eBay (EBAY) 10-Q 18 Oct 13 2013 Q3 Quarterly report Financial data

DEI_Document

DEI Document	9 Months Ended
	Sep. 30, 2013	Oct. 14, 2013
Entity Information [Line Items]
Entity Registrant Name	EBAY INC
Entity Trading Symbol	EBAY
Entity Central Index Key	1065088
Document Type	10-Q
Document Period End Date	30-Sep-13
Amendment Flag	FALSE
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q3
Current Fiscal Year End Date	-19
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Filer	No
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		1,294,597,889

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheet (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Current assets:
Cash and cash equivalents	$5,280	$6,817
Short-term investments	4,991	2,591
Accounts receivable, net	772	822
Loans and interest receivable, net	2,434	2,160
Funds receivable and customer accounts	9,073	8,094
Other current assets	926	914
Total current assets	23,476	21,398
Long-term investments	4,138	3,044
Property and equipment, net	2,763	2,491
Goodwill	8,566	8,537
Intangible assets, net	863	1,128
Other assets	261	476
Total assets	40,067	37,074
Current liabilities:
Short-term debt	408	413
Accounts payable	288	301
Funds payable and amounts due to customers	9,073	8,094
Accrued expenses and other current liabilities	2,008	1,916
Deferred revenue	164	137
Income taxes payable	87	63
Total current liabilities	12,028	10,924
Deferred and other tax liabilities, net	914	972
Long-term debt	4,123	4,106
Other liabilities	235	207
Total liabilities	17,300	16,209
Commitments and contingencies (Note 10)
Stockholders' equity:
Common stock, $0.001 par value; 3,580 shares authorized; 1,294 and 1,294 shares outstanding	2	2
Additional paid-in capital	12,697	12,062
Treasury stock at cost, 291 and 271 shares	-9,141	-8,053
Retained earnings	18,004	15,998
Accumulated other comprehensive income	1,205	856
Total stockholders' equity	22,767	20,865
Total liabilities and stockholders' equity	$40,067	$37,074

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheet (Parenthetical) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Millions, except Per Share data, unless otherwise specified
Common stock - par value	$0.00	$0.00
Common stock - shares authorized	3,580	3,580
Common stock - shares issued	0	0
Common stock - shares outstanding	1,294	1,294
Treasury stock - shares	291	271

Condensed_Consolidated_Stateme

Condensed Consolidated Statement of Income (USD $)	3 Months Ended				9 Months Ended
In Millions, except Per Share data, unless otherwise specified	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Income Statement [Abstract]
Net revenues	$3,892	[1]	$3,404	[1]	$11,517	[1]	$10,079	[1]
Cost of net revenues	1,224		1,022		3,587		2,992
Gross profit	2,668		2,382		7,930		7,087
Operating expenses:
Sales and marketing	755		726		2,223		2,120
Product development	433		389		1,318		1,157
General and administrative	415		369		1,242		1,131
Provision for transaction and loan losses	185		148		553		413
Amortization of acquired intangible assets	81		83		245		251
Total operating expenses	1,869		1,715		5,581		5,072
Income from operations	799	[1]	667	[1]	2,349	[1]	2,015	[1]
Interest and other, net	74		5		89		74
Gain on divested business	0		0		0		118
Income before income taxes	873		672		2,438		2,207
Provision for income taxes	-184		-75		-432		-348
Net income	$689		$597		$2,006		$1,859
Net income per share:
Basic	$0.53		$0.46		$1.55		$1.44
Diluted	$0.53		$0.45		$1.53		$1.42
Weighted average shares:
Basic	1,295		1,292		1,296		1,291
Diluted	1,310		1,314		1,314		1,311
[1]	Certain amounts may not add due to rounding.

Condensed_Consolidated_Stateme1

Condensed Consolidated Statement of Comprehensive Income (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Statement of Comprehensive Income [Abstract]
Net income	$689	$597	$2,006	$1,859
Other comprehensive income (loss), net of reclassification adjustments:
Foreign currency translation	353	191	88	80
Unrealized gains (losses) on investments, net	243	89	459	126
Tax (expense) benefit on unrealized gains (losses) on investments, net	-86	-24	-175	-18
Unrealized gains (losses) on hedging activities, net	-135	-73	-24	-90
Tax (expense) benefit on unrealized gains (losses) on hedging activities, net	4	2	1	2
Other comprehensive income (loss), net tax	379	185	349	100
Comprehensive income	$1,068	$782	$2,355	$1,959

Condensed_Consolidated_Stateme2

Condensed Consolidated Statement of Cash Flows (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Cash flows from operating activities:
Net income	$2,006	$1,859
Adjustments:
Provision for transaction and loan losses	553	413
Depreciation and amortization	1,033	882
Stock-based compensation	412	360
Gain on sale of RueLaLa and ShopRunner	-75	0
Gain on divested business	0	-118
Changes in assets and liabilities, net of acquisition effects	-647	-943
Net cash provided by operating activities	3,282	2,453
Cash flows from investing activities:
Purchases of property and equipment	-969	-961
Changes in principal loans receivable, net	-395	-335
Purchases of investments	-5,726	-1,470
Maturities and sales of investments	2,710	938
Acquisitions, net of cash acquired	-85	-143
Repayment of Kynetic note receivable and sale of RueLaLa and ShopRunner	485	0
Proceeds from divested business, net of cash disposed	0	144
Other	-14	-77
Net cash used in investing activities	-3,994	-1,904
Cash flows from financing activities:
Proceeds from issuance of common stock	301	359
Repurchases of common stock	-1,088	-642
Excess tax benefits from stock-based compensation	180	95
Tax witholdings related to net share settlements of restricted stock awards and units	-247	-152
Net (repayments) and borrowings under commercial paper program	0	-550
Proceeds from the issuance of debt, net of issuance costs	0	2,976
Funds receivable and customer accounts	-979	-839
Funds payable and amounts due to customers	979	839
Other	0	-4
Net cash provided by (used in) financing activities	-854	2,082
Effect of exchange rate changes on cash and cash equivalents	29	9
Net increase (decrease) in cash and cash equivalents	-1,537	2,640
Cash and cash equivalents at beginning of period	6,817	4,691
Cash and cash equivalents at end of period	5,280	7,331
Supplemental cash flow disclosures:
Cash paid for interest	85	15
Cash paid for income taxes	$348	$757

