s use and benefit. The attributable cost of cash sublicensing transactions are recognized as cost of revenues through the amortization of the sublicensing right component of the exclusive licensed copyright, computed using the individual-film-forecast-computation method in accordance with ASC 926.

The Company enters into nonmonetary transactions to exchange online broadcasting rights of licensed copyrights with other online video broadcasting companies from time to time. The exchanged licensed copyrights provide rights for each party to broadcast the licensed copyrights received on its own website only. Each transferring party retains the right to continue broadcasting the exclusive content on its own website and/or sublicense the rights to the content it surrendered in the exchange. The Company accounts for these nonmonetary exchanges in accordance with ASC 606, and records the transaction based on the fair value of the asset received starting from January 1, 2018. Barter sublicensing revenue are recognized in accordance with the same ASC 606 criteria above. The Company estimates the fair value of the licensed copyrights received based on various factors, including broadcasting schedule, cast and crew, theme and popularity, box office and market share of counterparties to the exchange.

The Company recognized barter sublicensing revenues of RMB198 million and RMB503 million (US$73 million) and related costs of RMB193 million and RMB523 million (US$76 million) for the three-month periods ended September 30, 2017 and 2018, respectively. The Company recognized barter sublicensing revenues of RMB708 million and RMB824 million (US$120 million) and related costs of RMB596 million and RMB818 million (US$119 million) for the nine-month periods ended September 30, 2017 and 2018, respectively.

Financial services

The Company offers financial services which include provision of installment payment services to consumers and wealth management services to third-party investors. Interest income earned from provision of financial services is reported as “Other revenues” and reported on a net basis after deduction of related interest costs incurred. The Company recognized gross interest income of RMB1.1 billion and RMB616 million (US$90 million) and interest costs of RMB580 million and RMB208 million (US$30 million) for the three-month periods ended September 30, 2017 and 2018, respectively. The Company recognized gross interest income of RMB2.3 billion and RMB 3.3 billion (US$483 million) and interest costs of RMB1.2 billion and RMB1.6 billion (US$232 million) for the nine-month periods ended September 30, 2017 and 2018, respectively. The financial services business was disposed during the three-months ended September 30, 2018 (Note 4).

Barter transactions

The Company engages in certain barter transactions other than licensed copyrights of video contents, such as advertising, from time to time, and in such situations, follows the guidance set forth in ASC 606. The transaction price of the nonmonetary consideration is measured at fair value at contract inception. If fair value cannot be reasonably estimated, the Company measures the consideration indirectly by reference to the standalone selling price of the services promised to the customer in exchange for the consideration.

Other revenue recognition related policies

In accordance with ASC 606, for arrangements that include multiple performance obligations, primarily for advertisements to be displayed in different spots, placed under different forms and displayed at different times, the Company would evaluate all the performance obligations in the arrangement to determine whether each performance obligation is distinct. Consideration is allocated to each performance obligation based on its standalone selling price. If a promised good or service does not meet the criteria to be considered distinct, it is combined with other promised goods or services until a distinct bundle of goods or services exists.

When either party to a revenue contract has performed, the Company presents the contract in the consolidated balance sheets as a contract asset or a contract liability, depending on the relationship between the entity’s performance and the customer’s payment. Contract liabilities were presented as deferred revenue on the consolidated balance sheets. The increase in deferred revenue as compared to the year ended December 31, 2017 is a result of the increase in consideration received from the Company’s customers.

The Company does not disclose the value of unsatisfied performance obligations for (i) contracts with an original expected length of one year or less and (ii) contracts for which the Company recognizes revenue at the amount to which it has the right to invoice for services performed.

The opening balance of contract assets were RMB832 million as of January 1, 2018. As of September 30, 2018, contract assets of RMB1.6 billion (US$233 million) were recognized and included in “Other current assets, net” on the consolidated balance sheet.

The Company provides sales incentives to customers which entitle them to receive reductions in the price of the online marketing services by meeting certain cumulative consumption requirements. The Company accounts for these incentives granted to customers as variable consideration in accordance with ASC 606. The amount of variable consideration is measured based on the most likely amount of incentives to be provided to customers.

Fair Value Measurements of Financial Instruments

Fair Value Measurements of Financial Instruments

Financial instruments are in the form of cash and cash equivalents, restricted cash, short-term investments, other invested securities, accounts receivable, loan and interest receivables, amounts due from and due to related parties, other receivables, long-term investments, short-term loans, accounts payable and accrued liabilities, customer advances and deposits, derivative instruments, notes payable and long-term loans. The carrying amounts of these financial instruments, except for long-term equity investments without readily determinable fair values, long-term equity method investments, long-term notes payable and long-term loans, approximate their fair values because of their generally short maturities. Long-term equity investments with readily determinable fair values, other invested securities, investments accounted for at fair value, and derivative instruments are adjusted to fair value at each reporting date. The carrying amounts of long-term loans approximate fair values as the related interest rates approximate rates currently offered by financial institutions for similar debt instruments of comparable maturities. Fair value of notes payable is extracted directly from the quoted market price.

Segment Reporting

Segment Reporting

Starting from April 2017, Search Services and Transaction Services were combined into one segment, namely, Baidu Core. The change in reportable segments reflects the Company’s strategic shift and the operational change to de-emphasize its transaction services business and shift such resources to support its online marketing services. As of December 31, 2017 and September 30, 2018, the Company had two reportable segments, Baidu Core and iQIYI. Baidu Core mainly provides keyword-based marketing services targeted at and triggered by internet users’ search queries, which mainly include P4P services, other online marketing services, and artificial intelligence-enabled new business initiatives. iQIYI is an online entertainment service provider that, offers original, professionally produced and partner-generated content on its platform. In early April 2018, iQIYI completed its initial public offering (“IPO”) on the Nasdaq Global Market.

The Company’s chief executive officer, who has been identified as the chief operating decision marker (“CODM”) reviews the operating results of Baidu Core and iQIYI in order to allocate resources and assess the Company’s performance. Accordingly, the financial statements include segment information which reflects the current composition of the reportable segments in accordance with ASC topic 280, Segment Reporting.

Goodwill

Goodwill

The Company assesses goodwill for impairment in accordance with ASC subtopic 350-20 (“ASC 350-20”), Intangibles – Goodwill and Other: Goodwill, which requires goodwill to be tested for impairment at the reporting unit level at least annually and more frequently upon the occurrence of certain events, as defined by ASC 350-20. As of December 31, 2017 and September 30, 2018, goodwill was allocated to the Company’s two reporting units, Baidu Core and iQIYI, respectively.

Contingencies

Contingencies

The Company records accruals for certain of its outstanding legal proceedings or claims when it is probable that a liability will be incurred and the amount of loss can be reasonably estimated. The Company evaluates, on a quarterly basis, developments in legal proceedings or claims that could affect the amount of any accrual, as well as any developments that would make a loss contingency both probable and reasonably estimable. The Company discloses the amount of the accrual if it is material.

When a loss contingency is not both probable and estimable, the Company does not record an accrued liability but discloses the nature and the amount of the claim if material. However, if the loss (or an additional loss in excess of the accrual) is at least reasonably possible, then the Company discloses an estimate of the loss or range of loss, if such estimate can be made and is considered material, or discloses that an estimate cannot be made. The assessment of whether a loss is probable or reasonably possible, and whether the loss or a range of loss is estimable, often involves complex judgments about future events. Management is often unable to estimate the loss or a range of loss, particularly where (i) the damages sought are indeterminate, (ii) the proceedings are in the early stages, or (iii) there is lacks clear or consistent interpretation of laws specific to the industry-specific complaints across different jurisdictions. In such cases, there are considerable uncertainties regarding the timing or ultimate resolution of such matters, including eventual loss, fine, penalty or business impact, if any.

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Basis Of Presentation (Tables)

9 Months Ended

Sep. 30, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Financial Statement Balances and Amounts of VIEs and Subsidiaries Included in Consolidated Financial Statements After Elimination of Intercompany Balances and Transactions Among VIEs and Subsidiaries within Group

The following tables set forth the financial statement balances and amounts of the VIEs and their subsidiaries which are included in the consolidated financial statements after the elimination of intercompany balances and transactions among VIEs and their subsidiaries within the Group:

	As of December 31, 2017		As of September 30, 2018
	RMB		RMB		US$
	(In millions)
			(unaudited)
Assets
Current
Cash and cash equivalents		4,045		1,365		199
Short-term investments		2,052		1,978		288
Accounts receivable, net		3,021		3,907		569
Others		5,280		4,381		638
		14,398		11,631		1,694
Non-current
Fixed assets, net		2,845		4,310		628
Intangible assets, net		2,104		3,528		514
Long-term investments, net		10,614		18,197		2,650
Others		6,488		10,710		1,559
		22,051		36,745		5,351
Total		36,449		48,376		7,045
Third-party liabilities
Current
Accounts payable and accrued liabilities		14,073		12,586		1,833
Customer advances and deposits		2,288		2,573		375
Others		2,414		7,849		1,143
		18,775		23,008		3,351
Non-current		5,151		5,128		747
Total		23,926		28,136		4,098
Inter-company liabilities*
Inter-company payable to subsidiaries for technology consulting and service fees		2,828		1,443		210
Others		4,605		9,184		1,337
Total		7,433		10,627		1,547

	For the three months ended
	September 30, 2017			September 30, 2018
	RMB			RMB			US$
	(In millions)
	(unaudited)
Total revenues		7,954			9,444			1,375
Net loss		(139	)		(805	)		(117	)
Net cash provided by (used in) operating activities		3,640			3,146			458
Net cash provided by (used in) investing activities		102			(8,597	)		(1,252	)
Net cash provided by (used in) financing activities		(2,502	)		1,728			252

	For the nine months ended
	September 30, 2017			September 30, 2018
	RMB			RMB			US$
	(In millions)
	(unaudited)
Total revenues		21,733			24,931			3,630
Net income (loss)		891			(4,892	)		(712	)
Net cash provided by (used in) operating activities		7,595			5,101			743
Net cash provided by (used in) investing activities		(3,123	)		(17,193	)		(2,503	)
Net cash provided by (used in) financing activities		(3,331	)		9,208			1,341

* Inter-company liabilities represent payable balances of each VIE due to subsidiaries within the Group pursuant to the technology consulting and service agreements. Other payables to non-VIE subsidiaries within the Group were included in third-party liabilities.