The_Company_and_Summary_of_Sig

The Company and Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2013
Company and Summary of Significant Accounting Policies Disclosure [Abstract]
The Company and Summary of Significant Accounting Policies	The Company and Summary of Significant Accounting Policies
	The Company
	We are a global technology company that enables commerce through three reportable business segments: Marketplaces, Payments and Enterprise. Our Marketplaces segment includes our eBay.com platform and its localized counterparts and our other online trading platforms, such as our online classifieds sites and StubHub. Our Payments segment is comprised of PayPal, Bill Me Later and Zong. Our Enterprise segment, which we previously referred to as our GSI segment, consists of GSI Commerce, Inc., which we acquired in the second quarter of 2011.
	We are required to comply with various regulations worldwide in order to operate our businesses, particularly our Payments business. We also partner with banks and other financial institutions in order to offer our Payments services globally. Changes in regulations or how regulations are interpreted or enforced by governmental authorities and courts, non-compliance with laws or regulations, or loss of key bank or financial institution partners could have a significant adverse impact on our ability to operate our Payments business; therefore, we monitor these areas closely to mitigate potential adverse impacts.
	When we refer to “we,” “our,” “us” or “eBay” in this document, we mean the current Delaware corporation (eBay Inc.) and its California predecessor, as well as all of our consolidated subsidiaries, unless otherwise expressly stated or the context otherwise requires.
	Use of estimates
	The preparation of condensed consolidated financial statements in conformity with U.S. generally accepted accounting principles (GAAP) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. On an ongoing basis, we evaluate our estimates, including those related to provisions for transaction and loan losses, legal contingencies, income taxes, revenue recognition, stock-based compensation, goodwill and the recoverability of intangible assets. We base our estimates on historical experience and on various other assumptions that we believe to be reasonable under the circumstances. Actual results could differ from those estimates.
	Principles of consolidation and basis of presentation
	The accompanying condensed financial statements are consolidated and include the financial statements of eBay Inc., our wholly and majority-owned subsidiaries and variable interest entities ("VIE") if we were the primary beneficiary. All intercompany balances and transactions have been eliminated in consolidation. Minority interests are recorded as a noncontrolling interest. A qualitative approach is applied to assess the consolidation requirement for VIEs. Investments in entities where we hold at least a 20% ownership interest and have the ability to exercise significant influence, but not control, over the investee are accounted for using the equity method of accounting. For such investments, our share of the investees' results of operations is included in interest and other, net and our investment balance is included in long-term investments. Investments in entities where we hold less than a 20% ownership interest are generally accounted for using the cost method of accounting, and our share of the investees' results of operations is included in our consolidated statement of income to the extent dividends are received.
	These condensed consolidated financial statements and accompanying notes should be read in conjunction with the audited consolidated financial statements and accompanying notes included in our Annual Report on Form 10-K for the year ended December 31, 2012. We have evaluated all subsequent events through the date these condensed consolidated financial statements were issued. In the opinion of management, these condensed consolidated financial statements reflect all adjustments, consisting only of normal recurring adjustments, which are necessary for fair presentation of the condensed consolidated financial statements, for the interim period.
	Recent Accounting Pronouncements
	In 2013, the Financial Accounting Standards Board ("FASB") issued new accounting guidance clarifying the accounting for the release of a cumulative translation adjustment into net income when a parent either sells a part or all of its investment in a foreign entity or no longer holds a controlling financial interest in a subsidiary or group of assets that is a nonprofit activity or a business within a foreign entity.  The new standard is effective for fiscal years, and interim periods within those fiscal years, beginning on or after December 15, 2013. We do not anticipate that this adoption will have a significant impact on our financial position, results of operations, or cash flows.
	In 2013, FASB issued new accounting guidance clarifying the accounting for obligations resulting from joint and several liability arrangements for which the total amount under the arrangement is fixed at the reporting date. The new standard is effective for fiscal years, and interim periods within those fiscal years, beginning on or after December 15, 2013. We do not anticipate that this adoption will have a significant impact on our financial position, results of operations, or cash flows.

Net_Income_per_Share

Net Income per Share	9 Months Ended
	Sep. 30, 2013
Earnings Per Share [Abstract]
Net income	Net Income Per Share
	Basic net income per share is computed by dividing net income for the period by the weighted average number of shares of common stock outstanding during the period. Diluted net income per share is computed by dividing net income for the period by the weighted average number of shares of common stock and potentially dilutive common stock outstanding during the period. The dilutive effect of outstanding options and restricted stock is reflected in diluted net income per share by application of the treasury stock method. The calculation of diluted net income per share excludes all anti-dilutive shares of common stock. The following table sets forth the computation of basic and diluted net income per share for the periods indicated:
		Three Months Ended September 30,				Nine Months Ended September 30,
		2013		2012		2013		2012
		(In millions, except per share amounts)
	Numerator:
	Net income	$	689	$	597	$	2,006	$	1,859
	Denominator:
	Weighted average shares of common stock - basic	1,295		1,292		1,296		1,291
	Dilutive effect of equity incentive plans	15		22		18		20
	Weighted average shares of common stock - diluted	1,310		1,314		1,314		1,311
	Net income per share:
	Basic	$	0.53	$	0.46	$	1.55	$	1.44
	Diluted	$	0.53	$	0.45	$	1.53	$	1.42
	Common stock equivalents excluded from income per diluted share because their effect would have been anti-dilutive	2		3		2		6

Business_Combinations_and_Dive

Business Combinations and Divestitures	9 Months Ended
	Sep. 30, 2013
Business Combinations [Abstract]
Business Combinations and Divestitures	Business Combinations
	During the nine months ended September 30, 2013, we completed four acquisitions, three of which are included in our Marketplaces segment and one in our Payments segment, for aggregate purchase consideration of approximately $83 million, consisting primarily of cash. The allocation of the purchase consideration resulted in net liabilities of approximately $7 million, purchased intangible assets of approximately $41 million and goodwill of approximately $49 million. The allocations of the purchase price for these acquisitions have been prepared on a preliminary basis and changes to those allocations may occur as additional information becomes available. The consolidated financial statements include the operating results of the acquired businesses since the respective dates of the acquisitions. Pro forma results of operations have not been presented because the effect of the acquisitions was not material to our financial results.
	Additionally, on September 26, 2013 we announced an agreement to acquire Braintree, a global payment platform, for total consideration of approximately $800 million. This acquisition is expected to close late in the fourth quarter of 2013.

Goodwill_and_Intangible_Assets

Goodwill and Intangible Assets	9 Months Ended
	Sep. 30, 2013
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Goodwill and Intangible Assets
	Goodwill
	The following table presents goodwill balances and adjustments to those balances for each of our reportable segments during the nine months ended September 30, 2013:
		December 31,			Goodwill			Adjustments			September 30,
		2012			Acquired						2013
		(In millions)
	Reportable segments:
	Marketplaces	$	4,732		$	45		$	(19	)	$	4,758
	Payments	2,519			4			(1		)	2,522
	Enterprise	1,239			—			—			1,239
	Corporate and other	47			—			—			47
		$	8,537		$	49		$	(20	)	$	8,566
	The adjustments to goodwill and goodwill acquired during the nine months ended September 30, 2013 were due primarily to foreign currency translation.
	Intangible Assets
	The components of identifiable intangible assets are as follows:
		September 30, 2013											December 31, 2012
		Gross Carrying Amount			Accumulated Amortization			Net Carrying Amount			Weighted Average Useful Life (Years)		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Weighted Average Useful Life (Years)
		(In millions, except years)
	Intangible assets:
	Customer lists and user base	$	1,648		$	(1,159	)	$	489		5		$	1,644	$	(991	)	$	653	5
	Trademarks and trade names	771			(645		)	126			5		743		(569		)	174		5
	Developed technologies	538			(378		)	160			4		525		(322		)	203		4
	All other	263			(175		)	88			4		252		(154		)	98		4
		$	3,220		$	(2,357	)	$	863				$	3,164	$	(2,036	)	$	1,128
	Amortization expense for intangible assets was $107 million and $110 million for the three months ended September 30, 2013 and 2012, respectively. Amortization expense for intangible assets was $323 million and $329 million for the nine months ended September 30, 2013 and 2012, respectively.
	Expected future intangible asset amortization as of September 30, 2013 is as follows (in millions):
	Fiscal years:
	Remaining 2013		$	100
	2014		315
	2015		252
	2016		128
	2017		38
	Thereafter		30
			$	863

Segments

Segments	9 Months Ended
	Sep. 30, 2013
Segment Reporting [Abstract]
Segments	Segments
	We have three reportable segments: Marketplaces, Payments and Enterprise. We allocate resources to and assess the performance of each reportable segment using information about its revenue and operating income (loss). We do not evaluate operating segments using discrete asset information. We do not allocate gains and losses from equity investments, interest and other income, or taxes to operating segments.
	The corporate and other category includes income, expenses and charges such as:
	•	results of operations of various initiatives which support all of our reportable segments;
	•	corporate management costs, such as human resources, finance and legal, not allocated to our segments;
	•	amortization of intangible assets;
	•	restructuring charges; and
	•	stock-based compensation expense.
	The following tables summarize the financial performance of our reportable segments and reconciliation to our consolidated operating results for the periods reflected below (1):
		Three Months Ended September 30,						Nine Months Ended September 30,
		2013			2012			2013			2012
		(In millions)
	Net Revenue
	Marketplaces
	Net transaction revenues	$	1,668		$	1,490		$	4,913		$	4,406
	Marketing services and other revenues	359			316			1,072			942
		2,027			1,806			5,985			5,348
	Payments
	Net transaction revenues	1,493			1,264			4,403			3,715
	Marketing services and other revenues	127			102			389			318
		1,620			1,367			4,792			4,033
	Enterprise
	Net transaction revenues	185			170			565			516
	Marketing services and other revenues	53			57			155			168
		238			226			720			684
	Corporate and other
	Marketing services and other revenues	14			11			40			27
	Elimination of inter-segment net revenue (2)	(7		)	(6		)	(20		)	(13		)
	Total consolidated net revenue	$	3,892		$	3,404		$	11,517		$	10,079
	Operating income (loss)
	Marketplaces	$	789		$	705		$	2,406		$	2,093
	Payments	368			309			1,116			1,004
	Enterprise	12			14			29			47
	Corporate and other	(370		)	(361		)	(1,202		)	(1,129		)
	Total operating income (loss)	$	799		$	667		$	2,349		$	2,015
	(1) Certain amounts may not add due to rounding.
	(2) Represents revenue generated between our reportable segments.