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Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2018

Accounting Policies [Abstract]

Summary of Revenues Disaggregated by Revenue Source

The following table presents the Company is revenues disaggregated by revenue source:

	For the three months ended
	September 30, 2017		September 30, 2018		September 30, 2018
	RMB		RMB		US$
	(In millions)
	(unaudited)
Online marketing		20,108		22,481		3,273
iQIYI membership service		1,697		2,852		415
iQIYI content distribution		276		835		122
Interest income earned from provision of financial services		495		408		59
Others		913		1,627		237
Other revenue		3,381		5,722		833
Total revenue		23,489		28,203		4,106

	For the nine months ended
	September 30, 2017		September 30, 2018		September 30, 2018
	RMB		RMB		US$
	(In millions)
	(unaudited)
Online marketing		52,729		60,715		8,840
iQIYI membership service		4,607		7,421		1,081
iQIYI content distribution		958		1,641		239
Interest income earned from provision of financial services		1,029		1,724		251
Others		1,931		3,581		521
Other revenue		8,525		14,367		2,092
Total revenue		61,254		75,082		10,932

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Investments (Tables)

9 Months Ended

Sep. 30, 2018

Debt Securities, Trading, Gain (Loss) [Abstract]

Schedule of Unrealized Gains and Losses of Equity Securities Without Readily Determinable Fair Values

Unrealized gains and losses of equity securities without readily determinable fair values for the three-month and nine-month periods ended September 30, 2018 were as follows:

	For the three months ended September 30, 2018						For the nine months ended September 30, 2018
	RMB			US$			RMB			US$
	(In millions)
Gross unrealized gains (upward adjustments)		1,059			154			6,463			941
Gross unrealized losses (downward adjustments excluding impairment)		(78	)		(11	)		(2,280	)		(332	)

Schedule of Unrealized Gains and Losses of Equity Securities Without Readily Determinable Fair Values Recognized

Realized and unrealized gains and losses for equity securities without readily determinable fair values recognized for the three-month and nine-month periods ended September 30, 2018 were as follows:

	For the three months ended September 30, 2018				For the nine months ended September 30, 2018
	RMB		US$		RMB		US$
	(In millions)
Net realized gains and losses on equity securities sold		—		—		124		18
Net unrealized gains and losses on equity securities held		981		143		4,183		609
Total net gains recognized in other income		981		143		4,307		627

Schedule of Investments at Amortized Cost and Fair Value

Investments classification as of December 31, 2017 and September 30, 2018 were shown as below:

	As of December 31, 2017
	Cost or Amortized cost		Gross unrecognized holding gains		Gross unrecognized holding losses			Gross unrealized gains		Gross unrealized losses			Fair value
	RMB		RMB		RMB			RMB		RMB			RMB
	(In millions)
Short-term investments:
Held-to-maturity debt investments		48,666		47		(18	)		—		—			48,695
Available-for-sale debt investments		40,139							581		(5	)		40,715
Other invested securities:		18,289		—		—			169		(108	)		18,350
Long-term investments:
Available-for-sale equity investments		2,077		—		—			742		(46	)		2,773
Investments accounted for at fair value		307		—		—			14		—			321

	As of September 30, 2018
	Cost or Amortized cost		Gross unrecognized holding gains		Gross unrecognized holding losses		Gross unrealized gains		Gross unrealized loss			Fair value
	RMB		RMB		RMB		RMB		RMB			RMB		US$
	(In millions)
Short-term investments:
Held-to-maturity debt investments		31,939		166		—		—		—			32,105		4,675
Available-for-sale debt investments		55,520		—		—		1,313		(56	)		56,777		8,267
Long-term investments:
Equity investments at fair value with readily determinable fair value		4,808		—		—		1,022		(827	)		5,003		728
Available-for-sale debt investments		2,000		—		—		23		—			2,023		294
Investments accounted for at fair value		977		—		—		302		—			1,279		186

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Changes in Equity and Redeemable Noncontrolling Interests (Tables)

9 Months Ended

Sep. 30, 2018

Federal Home Loan Banks [Abstract]

Summary of Changes in Equity and Redeemable Noncontrolling Interests

	Accumulated other comprehensive income			Non-controlling interests			Total shareholders’ equity			Redeemable non-controlling interests
					RMB			RMB			RMB			RMB			RMB			RMB			RMB
Balance at December 31, 2017		34,816,232				—			12,088			102,328			930			4,004			119,350			11,022
Cumulative effect of accounting change		—				—			—			2,821			(1,854	)		—			967			—
Net income (loss)		—				—			—			25,492			—			(3,478	)		22,014			—
Other comprehensive income (loss)		—				—			—			—			1,323			1,007			2,330			—
Business combination		—				—			75			—			—			938			1,013			—
Issuance of subsidiary shares		—				—			14,990			—			—			(822	)		14,168			—
Exercise of share-based awards		246,989				—			685			—			—			1			686			—
Share-based compensation		—				—			2,929			—			—			119			3,048			—
Accretion of redeemable non-controlling interests		—				—			—			(128	)		—			—			(128	)		128
Disposal of a subsidiary’s shares		—				—			1,323			—			—			235			1,558			—
Repurchase and retirement of ordinary shares		(207,165	)			—			—			(3,312	)		—			—			(3,312	)		—
Conversion of iQIYI preferred shares recognized as redeemable noncontrolling interests to ordinary shares		—				—			—			—			—			11,150			11,150			(11,150	)
Balance at September 30, 2018 (RMB)		34,856,056				—			32,090			127,201			399			13,154			172,844			—
Balance at September 30, 2018 (US$)						—			4,672			18,521			58			1,915			25,166			—

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Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2018

Fair Value Disclosures [Abstract]

Fair Value Disclosure and Measurement on Recurring Basis

Assets and liabilities measured at fair value on a recurring basis or disclosed at fair value are summarized below:

			Fair value measurement or disclosure at December 31, 2017
	Total fair value at December 31, 2017		Quoted prices in active markets for identical assets (Level 1)		Significant other observable inputs (Level 2)		Significant unobservable inputs (Level 3)
	RMB		RMB		RMB		RMB
	(In millions)
Fair value disclosure
Cash equivalents
Time deposits		130				130
Money market funds		2,384		2,384
Short-term investments
Held-to-maturity debt investments		48,695				48,695
Long-term notes payable		35,943				35,943
Fair value measurement
Short-term investments
Available-for-sale debt investments		40,715				40,715
Other invested securities		18,350				18,350
Long-term investments
Available-for-sale equity investments		2,773		2,773
Investments accounted for at fair value		321						321
Other non-current assets
Derivative instruments		168				168
Total assets measured at fair value		62,327		2,773		59,233		321

					Fair value measurement or disclosure at September 30, 2018
	Total fair value at September 30, 2018				Quoted prices in active markets for identical assets (Level 1)		Significant other observable inputs (Level 2)		Significant unobservable inputs (Level 3)
	(RMB)		(US$)		(RMB)		(RMB)		(RMB)
	(In millions)
Fair value disclosure
Cash equivalents
Time deposits		1,498		218				1,498
Money market fund		2,672		389		2,672
Short-term investments:
Held-to-maturity debt investments		32,105		4,675				32,105
Long-term notes payable		40,328		5,872				40,328
Fair value measurement
Short-term investments:
Available-for-sale debt investments		50,161		7,304				50,161
Long-term investments:
Equity investments at fair value with readily determinable fair value		5,003		728		5,003
Investment accounted for at fair value		1,279		186						1,279
Other non-current assets
Derivative instruments		296		43				277		19
Accounts payable and accrued liabilities
Derivative instruments		123		18						123
Amounts due to related parties, non-current
Financial liability		347		51				347
Net assets measured at fair value		56,269		8,192		5,003		50,091		1,175

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Share-Based Compensation Expenses (Tables)

9 Months Ended

Sep. 30, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Total Share-Based Compensation Expenses Recognized

Total share-based compensation expenses recognized for the three-month and nine-month periods ended September 30, 2017 and 2018 have been reported as follows:

	For the three months ended
	September 30, 2017		September 30, 2018		September 30, 2018
	RMB		RMB		US$
	(In millions)
	(unaudited)
Cost of revenues		53		58		9
Selling, general and administrative		252		545		79
Research and development		536		636		92
		841		1,239		180

	For the nine months ended
	September 30, 2017		September 30, 2018		September 30, 2018
	RMB		RMB		US$
	(In millions)
	(unaudited)
Cost of revenues		137		153		22
Selling, general and administrative		675		1,138		166
Research and development		1,456		1,843		268
		2,268		3,134		456

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Fixed Assets (Tables)

9 Months Ended

Sep. 30, 2018

Property, Plant and Equipment [Abstract]

Fixed Assets

Fixed assets and the related accumulated depreciation as of December 31, 2017 and September 30, 2018 are as follows:

	As of December 31, 2017			As of September 30, 2018			As of September 30, 2018
	RMB			RMB			US$
	(In millions)
	(unaudited)
Computer equipment		18,354			23,539			3,427
Office building		4,003			4,163			606
Office building related facility machinery and equipment		1,956			2,166			315
Vehicles		80			162			24
Office equipment		690			747			109
Leasehold improvements		341			341			50
Construction in progress		680			693			101
		26,104			31,811			4,632
Accumulated depreciation		(13,629	)		(15,614	)		(2,274	)
		12,475			16,197			2,358

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Notes Payable (Tables)

9 Months Ended

Sep. 30, 2018

Debt Disclosure [Abstract]

Principal Amount and Unamortized Discount and Debt Issuance Costs

The principal amount and unamortized discount and debt issuance costs as of December 31, 2017 and September 30, 2018 are as follows:

	As of December 31, 2017			As of September 30, 2018			As of September 30, 2018
	RMB			RMB			US$
	(In millions)
				(unaudited)
Principal amount		35,782			41,207			5,999
Unamortized discount and debt issuance cost		(171	)		(209	)		(30	)
		35,611			40,998			5,969

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Accumulated Other Comprehensive (Loss)/Income (Tables)

9 Months Ended

Sep. 30, 2018

Equity [Abstract]

Changes in Accumulated Other Comprehensive (Loss) Income by Component, Net of Tax

The changes in accumulated other comprehensive (loss) income by component, net of tax, are as follows:

	Foreign currency translation adjustments			Unrealized gains on available-for- sale investments			Total
	RMB			RMB			RMB
	(In millions)
	(unaudited)
Balance at December 31, 2016		(2,022	)		239			(1,783	)
Other comprehensive income before reclassification		974			1,406			2,380
Amounts reclassified from accumulated other comprehensive income (loss)		48			(767	)		(719	)
Net current-period other comprehensive income		1,022			639			1,661
Other comprehensive income (loss) attributable to noncontrolling interests and redeemable noncontrolling interests		192			—			192
Balance at September 30, 2017		(808	)		878			70
Balance at December 31, 2017		(888	)		1,818			930
Cumulative effect of accounting change *		—			(1,854	)		(1,854	)
Other comprehensive income before reclassification		79			3,529			3,608
Amounts reclassified from accumulated other comprehensive income		80			(1,358	)		(1,278	)
Net current-period other comprehensive income		159			317			476
Other comprehensive income (loss) attributable to noncontrolling interests and redeemable noncontrolling interests		(992	)		(15	)		(1,007	)
Balance at September 30, 2018		(1,721	)		2,120			399
Balance at September 30, 2018, in US$		(251	)		309			58

* Adjustment of net unrealized gains related to available-for-sale equity investments from accumulated other comprehensive income to opening retained earnings as a result of the adoption of ASC 321 on January 1, 2018.

Tax Effect Allocated to Each Component of Other Comprehensive Income

The following table sets forth the tax effect allocated to each component of other comprehensive income:

	For the three months ended
	September 30, 2017			September 30, 2018			September 30, 2018
	RMB			RMB			US$
	(In millions)
	(unaudited)
Unrealized gains on available-for-sale investments
Other comprehensive loss before reclassification		(86	)		(106	)		(15	)
Amounts reclassified from accumulated other comprehensive income		50			101			14
Net current-period other comprehensive loss		(36	)		(5	)		(1	)

	For the nine months ended
	September 30, 2017			September 30, 2018			September 30, 2018
	RMB			RMB			US$
	(In millions)
	(unaudited)
Unrealized gains on available-for-sale investments
Other comprehensive loss before reclassification		(175	)		(302	)		(44	)
Amounts reclassified from accumulated other comprehensive income		126			206			30
Net current-period other comprehensive loss		(49	)		(96	)		(14	)

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Earnings Per Share ("EPS") (Tables)

9 Months Ended

Sep. 30, 2018

Earnings Per Share [Abstract]

Reconciliation of Net Income to Numerator for Computation of Basic and Diluted Earnings Per Share

A reconciliation of net income attributable to Baidu, Inc. in the unaudited interim condensed consolidated statements of comprehensive income to the numerator for the computation of basic and diluted earnings per share for the three-month periods ended September 30, 2017 and 2018 is as follows:

	For the three months ended
	September 30, 2017		September 30, 2018		September 30, 2018
	RMB		RMB		US$
	(In millions)
	(unaudited)
Net income attributable to Baidu, Inc.		7,949		12,396		1,805
Accretion of the redeemable noncontrolling interests		466		—		—
Net income available to ordinary shareholders		8,415		12,396		1,805

A reconciliation of net income attributable to Baidu, Inc. in the unaudited interim condensed consolidated statements of comprehensive income to the numerator for the computation of basic and diluted earnings per share for the nine-month periods ended September 30, 2017 and 2018 is as follows:

	For the nine months ended
	September 30, 2017			September 30, 2018			September 30, 2018
	RMB			RMB			US$
	(In millions)
	(unaudited)
Net income attributable to Baidu, Inc.		14,141			25,492			3,711
Accretion of the redeemable noncontrolling interests		(173	)		(128	)		(19	)
Net income available to ordinary shareholders		13,968			25,364			3,692

Computation of Basic and Diluted Net Income Per Class A and Class B Ordinary Share

The following table sets forth the computation of basic and diluted net income attributable to Baidu, Inc. per Class A and Class B ordinary share for the three-month periods ended September 30, 2017 and 2018

	For the three months ended
	September 30, 2017				September 30, 2018
	Class A		Class B		Class A		Class A		Class B		Class B
	RMB		RMB		RMB		US$		RMB		US$
	(In millions, except for number of shares, per share and per ADS data)
	(unaudited)
Earnings per share — basic:
Numerator
Allocation of net income available to ordinary shareholders		6,666		1,749		9,838		1,432		2,558		373
Denominator
Weighted average ordinary shares outstanding		27,489,083		7,214,841		27,690,479		27,690,479		7,201,254		7,201,254
Denominator used for earnings per share		27,489,083		7,214,841		27,690,479		27,690,479		7,201,254		7,201,254
Earnings per share — basic		242.48		242.48		355.27		51.73		355.27		51.73
Earnings per share — diluted:
Numerator
Allocation of net income available to ordinary shareholders		6,680		1,735		9,857		1,435		2,539		370
Reallocation of net income available to ordinary shareholders as a result of conversion of Class B to Class A shares		1,735		—		2,539		370		—		—
Allocation of net income available to ordinary shareholders		8,415		1,735		12,396		1,805		2,539		370
Denominator
Weighted average ordinary shares outstanding		27,489,083		7,214,841		27,690,479		27,690,479		7,201,254		7,201,254
Conversion of Class B to Class A ordinary shares		7,214,841		—		7,201,254		7,201,254		—		—
Share-based awards		287,253		—		267,014		267,014		—		—
Denominator used for earnings per share		34,991,177		7,214,841		35,158,747		35,158,747		7,201,254		7,201,254
Earnings per share — diluted		240.49		240.49		352.57		51.34		352.57		51.34
Earnings per ADS:
Denominator used for earnings per ADS — basic		274,890,830				276,904,790		276,904,790
Denominator used for earnings per ADS — diluted		349,911,770				351,587,470		351,587,470
Earnings per ADS — basic		24.25				35.53		5.17
Earnings per ADS — diluted		24.05				35.26		5.13

The following table sets forth the computation of basic and diluted net income attributable to Baidu, Inc. per share for Class A and Class B ordinary shares for the nine-month periods ended September 30, 2017 and 2018:

	For the nine months ended
	September 30, 2017				September 30, 2018
	Class A		Class B		Class A		Class A		Class B		Class B
	RMB		RMB		RMB		US$		RMB		US$
	(In millions, except for number of shares, per share and per ADS data)
	(unaudited)
Earnings per share  - basic:
Numerator
Allocation of net income available to ordinary shareholders		11,038		2,930		20,130		2,930		5,234		762
Denominator
Weighted average ordinary shares outstanding		27,425,010		7,280,283		27,693,504		27,693,504		7,201,254		7,201,254
Denominator used for earnings per share		27,425,010		7,280,283		27,693,504		27,693,504		7,201,254		7,201,254
Earnings per share - basic		402.48		402.48		726.87		105.83		726.87		105.83
Earnings per share - diluted:
Numerator
Allocation of net income available to ordinary shareholders		11,054		2,914		20,177		2,937		5,187		755
Reallocation of net income available to ordinary shareholders as a result of conversion of Class B to Class A shares		2,914		—		5,187		755		—		—
Allocation of net income available to ordinary shareholders		13,968		2,914		25,364		3,692		5,187		755
Denominator
Weighted average ordinary shares outstanding		27,425,010		7,280,283		27,693,504		27,693,504		7,201,254		7,201,254
Conversion of Class B to Class A ordinary shares		7,280,283		—		7,201,254		7,201,254		—		—
Share-based awards		189,712		—		318,479		318,479		—		—
Denominator used for earnings per share		34,895,005		7,280,283		35,213,237		35,213,237		7,201,254		7,201,254
Earnings per share - diluted		400.29		400.29		720.30		104.88		720.30		104.88
Earnings per ADS:
Denominator used for earnings per ADS - basic		274,250,100				276,935,040		276,935,040
Denominator used for earnings per ADS - diluted		348,950,050				352,132,370		352,132,370
Earnings per ADS - basic		40.25				72.69		10.58
Earnings per ADS - diluted		40.03				72.03		10.49

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Related Party Transactions (Tables)

9 Months Ended

Sep. 30, 2018

Related Party Transactions [Abstract]

Amounts due from/due to related parties

As of December 31, 2017 and September 30, 2018, amounts due from/due to related parties were as follows:

	As of December 31,		As of September 30,
	2017		2018		2018
	RMB		RMB		US$
	(In millions)
Amounts due from related parties, current:
Ctrip(i)		137		158		23
Du Xiaoman(iii)		—		22,642		3,297
Other related parties(ii)		31		521		76
Total		168		23,321		3,396
Amounts due from related parties, non-current:
Du Xiaoman(iii)		—		1,982		288
Other related parties		9		12		2
Total		9		1,994		290
Amounts due to related parties, current:
Du Xiaoman(iv)		—		223		33
Ctrip(vi)		122		140		20
Other related parties(vii)		31		510		74
Total		153		873		127
Amounts due to related parties, non-current:
Du Xiaoman(v)		—		2,341		341
Other related parties(viii)		—		667		97
Total		—		3,008		438

(i) The balances mainly represent amounts arising from services the Company provided to Ctrip in the ordinary course of business.

(ii) The balances represent amounts arising from services the Company provided to its equity method investees (excluding Ctrip and Du Xiaoman) and cost method investees in the ordinary course of business, and a short-term interest-bearing loan provided to a cost method investee.

(iii) The balance represents amounts due from Du Xiaoman for unsettled payments relating to the disposal and short-term interest-bearing loans due from Du Xiaoman.

(iv) The balance represents mainly deferred revenue relating to future services to be provided.

(v) The balance represents mainly an interest-bearing loan provided by Du Xiaoman.

(vi) The balances mainly represent amounts arising from services provided by Ctrip in the ordinary course of business.

(vii) The balances represent amounts arising from services provided by the Company’s equity method investees other than Ctrip and Du Xiaoman and cost method investees in the ordinary course of business, and a short-term interest-bearing loan provided by a cost method investee to the Company.

(viii) The balance represents mainly deferred revenue relating to the future services to be provided by the Company to an equity method investee.

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Segment Reporting (Tables)

9 Months Ended

Sep. 30, 2018

Segment Reporting [Abstract]

Summary of Group's Operating Segment Results

The table below provides a summary of the Group’s operating segment results for the three-month and nine-month periods ended September 30, 2017 and 2018.

	For the three months ended September 30, 2017
	Baidu Core			iQIYI			Intersegment eliminations & adjustments			Consolidated
	RMB			RMB			RMB			RMB
	(In millions)
	(unaudited)
Total revenues		18,342			4,951			196			23,489
Operating costs and expenses:
Cost of revenues		6,829			4,898			74			11,801
Selling, general and administrative		3,023			777			(54	)		3,746
Research and development		2,901			343			(2	)		3,242
Total operating costs and expenses		12,753			6,018			18			18,789
Operating profit (loss)		5,589			(1,067	)		178			4,700
Total other income, net		4,292			16			37			4,345
Income (loss) before income taxes		9,881			(1,051	)		215			9,045
Income taxes		1,098			1			(2	)		1,097
Net income (loss)		8,783			(1,052	)		217			7,948
Less: net income (loss) attributable to noncontrolling interests		(1	)		—			—			(1	)
Net income attributable to Baidu, Inc.		8,784			(1,052	)		217			7,949

	For the nine months ended September 30, 2017
	Baidu Core			iQIYI			Intersegment eliminations & adjustments			Consolidated
	RMB			RMB			RMB			RMB
	(In millions)
	(unaudited)
Total revenues		48,571			12,561			122			61,254
Operating costs and expenses:
Cost of revenues		18,907			12,852			(143	)		31,616
Selling, general and administrative		7,623			1,902			(28	)		9,497
Research and development		8,337			905			(17	)		9,225
Total operating costs and expenses		34,867			15,659			(188	)		50,338
Operating profit (loss)		13,704			(3,098	)		310			10,916
Total other income, net		5,266			(25	)		38			5,279
Income (loss) before income taxes		18,970			(3,123	)		348			16,195
Income taxes		2,062			2			2			2,066
Net income (loss)		16,908			(3,125	)		346			14,129
Less: net income (loss) attributable to noncontrolling interests		(9	)		—			(3	)		(12	)
Net income (loss) attributable to Baidu, Inc.		16,917			(3,125	)		349			14,141

	For the three months ended September 30, 2018
	Baidu Core				iQIYI						Intersegment eliminations						Consolidated
	RMB		US$		RMB			US$			RMB			US$			RMB			US$
	(In millions)
	(unaudited)
Total revenues		21,606		3,145		6,914			1,007			(317	)		(46	)		28,203			4,106
Operating costs and expenses:
Cost of revenues		6,804		990		7,655			1,115			(241	)		(35	)		14,218			2,070
Selling, general and administrative		4,428		645		1,292			188			(79	)		(12	)		5,641			821
Research and development		3,359		489		558			81			(1	)		—			3,916			570
Total operating costs and expenses		14,591		2,124		9,505			1,384			(321	)		(47	)		23,775			3,461
Operating profit (loss)		7,015		1,021		(2,591	)		(377	)		4			1			4,428			645
Total other income (loss), net		9,687		1,409		(539	)		(78	)		(127	)		(18	)		9,021			1,313
Income (loss) before income taxes		16,702		2,430		(3,130	)		(455	)		(123	)		(17	)		13,449			1,958
Income taxes		2,059		300		(6	)		(1	)		—			—			2,053			299
Net income (loss)		14,643		2,130		(3,124	)		(454	)		(123	)		(17	)		11,396			1,659
Less: net income (loss) attributable to noncontrolling interests		334		49		16			2			(1,350	)		(197	)		(1,000	)		(146	)
Net income (loss) attributable to Baidu, Inc.		14,309		2,081		(3,140	)		(456	)		1,227			180			12,396			1,805