Kynetic_Note_and_Related_Inves

Kynetic Note and Related Investments (Notes)	9 Months Ended
	Sep. 30, 2013
Receivables [Abstract]
Kynetic Note and Related Investments	Kynetic Note and Related Investments
	In conjunction with our acquisition of GSI Commerce, Inc. ("GSI") in June 2011, we immediately divested 100% of GSI's licensed sports merchandise business and 70% of GSI's ShopRunner and RueLaLa businesses, and sold them to NRG Commerce, LLC (now known as Kynetic, LLC), a newly formed holding company led by GSI's former Chairman, President and CEO, Michael Rubin, in exchange for a note receivable. In September 2013, this note receivable was repaid and our investments in RueLaLa and ShopRunner were sold for total cash proceeds of $485 million. This transaction resulted in a net gain of approximately $75 million, which has been recognized in interest and other, net in our condensed consolidated statement of income.

Fair_Value_Measurement_of_Asse

Fair Value Measurement of Assets and Liabilities	9 Months Ended
	Sep. 30, 2013
Fair Value Disclosures [Abstract]
Fair Value Measurement of Assets and Liabilities	Fair Value Measurement of Assets and Liabilities
	The following tables summarize our financial assets and liabilities measured at fair value on a recurring basis as of September 30, 2013 and December 31, 2012:
	Description	Balance as of		Quoted Prices in		Significant Other
		30-Sep-13		Active Markets for		Observable Inputs
				Identical Assets		(Level 2)
				(Level 1)
		(In millions)
	Assets:
	Cash and cash equivalents	$	5,280	$	4,791	$	489
	Short-term investments:
	Restricted cash	14		14		—
	Corporate debt securities	3,697		—		3,697
	Government and agency securities	48		—		48
	Time deposits	120		—		120
	Equity instruments	1,112		1,112		—
	Total short-term investments	4,991		1,126		3,865
	Funds receivable and customer accounts	1,864		—		1,864
	Derivatives	46		—		46
	Long-term investments:
	Corporate debt securities	3,582		—		3,582
	Government and agency securities	281		—		281
	Total long-term investments	3,863		—		3,863
	Total financial assets	$	16,044	$	5,917	$	10,127
	Liabilities:
	Derivatives	$	139	$	—	$	139
	Description	Balance as of		Quoted Prices in		Significant Other
		31-Dec-12		Active Markets for		Observable Inputs
				Identical Assets		(Level 2)
				(Level 1)
		(In millions)
	Assets:
	Cash and cash equivalents	$	6,817	$	5,685	$	1,132
	Short-term investments:
	Restricted cash	15		15		—
	Corporate debt securities	1,153		—		1,153
	Government and agency securities	20		—		20
	Time deposits	765		—		765
	Equity instruments	638		638		—
	Total short-term investments	2,591		653		1,938
	Derivatives	55		—		55
	Long-term investments:
	Corporate debt securities	2,669		—		2,669
	Government and agency securities	42		—		42
	Total long-term investments	2,711		—		2,711
	Total financial assets	$	12,174	$	6,338	$	5,836
	Liabilities:
	Derivatives	$	86	$	—	$	86
	Our financial assets and liabilities are valued using market prices on both active markets (level 1) and less active markets (level 2). Level 1 instrument valuations are obtained from real-time quotes for transactions in active exchange markets involving identical assets. Level 2 instrument valuations are obtained from readily available pricing sources for comparable instruments, identical instruments in less active markets, or models using market observable inputs. The majority of our derivative instruments are valued using pricing models that take into account the contract terms as well as multiple inputs where applicable, such as equity prices, interest rate yield curves, option volatility and currency rates. Our derivative instruments are primarily short-term in nature, generally one month to one year in duration. Certain foreign currency contracts designated as cash flow hedges may have a duration of up to 18 months. We did not have any transfers of financial instruments between valuation levels during the first nine months of 2013.
	Cash and cash equivalents are short-term, highly liquid investments with original or remaining maturities of three months or less when purchased and are comprised primarily of bank deposits, money market funds and commercial paper. We had total funds receivable and customer accounts of $9.1 billion as of September 30, 2013, of which $1.9 billion is invested in short-term government securities.
	In addition, we had cost and equity method investments of approximately $269 million and $327 million included in long-term investments on our condensed consolidated balance sheet at September 30, 2013 and our consolidated balance sheet at December 31, 2012, respectively. As of September 30, 2013 and December 31, 2012, we also held $6 million of time deposits classified as held to maturity, which are recorded at amortized cost.
	Other financial instruments, including accounts receivable, loans and interest receivable, accounts payable, funds receivable, certain customer accounts, funds payable and amounts due to customers, are carried at cost, which approximates their fair value because of the short-term nature of these instruments.