	For the nine months ended September 30, 2018
	Baidu Core						iQIYI						Intersegment eliminations						Consolidated
	RMB			US$			RMB			US$			RMB			US$			RMB			US$
				(In millions)
				(unaudited)
Total revenues		57,751			8,409			17,961			2,615			(630	)		(92	)		75,082			10,932
Operating costs and expenses:
Cost of revenues		17,995			2,620			18,610			2,710			(472	)		(69	)		36,133			5,261
Selling, general and administrative		10,522			1,532			2,945			429			(179	)		(26	)		13,288			1,935
Research and development		9,859			1,435			1,387			202			(3	)		—			11,243			1,637
Total operating costs and expenses		38,376			5,587			22,942			3,341			(654	)		(95	)		60,664			8,833
Operating profit (loss)		19,375			2,822			(4,981	)		(726	)		24			3			14,418			2,099
Total other income (loss), net		13,199			1,921			(643	)		(93	)		(701	)		(102	)		11,855			1,726
Income (loss) before income taxes		32,574			4,743			(5,624	)		(819	)		(677	)		(99	)		26,273			3,825
Income taxes		4,260			620			(1	)		—			—			—			4,259			620
Net income (loss)		28,314			4,123			(5,623	)		(819	)		(677	)		(99	)		22,014			3,205
Less: net income (loss) attributable to noncontrolling interests		(1,241	)		(181	)		10			2			(2,247	)		(327	)		(3,478	)		(506	)
Net income (loss) attributable to Baidu, Inc.		29,555			4,304			(5,633	)		(821	)		1,570			228			25,492			3,711

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Financial Statement Balances and Amounts of VIEs and Subsidiaries Included in Consolidated Financial Statements After Elimination of Intercompany Balances and Transactions Among VIEs and Subsidiaries within Group (Detail) ¥ in Millions, $ in Millions		3 Months Ended			9 Months Ended
		Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Sep. 30, 2017 CNY (¥)	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Sep. 30, 2017 CNY (¥)	Sep. 30, 2018 CNY (¥)	Dec. 31, 2017 CNY (¥)
Variable Interest Entity [Line Items]
Cash and cash equivalents		$ 2,297			$ 2,297			¥ 15,775	¥ 11,084
Short-term investments		12,917			12,917			88,716	89,381
Accounts receivable, net		794			794			5,455	4,571
Total current assets		20,382			20,382			139,982	151,169
Fixed assets, net		2,358			2,358			16,197	12,475
Intangible assets, net		1,271			1,271			8,732	5,467
Long-term investments, net		11,734			11,734			80,589	56,283
Total non-current assets		19,707			19,707			135,354	100,559
Total		40,089			40,089			275,336	251,728
Accounts payable and accrued liabilities		4,914			4,914			33,743	27,523
Customer advances and deposits		1,106			1,106			7,599	6,785
Total current liabilities		7,661			7,661			52,613	82,057
Non-current		7,262			7,262			49,879	39,299
Total liabilities		14,923			14,923			102,492	121,356
Total revenues		4,106	¥ 28,203		10,932	¥ 75,082
Total revenues				¥ 23,489			¥ 61,254
Net income (loss)		1,659	11,396	7,948	3,205	22,014	14,129
Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
Cash and cash equivalents		199			199			1,365	4,045
Short-term investments		288			288			1,978	2,052
Accounts receivable, net		569			569			3,907	3,021
Others		638			638			4,381	5,280
Total current assets		1,694			1,694			11,631	14,398
Fixed assets, net		628			628			4,310	2,845
Intangible assets, net		514			514			3,528	2,104
Long-term investments, net		2,650			2,650			18,197	10,614
Others		1,559			1,559			10,710	6,488
Total non-current assets		5,351			5,351			36,745	22,051
Total		7,045			7,045			48,376	36,449
Total current liabilities		3,351			3,351			23,008	18,775
Non-current		747			747			5,128	5,151
Total revenues		1,375	9,444		3,630	24,931
Total revenues				7,954			21,733
Net income (loss)		(117)	(805)	(139)	(712)	(4,892)	891
Net cash provided by (used in) operating activities		458	3,146	3,640	743	5,101	7,595
Net cash provided by (used in) investing activities		(1,252)	(8,597)	102	(2,503)	(17,193)	(3,123)
Net cash provided by (used in) financing activities		252	¥ 1,728	¥ (2,502)	1,341	¥ 9,208	¥ (3,331)
Variable Interest Entity, Primary Beneficiary | Third-party Liabilities
Variable Interest Entity [Line Items]
Accounts payable and accrued liabilities		1,833			1,833			12,586	14,073
Customer advances and deposits		375			375			2,573	2,288
Others		1,143			1,143			7,849	2,414
Total current liabilities		3,351			3,351			23,008	18,775
Non-current		747			747			5,128	5,151
Total liabilities		4,098			4,098			28,136	23,926
Variable Interest Entity, Primary Beneficiary | Inter-company Liabilities
Variable Interest Entity [Line Items]
Inter-company payable to subsidiaries for technology consulting and service fees	[1]	210			210			1,443	2,828
Others	[1]	1,337			1,337			9,184	4,605
Total liabilities	[1]	$ 1,547			$ 1,547			¥ 10,627	¥ 7,433

[1] Inter-company liabilities represent payable balances of each VIE due to subsidiaries within the Group pursuant to the technology consulting and service agreements. Other payables to non-VIE subsidiaries within the Group were included in third-party liabilities.

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Basis of Presentation - Additional Information (Detail) ¥ in Billions, $ in Billions	9 Months Ended
	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Sep. 28, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Net assets of VIEs	$ 1.4	¥ 9.6
Creditors of the VIEs'third-party liabilities with no recourse to the general credit of the primary beneficiaries	No
Exchange rate used for conversion of financial statements from RMB to US dollar			6.8680

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Summary of Significant Accounting Policies - Additional Information (Detail) ¥ in Millions, $ in Millions				3 Months Ended			9 Months Ended
	Jan. 01, 2018 USD ($)	Jan. 01, 2018 CNY (¥)	Dec. 31, 2017 Segment	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Sep. 30, 2017 CNY (¥)	Sep. 30, 2018 USD ($) Segment	Sep. 30, 2018 CNY (¥) Segment	Sep. 30, 2017 CNY (¥)	Sep. 30, 2018 CNY (¥)
Accounting Policies [Abstract]
VAT recognized				$ 244	¥ 1,700	¥ 1,300	$ 652	¥ 4,500	¥ 3,400
Barter transaction, Gross Operating Revenue Recognized				73	503	198	120	824	708
Gross interest income				90	616	1,100	483	3,300	2,300
Gross interest cost				30	208	580	$ 232	¥ 1,600	1,200
Number of reportable segments			2				2	2
Other Current Assets, net
Accounting Policies [Abstract]
Contract assets		¥ 832		233			$ 233			¥ 1,600
Accounting Standards Update 2014-09
Accounting Policies [Abstract]
Cumulative effect on retained earnings	$ 141	967
Micro loans | Minimum
Accounting Policies [Abstract]
Periods of loan granted							1 month	1 month
Micro loans | Maximum
Accounting Policies [Abstract]
Periods of loan granted							36 months	36 months
Ordinary Shares | Accounting Standards Update 2016-01
Accounting Policies [Abstract]
Cumulative effect on retained earnings	$ 270	¥ 1,900
Short-term Investments | Minimum
Accounting Policies [Abstract]
Maturity period used to classify cash and cash equivalent and investments							3 months	3 months
Short-term Investments | Maximum
Accounting Policies [Abstract]
Maturity period used to classify cash and cash equivalent and investments							12 months	12 months
Cash and cash equivalents | Maximum
Accounting Policies [Abstract]
Maturity period used to classify cash and cash equivalent and investments							3 months	3 months
iQIYI Licensed Copyright
Accounting Policies [Abstract]
Barter transaction, Gross Operating Revenue Recognized				73	503	198	$ 120	¥ 824	708
Barter transaction, Cost Recognized				$ 76	¥ 523	¥ 193	$ 119	¥ 818	¥ 596

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Summary of Revenues Disaggregated by Revenue Source (Detail) ¥ in Millions, $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Sep. 30, 2017 CNY (¥)	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Sep. 30, 2017 CNY (¥)
Disaggregation of Revenue [Line Items]
Total revenue			¥ 23,489			¥ 61,254
Total revenue	$ 4,106	¥ 28,203		$ 10,932	¥ 75,082
Online Marketing Services
Disaggregation of Revenue [Line Items]
Total revenue			20,108			52,729
Total revenue	3,273	22,481		8,840	60,715
Other Revenue iQIYI Membership Service
Disaggregation of Revenue [Line Items]
Total revenue			1,697			4,607
Total revenue	415	2,852		1,081	7,421
Other Revenue iQIYI Content Distribution
Disaggregation of Revenue [Line Items]
Total revenue			276			958
Total revenue	122	835		239	1,641
Other Interest Income Earned from Provision of Financial Services
Disaggregation of Revenue [Line Items]
Total revenue			495			1,029
Total revenue	59	408		251	1,724
Other Revenue Other
Disaggregation of Revenue [Line Items]
Total revenue			913			1,931
Total revenue	237	1,627		521	3,581
Other Revenue
Disaggregation of Revenue [Line Items]
Total revenue			¥ 3,381			¥ 8,525
Total revenue	$ 833	¥ 5,722		$ 2,092	¥ 14,367

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Business Combination - Additional Information (Detail) ¥ in Millions, $ in Millions	9 Months Ended
	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Sep. 30, 2017 CNY (¥)	Sep. 30, 2018 CNY (¥)	Dec. 31, 2017 CNY (¥)
Business Acquisition [Line Items]
Business acquisition, total purchase consideration	$ 353	¥ 2,400	¥ 721
Business acquisition, goodwill	2,483			¥ 17,051	¥ 15,806
Business acquisition, intangible assets	139			958
Business acquisition, net assets other than goodwill and intangible assets	73			491
Business acquisition, attribute to noncontrolling interest	130			889
Cash paid for business combination	192	¥ 1,300
Series of Individually Immaterial Business Acquisitions
Business Acquisition [Line Items]
Business acquisition, goodwill	$ 271			¥ 1,900

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Investments - Short-term Investments - Additional information (Detail) ¥ in Millions, $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Sep. 30, 2017 CNY (¥)	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Sep. 30, 2017 CNY (¥)
Schedule of Investments [Line Items]
Investment interest income	$ 183	¥ 1,258	¥ 876	$ 431	¥ 2,961	¥ 2,237
Short-term Investments
Schedule of Investments [Line Items]
Investment interest income	$ 160	¥ 1,100	¥ 823	$ 391	¥ 2,700	¥ 2,100

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Investments - Long-term Investments - Additional information (Detail)	1 Months Ended				3 Months Ended			9 Months Ended
	Aug. 31, 2018 USD ($)	Aug. 31, 2018 CNY (¥)	Jul. 31, 2018 USD ($)	Jul. 31, 2018 CNY (¥)	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Sep. 30, 2017 CNY (¥)	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Sep. 30, 2017 CNY (¥)	Sep. 30, 2018 CNY (¥)	Dec. 31, 2017 CNY (¥)
Schedule of Investments [Line Items]
Carrying amount of cost method investments												¥ 21,800,000,000
Carrying amount of equity investments without readily determinable fair value					$ 4,000,000,000			$ 4,000,000,000			¥ 27,600,000,000
Accumulated impairment of equity investments without readily determinable fair value					175,000,000			175,000,000			1,200,000,000
Equity investments measured at fair value					609,000,000			609,000,000			4,200,000,000
Unrealized gains and losses recognized					143,000,000	¥ 981,000,000		609,000,000	¥ 4,200,000,000
Impairment charges recognized on equity investments without readily determinable fair value					43,000,000	298,000,000		51,000,000	348,000,000
Carrying amount of equity method investments					6,500,000,000			6,500,000,000			¥ 44,700,000,000	¥ 31,400,000,000
Impairment recognized for equity method investments					$ 0	¥ 0	¥ 0	$ 7,000,000	¥ 48,000,000	¥ 0
Du Xiaoman Financial
Schedule of Investments [Line Items]
Deconsolidation, disposal gain	$ 874,000,000	¥ 6,000,000,000
Equity interest percentage	41.00%	41.00%
Global Ad and Tools Business
Schedule of Investments [Line Items]
Disposal gain recognized			$ 130,000,000	¥ 893,000,000

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Schedule of Unrealized Gains and Losses of Equity Securities Without Readily Determinable Fair Values (Detail) ¥ in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)
Equity Securities, FV-NI and without Readily Determinable Fair Value [Abstract]
Gross unrealized gains (upward adjustments)	$ 154	¥ 1,059	$ 941	¥ 6,463
Gross unrealized losses (downward adjustments excluding impairment)	$ (11)	¥ (78)	$ (332)	¥ (2,280)

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Schedule of Unrealized Gains and Losses of Equity Securities Without Readily Determinable Fair Values Recognized (Detail) ¥ in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)
Equity Securities, FV-NI and without Readily Determinable Fair Value [Abstract]
Net realized gains and losses on equity securities sold	$ 0	¥ 0	$ 18	¥ 124
Net unrealized gains and losses on equity securities held	143	981	609	4,183
Total net gains recognized in other income	$ 143	¥ 981	$ 627	¥ 4,307

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Schedule of Investments at Amortized Cost and Fair Value (Detail) ¥ in Millions, $ in Millions	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Dec. 31, 2017 CNY (¥)
Amortized cost, Gain (loss) and Fair value on Investments [Line Items]
Equity investments at fair value with readily determinable fair value, fair value	$ 609	¥ 4,200
Trading Securities
Amortized cost, Gain (loss) and Fair value on Investments [Line Items]
Other invested securities, cost or amortized cost			¥ 18,289
Other invested securities, gross unrealized gains			169
Other invested securities, gross unrealized losses			(108)
Other invested securities, fair value			18,350
Other Long-term Investments
Amortized cost, Gain (loss) and Fair value on Investments [Line Items]
Available-for-sale debt investments, cost or amortized cost		2,000
Available-for-sale debt investments, gross unrealized gains		23
Available-for-sale debt investments, fair value	294	2,023
Available-for-sale equity investments, cost or amortized cost			2,077
Available-for-sale equity investments, gross unrealized gains			742
Available-for-sale equity investments, gross unrealized losses			(46)
Available-for-sale equity investments, fair value			2,773
Other Long-term Investments | Equity Investments
Amortized cost, Gain (loss) and Fair value on Investments [Line Items]
Equity investments at fair value with readily determinable fair value, cost or amortized cost		4,808
Equity investments at fair value with readily determinable fair value, gross unrealized gains		1,022
Equity investments at fair value with readily determinable fair value, gross unrealized loss		(827)
Equity investments at fair value with readily determinable fair value, fair value	728	5,003
Investments accounted for at fair value, cost or amortized cost		977	307
Investments accounted for at fair value, gross unrealized gains		302	14
Investments accounted for at fair value, fair value	186	1,279	321
Short-term Investments
Amortized cost, Gain (loss) and Fair value on Investments [Line Items]
Held-to-maturity debt investments, cost or amortized cost		31,939	48,666
Held-to-maturity debt investments, gross unrecognized holding gains		166	47
Held-to-maturity debt investments, gross unrecognized holding losses			(18)
Held-to-maturity debt investments, fair value	4,675	32,105	48,695
Available-for-sale debt investments, cost or amortized cost		55,520	40,139
Available-for-sale debt investments, gross unrealized gains		1,313	581
Available-for-sale debt investments, gross unrealized losses		(56)	(5)
Available-for-sale debt investments, fair value	$ 8,267	¥ 56,777	¥ 40,715

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Summary of Changes in Equity and Redeemable Noncontrolling Interests (Detail) ¥ in Millions, $ in Millions		3 Months Ended			9 Months Ended
		Sep. 30, 2018 USD ($) shares	Sep. 30, 2018 CNY (¥) shares	Sep. 30, 2017 CNY (¥)	Sep. 30, 2018 USD ($) shares	Sep. 30, 2018 CNY (¥) shares	Sep. 30, 2017 CNY (¥)
Class of Stock [Line Items]
Balances						¥ 119,350
Cumulative effect of accounting change			¥ 967			967
Net income (loss)						22,014
Other comprehensive income (loss)						2,330
Business combination						1,013
Issuance of subsidiary shares						14,168
Exercise of share-based awards						686
Share-based compensation						3,048
Accretion of redeemable non-controlling interests		$ 0	0	¥ 466	$ (19)	(128)	¥ (173)
Disposal of a subsidiary's shares						1,558
Repurchase and retirement of ordinary shares					(487)	(3,312)
Conversion of iQIYI preferred shares recognized as redeemable noncontrolling interests to ordinary shares						11,150
Balances		25,166	172,844		25,166	172,844
Balances						11,022
Accretion of redeemable non-controlling interests						128
Conversion of iQIYI preferred shares recognized as redeemable noncontrolling interests to ordinary shares						(11,150)
Balances		$ 0	0		$ 0	¥ 0
Ordinary Shares
Class of Stock [Line Items]
Balances (in shares) | shares					34,816,232	34,816,232
Balances						¥ 0
Cumulative effect of accounting change			¥ 0			0
Net income (loss)						0
Other comprehensive income (loss)						0
Business combination						0
Issuance of subsidiary shares						0
Exercise of share-based awards						¥ 0
Exercise of share-based awards, shares | shares					246,989	246,989
Share-based compensation						¥ 0
Accretion of redeemable non-controlling interests						0
Disposal of a subsidiary's shares						0
Repurchase and retirement of ordinary shares						¥ 0
Repurchase and retirement of ordinary shares (in shares) | shares					(207,165)	(207,165)
Conversion of iQIYI preferred shares recognized as redeemable noncontrolling interests to ordinary shares						¥ 0
Balances (in shares) | shares		34,856,056	34,856,056		34,856,056	34,856,056
Balances		$ 0	¥ 0		$ 0	¥ 0
Additional Paid-in Capital
Class of Stock [Line Items]
Balances						12,088
Cumulative effect of accounting change			0			0
Net income (loss)						0
Other comprehensive income (loss)						0
Business combination						75
Issuance of subsidiary shares						14,990
Exercise of share-based awards						685
Share-based compensation						2,929
Accretion of redeemable non-controlling interests						0
Disposal of a subsidiary's shares						1,323
Repurchase and retirement of ordinary shares						0
Conversion of iQIYI preferred shares recognized as redeemable noncontrolling interests to ordinary shares						0
Balances		4,672	32,090		4,672	32,090
Retained Earnings
Class of Stock [Line Items]
Balances						102,328
Cumulative effect of accounting change			2,821			2,821
Net income (loss)						25,492
Other comprehensive income (loss)						0
Business combination						0
Issuance of subsidiary shares						0
Exercise of share-based awards						0
Share-based compensation						0
Accretion of redeemable non-controlling interests						(128)
Disposal of a subsidiary's shares						0
Repurchase and retirement of ordinary shares						(3,312)
Conversion of iQIYI preferred shares recognized as redeemable noncontrolling interests to ordinary shares						0
Balances		18,521	127,201		18,521	127,201
Accumulated Other Comprehensive Income
Class of Stock [Line Items]
Balances						930	(1,783)
Cumulative effect of accounting change	[1]		(1,854)			(1,854)
Net income (loss)						0
Other comprehensive income (loss)						1,323
Business combination						0
Issuance of subsidiary shares						0
Exercise of share-based awards						0
Share-based compensation						0
Accretion of redeemable non-controlling interests						0
Disposal of a subsidiary's shares						0
Repurchase and retirement of ordinary shares						0
Conversion of iQIYI preferred shares recognized as redeemable noncontrolling interests to ordinary shares						0
Balances		58	399	¥ 70	58	399	¥ 70
Non-controlling Interests
Class of Stock [Line Items]
Balances						4,004
Cumulative effect of accounting change			0			0
Net income (loss)						(3,478)
Other comprehensive income (loss)						1,007
Business combination						938
Issuance of subsidiary shares						(822)
Exercise of share-based awards						1
Share-based compensation						119
Accretion of redeemable non-controlling interests						0
Disposal of a subsidiary's shares						235
Repurchase and retirement of ordinary shares						0
Conversion of iQIYI preferred shares recognized as redeemable noncontrolling interests to ordinary shares						11,150
Balances		$ 1,915	¥ 13,154		$ 1,915	¥ 13,154

[1] Adjustment of net unrealized gains related to available-for-sale equity investments from accumulated other comprehensive income to opening retained earnings as a result of the adoption of ASC 321 on January 1, 2018.

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Changes in Equity and Redeemable Noncontrolling Interests - Additional Information (Detail) ¥ in Millions		9 Months Ended
	Sep. 27, 2018 USD ($)	Sep. 30, 2018 USD ($) shares	Sep. 30, 2018 CNY (¥) shares
Stockholders' Equity Note [Abstract]
Stock repurchase program, proposed aggregate value | $	$ 1,000,000,000
Stock repurchase program, period	12 months
Number of Class A ordinary shares repurchased | shares		207,165	207,165
Aggregate purchase price		$ 487,000,000	¥ 3,312