Derivative_Instruments

Derivative Instruments	9 Months Ended
	Sep. 30, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments	Derivative Instruments
	The notional amounts associated with our foreign currency contracts at September 30, 2013 and 2012 were $6.3 billion and $5.6 billion, respectively, of which $2.9 billion and $2.2 billion, respectively, were designated as cash flow hedges. Derivative transactions are measured in terms of the notional amount, but this amount is not recorded on the balance sheet and is not, when viewed in isolation, a meaningful measure of the risk profile of the derivative instruments. The notional amount is generally not exchanged, but is used only as the basis on which the value of foreign exchange payments under these contracts are determined.
	For our derivative instruments designated as cash flow hedges, the amounts recognized in earnings related to the ineffective portion were not material in each of the periods presented, and we did not exclude any component of the changes in fair value of the derivative instruments from the assessment of hedge effectiveness. As of September 30, 2013, we estimate that approximately $55 million of net derivative losses related to our cash flow hedges included in accumulated other comprehensive income will be reclassified into earnings within the next 12 months.
	Fair Value of Derivative Contracts
	The fair value of our outstanding derivative instruments as of September 30, 2013 and December 31, 2012 was as follows:
		Derivative Assets Reported in Other Current Assets						Derivative Liabilities Reported in Other Current Liabilities
		September 30,			December 31,			September 30,			December 31,
		2013			2012			2013			2012
		(In millions)
	Foreign exchange contracts designated as cash flow hedges	$	16		$	1		$	95		$	56
	Foreign exchange contracts not designated as hedging instruments	30			43			44			30
	Other contracts not designated as hedging instruments	—			11			—			—
	Total fair value of derivative instruments	$	46		$	55		$	139		$	86
	Under the master netting agreements with the respective counterparties to our foreign exchange contracts, subject to applicable requirements, we are allowed to net settle transactions of the same currency with a single net amount payable by one party to the other.  However, we have elected to present the derivative assets and derivative liabilities on a gross basis in our balance sheet.  As of September 30, 2013, the potential effect of rights of set-off associated with the above foreign exchange contracts would be an offset to both assets and liabilities by $46 million, resulting in a net derivative liability of $93 million. We are not required to pledge, nor are we entitled to receive, cash collateral related to these derivative transactions.
	Effect of Derivative Contracts on Accumulated Other Comprehensive Income
	The following table summarizes the activity of derivative contracts that qualify for hedge accounting as of September 30, 2013 and December 31, 2012, and the impact of these derivative contracts on accumulated other comprehensive income for the nine months ended September 30, 2013:
		December 31, 2012			Amount of gain (loss)			Amount of gain (loss)			September 30, 2013
					recognized in other			reclassified from
					comprehensive income			accumulated other
					(effective portion)			comprehensive income
								to net revenue and operating expense
								(effective portion)
		(In millions)
	Foreign exchange contracts designated as cash flow hedges	$	(55	)	$	(23	)	$	1		$	(79	)
	The following table summarizes the activity of derivative contracts that qualify for hedge accounting as of September 30, 2012 and December 31, 2011, and the impact of these derivative contracts on accumulated other comprehensive income for the nine months ended September 30, 2012:
		December 31, 2011			Amount of gain (loss)			Amount of gain (loss)			September 30, 2012
					recognized in other			reclassified from
					comprehensive income			accumulated other
					(effective portion)			comprehensive income
								to net revenue and operating expense
								(effective portion)
		(In millions)
	Foreign exchange contracts designated as cash flow hedges	$	72		$	(30	)	$	60		$	(18	)
	Effect of Derivative Contracts on Condensed Consolidated Statement of Income
	The following table provides the location in our financial statements of the recognized gains or losses related to our derivative instruments:
		Three Months Ended September 30,						Nine Months Ended September 30,
		2013			2012			2013			2012
		(In millions)
	Foreign exchange contracts designated as cash flow hedges recognized in net revenues	$	6		$	16		$	9		$	42
	Foreign exchange contracts designated as cash flow hedges recognized in operating expenses	(2		)	6			(8		)	15
	Foreign exchange contracts not designated as hedging instruments recognized in interest and other, net	(4		)	(2		)	13			(10		)
	Other contracts not designated as hedging instruments recognized in interest and other, net	—			—			—			4
	Total gain (loss) recognized from derivative contracts in the condensed consolidated statement of income	$	—		$	20		$	14		$	51

Debt

Debt	9 Months Ended
	Sep. 30, 2013
Debt Disclosure [Abstract]
Debt	Debt
	The following table summarizes the carrying value of our outstanding debt:
		Coupon		Carrying Value as of		Effective		Carrying Value as of		Effective
		Rate		September 30, 2013		Interest Rate		December 31, 2012		Interest Rate
		(In millions, except percentages)
	Long-Term Debt
	Senior notes due 2015	1.625	%	$	599	1.805	%	$	599	1.805	%
	Senior notes due 2015	0.7	%	250		0.82	%	250		0.82	%
	Senior notes due 2017	1.35	%	999		1.456	%	999		1.456	%
	Senior notes due 2020	3.25	%	498		3.389	%	498		3.389	%
	Senior notes due 2022	2.6	%	999		2.678	%	999		2.678	%
	Senior notes due 2042	4	%	743		4.114	%	742		4.114	%
	Total senior notes			4,088				4,087
	Other indebtedness			35				19
	Total long-term debt			$	4,123			$	4,106
	Short-Term Debt
	Senior notes due 2013	0.875	%	$	400	1.078	%	$	400	1.078	%
	Other indebtedness			8				13
	Total short-term debt			408				413
	Total Debt			$	4,531			$	4,519
	Senior Notes
	The effective interest rates for our fixed-rate senior notes include the interest payable, the amortization of debt issuance costs and the amortization of any original issue discount on these senior notes. Interest on these senior notes is payable semiannually. Interest expense associated with these senior notes, including amortization of debt issuance costs, during the three months ended September 30, 2013 and 2012 was approximately $26 million and $21 million, respectively. Interest expense associated with these senior notes, including amortization of debt issuance costs, during the nine months ended September 30, 2013 and 2012 was approximately $79 million and $37 million, respectively. At September 30, 2013, the estimated fair value of all these senior notes included in long-term debt was approximately $4.0 billion.
	The indenture pursuant to which the senior notes were issued includes customary covenants that, among other things and subject to exceptions, limit our ability to incur, assume or guarantee debt secured by liens on specified assets or enter into sale and lease-back transactions with respect to specified properties, and also includes customary events of default.
	Other Indebtedness
	Our other indebtedness is comprised of overdraft facilities, notes payable, and capital lease obligations. We have formal overdraft facilities in Brazil and India. Drawn balances bear interest at rates ranging from 8% to 11% per annum and are expected to be repaid in more than one year. Notes payable is comprised primarily of a note that bears interest at 6.3% per annum and has a maturity date of July 2034. Our capital leases have maturity dates ranging from December 2013 to September 2014 and bear interest at rates ranging from 3% to 7% per annum. The present value of future minimum capital lease payments as of September 30, 2013 was $7 million with imputed interest of less than $1 million.
	Commercial Paper
	We have a $2 billion commercial paper program pursuant to which we may issue commercial paper notes with maturities of up to 397 days from the date of issue. As of September 30, 2013, there were no commercial paper notes outstanding.
	Credit Agreement
	As of September 30, 2013, no borrowings or letters of credit were outstanding under our $3 billion credit agreement. As described above, we have a $2 billion commercial paper program and maintain $2 billion of available borrowing capacity under our credit agreement in order to repay commercial paper borrowings in the event we are unable to repay those borrowings from other sources when they become due.  As a result, at September 30, 2013, $1 billion of borrowing capacity was available for other purposes permitted by the credit agreement.  The credit agreement includes customary representations, warranties, affirmative and negative covenants, including a financial covenant, events of default and indemnification provisions in favor of the banks. The negative covenants include restrictions regarding the incurrence of liens, subject to exceptions. The financial covenant requires us to meet a quarterly financial test with respect to a minimum consolidated interest coverage ratio.
	As of September 30, 2013, we were in compliance with all covenants in our outstanding debt instruments.

Commitments_and_Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2013
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies
	Commitments
	As of September 30, 2013, approximately $14.6 billion of unused credit was available to Bill Me Later accountholders. While this amount represents the total unused credit available, we have not experienced, and do not anticipate, that all of our Bill Me Later accountholders will access their entire available credit at any given point in time. In addition, the individual lines of credit that make up this unused credit are subject to periodic review and termination by the chartered financial institution that is the issuer of Bill Me Later credit products based on, among other things, account usage and customer creditworthiness. When a consumer makes a purchase using a Bill Me Later credit product, the chartered financial institution extends credit to the consumer, funds the extension of credit at the point of sale and advances funds to the merchant. We subsequently purchase the consumer receivables related to the consumer loans and sell a participation interest back to the chartered financial institution. Although the chartered financial institution continues to own each customer account, we own and bear the risk of loss on the related consumer receivables, less the participation interest held by the chartered financial institution, and Bill Me Later is responsible for all servicing functions related to the customer account balances.
	Litigation and Other Legal Matters
	Overview
	We are involved in legal proceedings on an ongoing basis. If we believe that a loss arising from such matters is probable and can be reasonably estimated, we accrue the estimated liability in our financial statements. If only a range of estimated losses can be determined, we accrue an amount within the range that, in our judgment, reflects the most likely outcome; if none of the estimates within that range is a better estimate than any other amount, we accrue the low end of the range. Amounts accrued for legal proceedings for which we believe a loss is probable were not material for the nine months ended September 30, 2013. Except as otherwise noted, we have concluded that reasonably possible losses arising directly from the proceedings (i.e., monetary damages or amounts paid in judgment or settlement) in excess of our accruals are also not material. For those proceedings in which an unfavorable outcome is reasonably possible but not probable, we have disclosed an estimate of the reasonably possible loss or range of losses or we have concluded that an estimate of the reasonably possible loss or range of losses arising directly from the proceeding (i.e., monetary damages or amounts paid in judgment or settlement) are not material. If we cannot estimate the probable or reasonably possible loss or range of losses arising from a legal proceeding, we have disclosed that fact.
	In assessing the materiality of a legal proceeding, we evaluate, among other factors, the amount of monetary damages claimed, as well as the potential impact of non-monetary remedies sought by plaintiffs (e.g., injunctive relief) that may require us to change our business practices in a manner that could have a material adverse impact on our business. With respect to the matters disclosed in this Note 10, we are unable to estimate the possible loss or range of losses that could potentially result from the application of such non-monetary remedies.
	Specific Matters
	In August 2006, Louis Vuitton Malletier and Christian Dior Couture filed two lawsuits in the Paris Court of Commerce against eBay Inc. and eBay International AG. Among other things, the complaint alleged that we violated French tort law by negligently broadcasting listings posted by third parties offering counterfeit items bearing plaintiffs' trademarks and by purchasing certain advertising keywords. Around September 2006, Parfums Christian Dior, Kenzo Parfums, Parfums Givenchy, and Guerlain Société also filed a lawsuit in the Paris Court of Commerce against eBay Inc. and eBay International AG. The complaint alleged that we had interfered with the selective distribution network the plaintiffs established in France and the European Union by allowing third parties to post listings offering genuine perfumes and cosmetics for sale on our websites. In June 2008, the Paris Court of Commerce ruled that eBay and eBay International AG were liable for failing to prevent the sale of counterfeit items on its websites that traded on plaintiffs' brand names and for interfering with the plaintiffs' selective distribution network. The court awarded plaintiffs approximately EUR 38.6 million in damages and issued an injunction (enforceable by daily fines of up to EUR 100,000) prohibiting all sales of perfumes and cosmetics bearing the Dior, Guerlain, Givenchy and Kenzo brands over all worldwide eBay sites to the extent that they are accessible from France. We appealed this decision, and in September 2010, the Paris Court of Appeal reduced the damages award to EUR 5.7 million and modified the injunction. We further appealed this decision to the French Supreme Court, and in May 2012, the French Supreme Court ruled that the appeal court should not have assumed jurisdiction upon activity that took place on the eBay.com site and that the injunction was too broad insofar as it did not exclude private sales. The court also noted that the appeal court had not sufficiently dealt with assertions that the plaintiffs' distribution contracts were not valid. Those matters will now be remanded to the Paris Court of Appeal. In 2009, plaintiffs filed an action regarding our compliance with the original injunction, and in November 2009, the court awarded the plaintiffs EUR 1.7 million (the equivalent of EUR 2,500 per day) and indicated that as a large Internet company we should do a better job of enforcing the injunction. Parfums Christian Dior has filed another motion relating to our compliance with the injunction. We have taken measures to comply with the injunction and have appealed these rulings, noting, among other things, the modification of the initial injunction. In light of the French Supreme Court ruling mentioned above, we asked the court to stay proceedings with respect to enforcement of the injunction pending the retrial of the matters on appeal, and this request has been granted. However, these and similar suits may force us to modify our business practices, which could lower our revenue, increase our costs, or make our websites less convenient to our customers. Any such results could materially harm our business. Other brand owners have also filed suit against us or have threatened to do so in numerous different jurisdictions, seeking to hold us liable for, among other things, alleged counterfeit items listed on our websites by third parties, “tester” and other not for resale consumer products listed on our websites by third parties, alleged misuse of trademarks in listings, alleged violations of selective distribution channel laws, alleged violations of parallel import laws, alleged non-compliance with consumer protection laws and in connection with paid search advertisements. We have prevailed in some of these suits, lost in others, and many are in various stages of appeal. We continue to believe that we have meritorious defenses to these suits and intend to defend ourselves vigorously.
	In May 2009, the U.K. High Court of Justice ruled in the case filed by L'Oréal SA, Lancôme Parfums et Beauté & Cie, Laboratoire Garnier & Cie and L'Oréal (UK) Ltd against eBay International AG, other eBay companies, and several eBay sellers (No. HC07CO1978) that eBay was not jointly liable with the seller co-defendants as a joint tortfeasor, and indicated that it would certify to the European Court of Justice (ECJ) questions of liability for the use of L'Oréal trademarks, hosting liability, and the scope of a possible injunction against intermediaries. In July 2011, the ECJ ruled on the questions certified by the U.K. High Court of Justice. It held that (a) brand names could be used by marketplaces as keywords for paid search advertising without violating a trademark owner's rights if it were clear to consumers that the goods reached via the key word link were not being offered by the trademark owner or its designees but instead by third parties, (b) that marketplaces could invoke the limitation from liability provided by Article 14 of the ecommerce directive if they did not take such an active role with respect to the listings in question that the limitation would not be available, but that even where the limitation was available, the marketplace could be liable if it had awareness (through notice or its own investigation) of the illegality of the listings, (c) that a marketplace would be liable in a specific jurisdiction only if the offers on the site at issue were targeting that jurisdiction, a question of fact, (d) that injunctions may be issued to a marketplace in connection with infringing third party content, but that such injunctions must be proportionate and not block legitimate trade and (e) that trademark rights can only be evoked by a rights owner as a result of a seller's commercial activity as opposed to private activity. The matter will now return to the U.K. High Court of Justice for further action in light of the ECJ opinion. The case was originally filed in July 2007. L'Oréal's complaint alleged that we were jointly liable for trademark infringement for the actions of the sellers who allegedly sold counterfeit goods, parallel imports and testers (not for resale products). Additionally, L'Oréal claimed that eBay's use of L'Oréal brands on its website, in its search engine and in sponsored links, and purchase of L'Oréal trademarks as keywords, constitute trademark infringement. The suit sought an injunction preventing future infringement, full disclosure of the identity of all past and present sellers of infringing L'Oréal goods, and a declaration that our Verified Rights Owner (VeRO) program as then operated was insufficient to prevent such infringement. The scope of a possible injunction claimed is to be specified after the trial upon remand from the ECJ.