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Fair Value Disclosure and Measurement on Recurring Basis (Detail) ¥ in Millions, $ in Millions	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Dec. 31, 2017 CNY (¥)
Fair value disclosure
Long-term notes payable	$ 5,872	¥ 40,328	¥ 35,943
Fair value measurement
Other invested securities	0	0	18,350
Equity investments at fair value with readily determinable fair value	609	4,200
Financial liabilities	438	3,008	0
Total assets measured at fair value	8,192	56,269	62,327
Short-term Investments
Fair value disclosure
Held-to-maturity debt investments	4,675	32,105	48,695
Fair value measurement
Available-for-sale debt investments	8,267	56,777	40,715
Time Deposits
Fair value disclosure
Cash equivalents	218	1,498	130
Money Market Funds
Fair value disclosure
Cash equivalents	389	2,672	2,384
Fair Value, Inputs, Level 1
Fair value measurement
Total assets measured at fair value		5,003	2,773
Fair Value, Inputs, Level 1 | Money Market Funds
Fair value disclosure
Cash equivalents		2,672	2,384
Fair Value, Inputs, Level 2
Fair value disclosure
Long-term notes payable		40,328	35,943
Fair value measurement
Total assets measured at fair value		50,091	59,233
Fair Value, Inputs, Level 2 | Short-term Investments
Fair value disclosure
Held-to-maturity debt investments		32,105	48,695
Fair Value, Inputs, Level 2 | Time Deposits
Fair value disclosure
Cash equivalents		1,498	130
Fair Value, Inputs, Level 3
Fair value measurement
Total assets measured at fair value		1,175	321
Fair Value, Measurement, Recurring
Fair value measurement
Other invested securities			18,350
Fair Value, Measurement, Recurring | Other non-current assets
Fair value measurement
Derivative instruments	43	296	168
Fair Value, Measurement, Recurring | Accounts Payable and Accrued Liabilities
Fair value measurement
Derivative instruments	18	123
Fair Value, Measurement, Recurring | Amounts Due to Related Parties, Noncurrent
Fair value measurement
Financial liabilities	51	347
Fair Value, Measurement, Recurring | Short-term Investments
Fair value measurement
Available-for-sale debt investments	7,304	50,161	40,715
Fair Value, Measurement, Recurring | Other Long-term Investments
Fair value measurement
Equity investments at fair value with readily determinable fair value	728	5,003
Available-for-sale equity investments			2,773
Investment accounted for at fair value	$ 186	1,279	321
Fair Value, Measurement, Recurring | Fair Value, Inputs, Level 1 | Other Long-term Investments
Fair value measurement
Equity investments at fair value with readily determinable fair value		5,003
Available-for-sale equity investments			2,773
Fair Value, Measurement, Recurring | Fair Value, Inputs, Level 2
Fair value measurement
Other invested securities			18,350
Fair Value, Measurement, Recurring | Fair Value, Inputs, Level 2 | Other non-current assets
Fair value measurement
Derivative instruments		277	168
Fair Value, Measurement, Recurring | Fair Value, Inputs, Level 2 | Amounts Due to Related Parties, Noncurrent
Fair value measurement
Financial liabilities		347
Fair Value, Measurement, Recurring | Fair Value, Inputs, Level 2 | Short-term Investments
Fair value measurement
Available-for-sale debt investments		50,161	40,715
Fair Value, Measurement, Recurring | Fair Value, Inputs, Level 3 | Other non-current assets
Fair value measurement
Derivative instruments		19
Fair Value, Measurement, Recurring | Fair Value, Inputs, Level 3 | Accounts Payable and Accrued Liabilities
Fair value measurement
Derivative instruments		123
Fair Value, Measurement, Recurring | Fair Value, Inputs, Level 3 | Other Long-term Investments
Fair value measurement
Investment accounted for at fair value		¥ 1,279	¥ 321

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Fair Value Measurements - Additional Information (Detail) ¥ in Millions, $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Sep. 30, 2017 CNY (¥)	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Sep. 30, 2017 CNY (¥)
Disclosure Reconciliation Of Changes In Fair Value [Abstract]
Long-term investments impartment charges	$ 45	¥ 298	¥ 197	$ 58	¥ 396	¥ 197

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Total Share-Based Compensation Cost Recognized (Detail) ¥ in Millions, $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Sep. 30, 2017 CNY (¥)	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Sep. 30, 2017 CNY (¥)
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation expense	$ 180	¥ 1,239	¥ 841	$ 456	¥ 3,134	¥ 2,268
Cost of revenues
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation expense	9	58	53	22	153	137
Selling, general and administrative
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation expense	79	545	252	166	1,138	675
Research and development
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation expense	$ 92	¥ 636	¥ 536	$ 268	¥ 1,843	¥ 1,456

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Fixed Assets (Detail) ¥ in Millions, $ in Millions	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Dec. 31, 2017 CNY (¥)
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 4,632	¥ 31,811	¥ 26,104
Accumulated depreciation	(2,274)	(15,614)	(13,629)
Fixed assets, net	2,358	16,197	12,475
Computer equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	3,427	23,539	18,354
Office building
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	606	4,163	4,003
Office building related facility, machinery and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	315	2,166	1,956
Vehicles
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	24	162	80
Office equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	109	747	690
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	50	341	341
Construction in Progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 101	¥ 693	¥ 680

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Loans Payable - Additional Information (Detail)	1 Months Ended												3 Months Ended			9 Months Ended
	Aug. 31, 2018 USD ($)	Jul. 31, 2018 USD ($)	May 31, 2018 USD ($)	Mar. 31, 2018 USD ($)	Feb. 28, 2018 USD ($)	Jan. 31, 2018 USD ($)	Sep. 30, 2017 CNY (¥)	Aug. 31, 2017 CNY (¥)	Jun. 30, 2017 CNY (¥)	Apr. 30, 2017 CNY (¥)	Nov. 30, 2016 USD ($) Tranche	Jul. 30, 2016	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Sep. 30, 2017 CNY (¥)	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Sep. 30, 2017 CNY (¥)	Sep. 30, 2018 CNY (¥)	Aug. 31, 2018 CNY (¥)	Jul. 31, 2018 CNY (¥)	Jun. 30, 2018 USD ($)	Jun. 30, 2018 CNY (¥)	May 31, 2018 CNY (¥)	Mar. 31, 2018 CNY (¥)	Feb. 28, 2018 CNY (¥)	Jan. 31, 2018 CNY (¥)	Nov. 30, 2017 CNY (¥)	Nov. 17, 2017 CNY (¥)	Jan. 31, 2017 CNY (¥)	Dec. 31, 2016 CNY (¥)	Nov. 30, 2016 CNY (¥) Tranche	Jun. 30, 2016 USD ($) Tranche
Debt Instrument [Line Items]
Repayments of debt													$ 92,000,000	¥ 635,000,000	¥ 456,000,000	$ 95,000,000	¥ 650,000,000	¥ 530,000,000
China Minsheng Bank (Beijing Branch) | iQIYI
Debt Instrument [Line Items]
Specific amount up to which borrowings can be made under the commitment of a bank loan									¥ 300,000,000
Amount borrowed under the commitment of a bank loan																												¥ 62,000,000	¥ 132,000,000
Annual interest rate																												5.00%	4.78%
Bank loan maturity period									1 year
HSBC Bank Loan | iQIYI
Debt Instrument [Line Items]
Specific amount up to which borrowings can be made under the commitment of a bank loan			$ 44,000,000																					¥ 300,000,000
Amount borrowed under the commitment of a bank loan	$ 18,000,000		$ 15,000,000																	¥ 125,000,000		$ 15,000,000	¥ 100,000,000	¥ 102,000,000
Annual interest rate	4.79%		4.79%																	4.79%		4.79%	4.79%	4.79%
Secured loan,interest rate description			LPR plus surcharges
Repayments of debt																19,000,000	¥ 130,000,000
Industrial and Commercial Bank of China Shenzhen Branch. | iQIYI
Debt Instrument [Line Items]
Specific amount up to which borrowings can be made under the commitment of a bank loan		$ 7,000,000			$ 15,000,000								15,000,000			15,000,000			¥ 100,000,000		¥ 50,000,000					¥ 100,000,000
Amount borrowed under the commitment of a bank loan		$ 7,000,000	$ 3,000,000	$ 4,000,000									$ 15,000,000			$ 15,000,000			¥ 100,000,000		¥ 50,000,000			¥ 20,000,000	¥ 30,000,000
Annual interest rate		5.00%	4.79%	4.79%									4.79%			4.79%			4.79%		5.00%			4.79%	4.79%
Bank loan maturity period		1 year			1 year											1 year	1 year
Secured loan,interest rate description		LPR plus surcharges			LPR plus surcharges											LPR plus surcharges	LPR plus surcharges
Bank Of China Shanghai Branch | iQIYI
Debt Instrument [Line Items]
Specific amount up to which borrowings can be made under the commitment of a bank loan	$ 29,000,000									¥ 299,000,000										¥ 200,000,000
Amount borrowed under the commitment of a bank loan	$ 29,000,000									¥ 299,000,000										¥ 200,000,000
Annual interest rate	4.79%									4.47%										4.79%
Bank loan maturity period	1 year									3 years
Secured loan,interest rate description	LPR plus surcharges									94% of benchmark three-year lending rate published by the People's Bank of China
Repayment of debt																		15,000,000
A Group Of 21 Arrangers | Unsecured Loan 1
Debt Instrument [Line Items]
Specific amount up to which borrowings can be made under the commitment of a bank loan | $																																	$ 1,000,000,000
Bank loan maturity period												5 years
Number of tranches issued and sold | Tranche											2																					2	2
The percentage points added to LIBOR to compute the floating interest rate per annum																1.10%	1.10%
A Group Of 21 Arrangers | Unsecured Loan 2
Debt Instrument [Line Items]
Specific amount up to which borrowings can be made under the commitment of a bank loan | $																																	$ 1,000,000,000
Bank loan maturity period												5 years
A Group Of 21 Arrangers | Debt Instrument Tranche One | Unsecured Loan 1
Debt Instrument [Line Items]
Amount borrowed under the commitment of a bank loan | $											$ 250,000,000																						$ 250,000,000
Annual interest rate											2.78%																					2.78%	2.11%
A Group Of 21 Arrangers | Debt Instrument Tranche Two | Unsecured Loan 1
Debt Instrument [Line Items]
Amount borrowed under the commitment of a bank loan | $											$ 250,000,000																						$ 250,000,000
Annual interest rate											2.78%																					2.78%	2.10%
China Merchant Bank (Shanghai Branch)
Debt Instrument [Line Items]
Specific amount up to which borrowings can be made under the commitment of a bank loan																																¥ 100,000,000
Amount borrowed under the commitment of a bank loan																														¥ 15,000,000	¥ 85,000,000
Annual interest rate																														4.18%	4.18%
Bank loan maturity period											1 year
China Merchant Bank (Shanghai Branch) | iQIYI
Debt Instrument [Line Items]
Specific amount up to which borrowings can be made under the commitment of a bank loan	$ 44,000,000																			¥ 300,000,000
Amount borrowed under the commitment of a bank loan	$ 9,000,000												$ 5,000,000			$ 5,000,000			¥ 38,000,000	¥ 61,000,000
Annual interest rate	4.79%												4.79%			4.79%			4.79%	4.79%
Bank loan maturity period	1 year
Secured loan,interest rate description	LPR plus surcharges
International Finance Corporation
Debt Instrument [Line Items]
Specific amount up to which borrowings can be made under the commitment of a bank loan																																¥ 500,000,000
Amount borrowed under the commitment of a bank loan																															¥ 500,000,000
Annual interest rate													6.04%			6.04%			6.04%												4.92%
Bank loan maturity period											1 year
International Finance Corporation | Unsecured Loan 1
Debt Instrument [Line Items]
Specific amount up to which borrowings can be made under the commitment of a bank loan				$ 95,000,000																					¥ 650,000,000
Amount borrowed under the commitment of a bank loan			$ 95,000,000																					¥ 650,000,000
Annual interest rate			5.91%																					5.91%
Bank loan maturity period				3 years
International Finance Corporation | Unsecured Loan 2
Debt Instrument [Line Items]
Specific amount up to which borrowings can be made under the commitment of a bank loan				$ 95,000,000																					¥ 650,000,000
Amount borrowed under the commitment of a bank loan			$ 5,000,000																					¥ 32,000,000
Annual interest rate			5.81%																					5.81%
Bank loan maturity period				2 years
International Finance Corporation | Unsecured Loan 3
Debt Instrument [Line Items]
Amount borrowed under the commitment of a bank loan			$ 5,000,000																					¥ 32,000,000
Annual interest rate			6.12%																					6.12%
Bank loan maturity period				3 years
China Merchants Bank (Beijing Branch)
Debt Instrument [Line Items]
Specific amount up to which borrowings can be made under the commitment of a bank loan								¥ 300,000,000
Amount borrowed under the commitment of a bank loan							¥ 130,000,000								¥ 130,000,000			¥ 130,000,000
Annual interest rate							5.05%								5.05%			5.05%
Bank loan maturity period								1 year
Secured loan,interest rate description								116% of the benchmark one-year lending rate published by the People's Bank of China
China Merchants Bank (Beijing Branch) | iQIYI
Debt Instrument [Line Items]
Specific amount up to which borrowings can be made under the commitment of a bank loan	$ 73,000,000							¥ 200,000,000												¥ 500,000,000
Amount borrowed under the commitment of a bank loan					$ 10,000,000		¥ 106,000,000						$ 29,000,000		¥ 106,000,000	$ 29,000,000		¥ 106,000,000	¥ 202,000,000			$ 2,000,000	¥ 13,000,000			¥ 67,000,000
Annual interest rate					3.92%		4.11%						3.92%		4.11%	3.92%		4.11%	3.92%			3.92%	3.92%			3.92%
Bank loan maturity period	1 year							1 year
Secured loan,interest rate description	LPR plus surcharges							LPR plus surcharges
Repayments of debt							¥ 106,000,000
China Citic Bank (Chongqing Branch)
Debt Instrument [Line Items]
Specific amount up to which borrowings can be made under the commitment of a bank loan							300,000,000								¥ 300,000,000			¥ 300,000,000
Amount borrowed under the commitment of a bank loan							¥ 300,000,000								¥ 300,000,000			¥ 300,000,000
Annual interest rate							5.00%								5.00%			5.00%
Bank loan maturity period							1 year
Secured loan,interest rate description							115% of the benchmark one-year lending rate published by the People's Bank of China
Bank of Dalian
Debt Instrument [Line Items]
Specific amount up to which borrowings can be made under the commitment of a bank loan						$ 58,000,000																					¥ 400,000,000
Amount borrowed under the commitment of a bank loan						$ 58,000,000																					¥ 400,000,000
Annual interest rate						6.13%																					6.13%
Bank loan maturity period						1 year

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Notes Payable - Additional Information (Detail) ¥ in Millions, $ in Millions	9 Months Ended
	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Mar. 29, 2018 USD ($) Tranche	Jul. 06, 2017 USD ($) Tranche	Jun. 30, 2015 USD ($) Tranche	Jun. 09, 2014 USD ($)	Aug. 06, 2013 USD ($)	Nov. 28, 2012 USD ($) Tranche
Unsecured Senior Notes
Debt Instrument [Line Items]
Number of tranches issued and sold | Tranche			2	2	2			2
Discount on debt issued	$ 20	¥ 140
Debt issuance cost	$ 31	¥ 214
Unsecured Senior Notes Due Two Thousand Seventeen
Debt Instrument [Line Items]
Debt face amount								$ 750
Debt, maturity date	Nov. 28, 2017
Interest rate	2.25%	2.25%
Effective interest rate	2.36%	2.36%
Unsecured Senior Notes Due Two Thousand Twenty Two
Debt Instrument [Line Items]
Debt face amount								$ 750
Debt, maturity date	Nov. 28, 2022
Interest rate	3.50%	3.50%
Effective interest rate	3.59%	3.59%
Unsecured Senior Notes Due Twenty Eighteen
Debt Instrument [Line Items]
Debt face amount							$ 1,000
Debt, maturity date	Aug. 06, 2018
Interest rate	3.25%	3.25%
Effective interest rate	3.39%	3.39%
Unsecured Senior Notes Due Twenty Nineteen
Debt Instrument [Line Items]
Debt face amount						$ 1,000
Debt, maturity date	Jun. 09, 2019
Interest rate	2.75%	2.75%
Effective interest rate	3.00%	3.00%
Unsecured Senior Notes Due Two Thousand Twenty
Debt Instrument [Line Items]
Debt face amount					$ 750
Debt, maturity date	Jun. 30, 2020
Interest rate	3.00%	3.00%
Effective interest rate	3.13%	3.13%
Unsecured Senior Notes Due Two Thousand Twenty Five
Debt Instrument [Line Items]
Debt face amount					$ 500
Debt, maturity date	Jun. 30, 2025
Interest rate	4.13%	4.13%
Effective interest rate	4.22%	4.22%
Unsecured Senior Notes Due 2022 Five-Year Notes
Debt Instrument [Line Items]
Debt face amount				$ 900
Debt, maturity date	Jul. 06, 2022
Interest rate	2.88%	2.88%
Effective interest rate	3.08%	3.08%
Unsecured Senior Notes Due 2027
Debt Instrument [Line Items]
Debt face amount				$ 600
Debt, maturity date	Jul. 06, 2027
Interest rate	3.63%	3.63%
Effective interest rate	3.73%	3.73%
Unsecured Senior Notes Due Two Thousand Twenty Three
Debt Instrument [Line Items]
Debt face amount			$ 1,000
Debt, maturity date	Sep. 29, 2023
Interest rate	3.88%	3.88%
Effective interest rate	3.99%	3.99%
Unsecured Senior Notes Due Two Thousand Twenty Eight
Debt Instrument [Line Items]
Debt face amount			$ 500
Debt, maturity date	Mar. 29, 2028
Interest rate	4.38%	4.38%
Effective interest rate	4.50%	4.50%

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Principal Amount and Unamortized Discount and Debt Issuance Costs (Detail) ¥ in Millions, $ in Millions	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Dec. 31, 2017 CNY (¥)
Debt Disclosure [Abstract]
Principal amount	$ 5,999	¥ 41,207	¥ 35,782
Unamortized discount and debt issuance cost	(30)	(209)	(171)
Long-term Debt, Total	$ 5,969	¥ 40,998	¥ 35,611

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Income Taxes - Additional Information (Detail) ¥ in Billions, $ in Billions	3 Months Ended		9 Months Ended
	Sep. 30, 2018 USD ($)	Sep. 30, 2017	Sep. 30, 2018 USD ($)	Sep. 30, 2017	Sep. 30, 2018 CNY (¥)
Income Taxes [Line Items]
Unified statutory income tax rate under current EIT law			25.00%
Effective tax rate	15.00%	12.00%	16.00%	13.00%
Undistributed earnings no withholding tax has accrued	$ 19.9		$ 19.9		¥ 136.9
PRC statutory withholding tax rate to which dividends paid by a FIE to any of its foreign non-resident enterprise investors			10.00%
PRC special withholding tax rate to which dividends paid by a FIE to its foreign non-resident enterprise investors in Hong Kong			5.00%
Baidu HK
Income Taxes [Line Items]
Income tax rate			16.50%

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Restricted Net Assets - Additional Information (Detail) ¥ in Billions, $ in Billions	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Dec. 31, 2017 CNY (¥)
Stockholders' Equity Note [Abstract]
Amounts of restricted paid up capital and statutory reserve funds of PRC subsidiaries and net assets of VIEs	$ 3.8	¥ 26.1	¥ 18.6

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Changes in Accumulated Other Comprehensive (Loss) Income by Component, Net of Tax (Detail) ¥ in Millions, $ in Millions		3 Months Ended			9 Months Ended
		Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Sep. 30, 2017 CNY (¥)	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Sep. 30, 2017 CNY (¥)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balances						¥ 119,350
Cumulative effect of accounting change			¥ 967			967
Net current-period other comprehensive income		$ 70	483	¥ 872	$ 69	476	¥ 1,661
Balances		25,166	172,844		25,166	172,844
Foreign currency translation adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balances						(888)	(2,022)
Cumulative effect of accounting change	[1]		0			0
Other comprehensive income before reclassification						79	974
Amounts reclassified from accumulated other comprehensive income						80	48
Net current-period other comprehensive income						159	1,022
Other comprehensive income (loss) attributable to noncontrolling interests and redeemable noncontrolling interests						(992)	192
Balances		(251)	(1,721)	(808)	(251)	(1,721)	(808)
Unrealized gains on available- for-sale investments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balances						1,818	239
Cumulative effect of accounting change	[1]		(1,854)			(1,854)
Other comprehensive income before reclassification						3,529	1,406
Amounts reclassified from accumulated other comprehensive income						(1,358)	(767)
Net current-period other comprehensive income						317	639
Other comprehensive income (loss) attributable to noncontrolling interests and redeemable noncontrolling interests						(15)	0
Balances		309	2,120	878	309	2,120	878
Accumulated Other Comprehensive Income
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balances						930	(1,783)
Cumulative effect of accounting change	[1]		(1,854)			(1,854)
Other comprehensive income before reclassification						3,608	2,380
Amounts reclassified from accumulated other comprehensive income						(1,278)	(719)
Net current-period other comprehensive income						476	1,661
Other comprehensive income (loss) attributable to noncontrolling interests and redeemable noncontrolling interests						(1,007)	192
Balances		$ 58	¥ 399	¥ 70	$ 58	¥ 399	¥ 70

[1] Adjustment of net unrealized gains related to available-for-sale equity investments from accumulated other comprehensive income to opening retained earnings as a result of the adoption of ASC 321 on January 1, 2018.

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Tax Effect Allocated to Each Component of Other Comprehensive Income (Detail) ¥ in Millions, $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Sep. 30, 2017 CNY (¥)	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Sep. 30, 2017 CNY (¥)
Other Comprehensive Income (Loss), Tax [Abstract]
Other comprehensive loss before reclassification	$ (15)	¥ (106)	¥ (86)	$ (44)	¥ (302)	¥ (175)
Amounts reclassified from accumulated other comprehensive income	14	101	50	30	206	126
Net current-period other comprehensive loss	$ (1)	¥ (5)	¥ (36)	$ (14)	¥ (96)	¥ (49)

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Reconciliation of Net Income to Numerator for Computation of Basic and Diluted Earnings Per Share (Detail) ¥ in Millions, $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Sep. 30, 2017 CNY (¥)	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Sep. 30, 2017 CNY (¥)
Net Income (Loss) Available to Common Stockholders, Basic [Abstract]
Net income attributable to Baidu, Inc.	$ 1,805	¥ 12,396	¥ 7,949	$ 3,711	¥ 25,492	¥ 14,141
Accretion of the redeemable noncontrolling interests	0	0	466	(19)	(128)	(173)
Net income available to ordinary shareholders	$ 1,805	¥ 12,396	¥ 8,415	$ 3,692	¥ 25,364	¥ 13,968