	eBay's Korean subsidiary, IAC (which has merged into Gmarket and is now named eBay Korea), has notified its approximately 20 million users of a January 2008 data breach involving personally identifiable information including name, address, resident registration number and some transaction and refund data (but not including credit card information or real time banking information). Approximately 149,000 users sued IAC over this breach in several lawsuits in Korean courts and more may do so in the future (including after final determination of liability). Trial for a group of representative suits began in August 2009 in the Seoul Central District Court, and trial for other suits began later in the Seoul Central District Court. There is some precedent in Korea for a court to grant “consolation money” for data breaches without a specific finding of harm from the breach. Such precedents have involved payments of up to approximately $200 per user. In January 2010, one bench of the Seoul Central District Court ruled that IAC had met its obligations with respect to defending the site from intrusion and, accordingly, had no liability for the breach. This January 2010 ruling was appealed by approximately 34,000 plaintiffs to the Seoul High Court. In September 2012, a bench of the Seoul High Court announced its decision upholding the Seoul Central District Court's January 2010 decision for three cases involving 55 plaintiffs (who did not appeal to the Korea Supreme Court). So far during 2013, the Seoul High Court has upheld the Seoul Central District Court's January 2010 ruling in another 18 cases involving 33,795 plaintiffs. The Seoul High Court's decision in 11 of these 18 cases has been appealed by 33,522 plaintiffs to the Korea Supreme Court, and there was no appeal in the seven other cases. Currently, the Korea Supreme Court is reviewing a total of 12 cases with 33,525 plaintiffs, including one case appealed from the Daegu High Court. In January 2013, the Seoul Western District Court ruled in favor of IAC with respect to two cases filed by 2,291 plaintiffs by following the Seoul Central District Court's January 2010 ruling, and 2,284 plaintiffs proceeded to appeal the January 2013 decision of the Seoul Western District Court to the Seoul High Court.
	General Matters
	Other third parties have from time to time claimed, and others may claim in the future, that we have infringed their intellectual property rights. We are subject to patent disputes, and expect that we will increasingly be subject to additional patent infringement claims involving various aspects of our Marketplaces, Payments and Enterprise (formerly known as GSI) businesses as our services continue to expand in scope and complexity. Such claims may be brought directly against our companies and/or against our customers (who may be entitled to contractual indemnification under their contracts with us), and we are subject to increased exposure to such claims as a result of our acquisitions of other businesses or assets, particularly in cases where we are entering into new businesses in connection with such acquisitions. We have in the past been forced to litigate such claims. We may also become more vulnerable to third-party claims as laws such as the Digital Millennium Copyright Act, the Lanham Act and the Communications Decency Act are interpreted by the courts, and as we expand the range and geographical scope of our services and become subject to laws in jurisdictions where the underlying laws with respect to the potential liability of online intermediaries like ourselves are either unclear or less favorable. We believe that additional lawsuits alleging that we have violated patent, copyright or trademark laws will be filed against us. Intellectual property claims, whether meritorious or not, are time consuming and costly to defend and resolve, could require expensive changes in our methods of doing business, or could require us to enter into costly royalty or licensing agreements on unfavorable terms.
	From time to time, we are involved in other disputes or regulatory inquiries that arise in the ordinary course of business. These disputes and inquiries include suits by our users (individually or as class actions) alleging, among other things, improper credit and/or collection activities; improper disclosure of our prices, rules or policies; that our prices, rules, policies or customer/user agreements violate applicable law; that we have not acted in conformity with such prices, rules, policies or agreements; or violations of privacy laws and policies. The number and significance of these disputes and inquiries continue to increase as our company has grown larger, our businesses have expanded in scope (both in terms of the range of products and services that we offer and our geographical operations) and our products and services have increased in complexity. Any claims or regulatory actions against us, whether meritorious or not, could be time consuming, result in costly litigation, damage awards (including statutory damages for certain causes of action in certain jurisdictions), injunctive relief or increased costs of doing business through adverse judgment or settlement, require us to change our business practices in expensive ways, require significant amounts of management time, result in the diversion of significant operational resources or otherwise harm our business.
	Indemnification Provisions
	In the ordinary course of business, we have included limited indemnification provisions in certain of our agreements with parties with which we have commercial relations, including our standard marketing, promotions and application-programming-interface license agreements. Under these contracts, we generally indemnify, hold harmless and agree to reimburse the indemnified party for losses suffered or incurred by the indemnified party in connection with claims by a third party with respect to our domain names, trademarks, logos and other branding elements to the extent that such marks are applicable to our performance under the subject agreement. In certain cases, we have agreed to provide indemnification for intellectual property infringement. Our Enterprise business has provided in many of its major ecommerce agreements an indemnity for other types of third-party claims, which are indemnities mainly related to various intellectual property rights, and we have provided similar indemnities in a limited number of agreements for our other businesses, including our Magento business. In our PayPal business, we have provided an indemnity to our payment processors in the event of certain third-party claims or card association fines against the processor arising out of conduct by PayPal or PayPal customers. PayPal has also provided a limited indemnity to merchants using its retail point of sale payment services. It is not possible to determine the maximum potential loss under these indemnification provisions due to our limited history of prior indemnification claims and the unique facts and circumstances involved in each particular provision. To date, losses recorded in our statement of income in connection with our indemnification provisions have not been significant, either individually or collectively.
	Off-Balance Sheet Arrangements
	As of September 30, 2013, we had no off-balance sheet arrangements that have, or are reasonably likely to have, a current or future material effect on our consolidated financial condition, results of operations, liquidity, capital expenditures or capital resources.
	In Europe, we have two cash pooling arrangements with a financial institution for cash management purposes. These arrangements allow for cash withdrawals from this financial institution based upon our aggregate operating cash balances held in Europe within the same financial institution (“Aggregate Cash Deposits”) for more efficient cash management and investment purposes. These arrangements also allow us to withdraw amounts exceeding the Aggregate Cash Deposits up to an agreed-upon limit. The net balance of the withdrawals and the Aggregate Cash Deposits are used by the financial institution as a basis for calculating our net interest expense or income under these arrangements. As of September 30, 2013, we had a total of $3.1 billion in cash withdrawals offsetting our $3.1 billion in Aggregate Cash Deposits held within the same financial institution under these cash pooling arrangements.