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Computation of Basic and Diluted Net Income Per Class A and Class B Ordinary Share (Detail) ¥ / shares in Units, $ / shares in Units, ¥ in Millions, $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2018 USD ($) $ / shares shares	Sep. 30, 2018 CNY (¥) ¥ / shares shares	Sep. 30, 2017 CNY (¥) ¥ / shares shares	Sep. 30, 2018 USD ($) $ / shares shares	Sep. 30, 2018 CNY (¥) ¥ / shares shares	Sep. 30, 2017 CNY (¥) ¥ / shares shares
Numerator
Allocation of net income available to ordinary shareholders	$ 1,805	¥ 12,396	¥ 8,415	$ 3,692	¥ 25,364	¥ 13,968
Class A Ordinary Shares
Numerator
Allocation of net income available to ordinary shareholders	$ 1,432	¥ 9,838	¥ 6,666	$ 2,930	¥ 20,130	¥ 11,038
Denominator
Denominator used for earnings per share	27,690,479	27,690,479	27,489,083	27,693,504	27,693,504	27,425,010
Earnings per share - basic | (per share)	$ 51.73	¥ 355.27	¥ 242.48	$ 105.83	¥ 726.87	¥ 402.48
Numerator
Allocation of net income available to ordinary shareholders	$ 1,435	¥ 9,857	¥ 6,680	$ 2,937	¥ 20,177	¥ 11,054
Reallocation of net income available to ordinary shareholders as a result of conversion of Class B to Class A shares	370	2,539	1,735	755	5,187	2,914
Allocation of net income available to ordinary shareholders	$ 1,805	¥ 12,396	¥ 8,415	$ 3,692	¥ 25,364	¥ 13,968
Denominator
Weighted average ordinary shares outstanding	27,690,479	27,690,479	27,489,083	27,693,504	27,693,504	27,425,010
Conversion of Class B to Class A ordinary shares	7,201,254	7,201,254	7,214,841	7,201,254	7,201,254	7,280,283
Share-based awards	267,014	267,014	287,253	318,479	318,479	189,712
Denominator used for earnings per share	35,158,747	35,158,747	34,991,177	35,213,237	35,213,237	34,895,005
Earnings per share - diluted | (per share)	$ 51.34	¥ 352.57	¥ 240.49	$ 104.88	¥ 720.30	¥ 400.29
Class A Ordinary Shares | American Depositary Shares
Denominator
Denominator used for earnings per share	276,904,790	276,904,790	274,890,830	276,935,040	276,935,040	274,250,100
Earnings per share - basic | (per share)	$ 5.17	¥ 35.53	¥ 24.25	$ 10.58	¥ 72.69	¥ 40.25
Denominator
Weighted average ordinary shares outstanding	276,904,790	276,904,790	274,890,830	276,935,040	276,935,040	274,250,100
Denominator used for earnings per share	351,587,470	351,587,470	349,911,770	352,132,370	352,132,370	348,950,050
Earnings per share - diluted | (per share)	$ 5.13	¥ 35.26	¥ 24.05	$ 10.49	¥ 72.03	¥ 40.03
Class B Ordinary Shares
Numerator
Allocation of net income available to ordinary shareholders	$ 373	¥ 2,558	¥ 1,749	$ 762	¥ 5,234	¥ 2,930
Denominator
Denominator used for earnings per share	7,201,254	7,201,254	7,214,841	7,201,254	7,201,254	7,280,283
Earnings per share - basic | (per share)	$ 51.73	¥ 355.27	¥ 242.48	$ 105.83	¥ 726.87	¥ 402.48
Numerator
Allocation of net income available to ordinary shareholders	$ 370	¥ 2,539	¥ 1,735	$ 755	¥ 5,187	¥ 2,914
Allocation of net income available to ordinary shareholders	$ 370	¥ 2,539	¥ 1,735	$ 755	¥ 5,187	¥ 2,914
Denominator
Weighted average ordinary shares outstanding	7,201,254	7,201,254	7,214,841	7,201,254	7,201,254	7,280,283
Conversion of Class B to Class A ordinary shares	0	0	0	0	0	0
Share-based awards	0	0	0	0	0	0
Denominator used for earnings per share	7,201,254	7,201,254	7,214,841	7,201,254	7,201,254	7,280,283
Earnings per share - diluted | (per share)	$ 51.34	¥ 352.57	¥ 240.49	$ 104.88	¥ 720.30	¥ 400.29

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Related Party Transactions - Additional Information (Detail) ¥ in Millions, $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Sep. 30, 2017 CNY (¥)	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Sep. 30, 2017 CNY (¥)
Ctrip.com International, Ltd
Related Party Transaction [Line Items]
Related party transactions	$ 43	¥ 295	¥ 186	$ 121	¥ 832	¥ 560

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Related Party Transactions (Detail) ¥ in Millions, $ in Millions		Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Dec. 31, 2017 CNY (¥)
Amounts due from related parties, current:
Amounts due from related parties, current		$ 3,396	¥ 23,321	¥ 168
Amounts due from related parties, non-current:
Amounts due from related parties, non-current		290	1,994	9
Amounts due to related parties, current:
Amounts due to related parties, current		127	873	153
Amounts due to related parties, non-current:
Amounts due to related parties, non-current		438	3,008	0
Ctrip
Amounts due from related parties, current:
Amounts due from related parties, current	[1]	23	158	137
Amounts due to related parties, current:
Amounts due to related parties, current	[2]	20	140	122
Du Xiaoman
Amounts due from related parties, current:
Amounts due from related parties, current	[3]	3,297	22,642	0
Amounts due from related parties, non-current:
Amounts due from related parties, non-current	[3]	288	1,982	0
Amounts due to related parties, current:
Amounts due to related parties, current	[4]	33	223	0
Amounts due to related parties, non-current:
Amounts due to related parties, non-current	[5]	341	2,341	0
Other Related Parties
Amounts due from related parties, current:
Amounts due from related parties, current	[6]	76	521	31
Amounts due from related parties, non-current:
Amounts due from related parties, non-current		2	12	9
Amounts due to related parties, current:
Amounts due to related parties, current	[7]	74	510	31
Amounts due to related parties, non-current:
Amounts due to related parties, non-current	[8]	$ 97	¥ 667	¥ 0

[1] The balances mainly represent amounts arising from services the Company provided to Ctrip in the ordinary course of business.

[2] The balances mainly represent amounts arising from services provided by Ctrip in the ordinary course of business.

[3] The balance represents amounts due from Du Xiaoman for unsettled payments relating to the disposal and short-term interest-bearing loans due from Du Xiaoman.

[4] The balance mainly represents deferred revenue relating to future services to be provided by the Company to Du Xiaoman.

[5] The balance mainly represents an interest-bearing loan provided by Du Xiaoman to the Company.

[6] The balances represent amounts arising from services the Company provided to its equity method investees (excluding Ctrip and Du Xiaoman) and cost method investees in the ordinary course of business, and a short-term interest-bearing loan provided to a cost method investee.

[7] The balances represent amounts arising from services provided by the Company's equity method investees other than Ctrip and Du Xiaoman, and cost method investees in the ordinary course of business, and a short-term interest-bearing loan provided by a cost method investee to the Company.

[8] The balance mainly represents deferred revenue relating to the future services to be provided by the Company to an equity method investee.

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Segment Reporting - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2018 Segment
Segment Reporting [Abstract]
Number of operating segment	2

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Summary of Group's Operating Segment Results (Detail) ¥ in Millions, $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Sep. 30, 2017 CNY (¥)	Sep. 30, 2018 USD ($)	Sep. 30, 2018 CNY (¥)	Sep. 30, 2017 CNY (¥)
Segment Reporting Information [Line Items]
Total revenues			¥ 23,489			¥ 61,254
Total revenues	$ 4,106	¥ 28,203		$ 10,932	¥ 75,082
Operating costs and expenses:
Cost of revenues	2,070	14,218	11,801	5,261	36,133	31,616
Selling, general and administrative	821	5,641	3,746	1,935	13,288	9,497
Research and development	570	3,916	3,242	1,637	11,243	9,225
Total operating costs and expenses	3,461	23,775	18,789	8,833	60,664	50,338
Operating profit (loss)	645	4,428	4,700	2,099	14,418	10,916
Total other income (loss), net	1,313	9,021	4,345	1,726	11,855	5,279
Income (loss) before income taxes	1,958	13,449	9,045	3,825	26,273	16,195
Income taxes	299	2,053	1,097	620	4,259	2,066
Net income (loss)	1,659	11,396	7,948	3,205	22,014	14,129
Less: net income (loss) attributable to noncontrolling interests	(146)	(1,000)	(1)	(506)	(3,478)	(12)
Net income (loss) attributable to Baidu, Inc.	1,805	12,396	7,949	3,711	25,492	14,141
Operating Segments | Baidu Core
Segment Reporting Information [Line Items]
Total revenues			18,342			48,571
Total revenues	3,145	21,606		8,409	57,751
Operating costs and expenses:
Cost of revenues	990	6,804	6,829	2,620	17,995	18,907
Selling, general and administrative	645	4,428	3,023	1,532	10,522	7,623
Research and development	489	3,359	2,901	1,435	9,859	8,337
Total operating costs and expenses	2,124	14,591	12,753	5,587	38,376	34,867
Operating profit (loss)	1,021	7,015	5,589	2,822	19,375	13,704
Total other income (loss), net	1,409	9,687	4,292	1,921	13,199	5,266
Income (loss) before income taxes	2,430	16,702	9,881	4,743	32,574	18,970
Income taxes	300	2,059	1,098	620	4,260	2,062
Net income (loss)	2,130	14,643	8,783	4,123	28,314	16,908
Less: net income (loss) attributable to noncontrolling interests	49	334	(1)	(181)	(1,241)	(9)
Net income (loss) attributable to Baidu, Inc.	2,081	14,309	8,784	4,304	29,555	16,917
Operating Segments | iQIYI
Segment Reporting Information [Line Items]
Total revenues			4,951			12,561
Total revenues	1,007	6,914		2,615	17,961
Operating costs and expenses:
Cost of revenues	1,115	7,655	4,898	2,710	18,610	12,852
Selling, general and administrative	188	1,292	777	429	2,945	1,902
Research and development	81	558	343	202	1,387	905
Total operating costs and expenses	1,384	9,505	6,018	3,341	22,942	15,659
Operating profit (loss)	(377)	(2,591)	(1,067)	(726)	(4,981)	(3,098)
Total other income (loss), net	(78)	(539)	16	(93)	(643)	(25)
Income (loss) before income taxes	(455)	(3,130)	(1,051)	(819)	(5,624)	(3,123)
Income taxes	(1)	(6)	1	0	(1)	2
Net income (loss)	(454)	(3,124)	(1,052)	(819)	(5,623)	(3,125)
Less: net income (loss) attributable to noncontrolling interests	2	16	0	2	10	0
Net income (loss) attributable to Baidu, Inc.	(456)	(3,140)	(1,052)	(821)	(5,633)	(3,125)
Intersegment Eliminations & Adjustments
Segment Reporting Information [Line Items]
Total revenues			196			122
Total revenues	(46)	(317)		(92)	(630)
Operating costs and expenses:
Cost of revenues	(35)	(241)	74	(69)	(472)	(143)
Selling, general and administrative	(12)	(79)	(54)	(26)	(179)	(28)
Research and development	0	(1)	(2)	0	(3)	(17)
Total operating costs and expenses	(47)	(321)	18	(95)	(654)	(188)
Operating profit (loss)	1	4	178	3	24	310
Total other income (loss), net	(18)	(127)	37	(102)	(701)	38
Income (loss) before income taxes	(17)	(123)	215	(99)	(677)	348
Income taxes	0	0	(2)	0	0	2
Net income (loss)	(17)	(123)	217	(99)	(677)	346
Less: net income (loss) attributable to noncontrolling interests	(197)	(1,350)	0	(327)	(2,247)	(3)
Net income (loss) attributable to Baidu, Inc.	$ 180	¥ 1,227	¥ 217	$ 228	¥ 1,570	¥ 349