Stock_Repurchase_Programs

Stock Repurchase Programs	9 Months Ended
	Sep. 30, 2013
Stock Repurchase Programs [Abstract]
Stock Repurchase Programs	Stock Repurchase Programs
	In June 2012, our Board of Directors authorized a stock repurchase program that provides for the repurchase of up to $2 billion of our common stock, with no expiration from the date of authorization. The stock repurchase program is intended to offset the impact of dilution from our equity compensation programs. The stock repurchase activity under our stock repurchase program during the nine months ended September 30, 2013 is summarized as follows:
		Shares Repurchased	Average Price per Share		Value of Shares Repurchased		Remaining Amount Authorized
		(In millions, except per share amounts)
	Balance as of January 1, 2013	—	$	51.89	$	17	$	1,983
	Repurchase of shares of common stock	20	54.95		1,088		(1,088		)
	Balance as of September 30, 2013	20	$	54.9	$	1,105	$	895
	These repurchased shares of common stock were recorded as treasury stock and were accounted for under the cost method. No repurchased shares of common stock have been retired.

StockBased_Plans

Stock-Based Plans	9 Months Ended
	Sep. 30, 2013
Stock-Based Plans Disclosure [Abstract]
Stock-Based Plans	Stock-Based Plans
	Stock Option Activity
	The following table summarizes stock option activity for the nine months ended September 30, 2013:
		Options
		(In millions)
	Outstanding as of January 1, 2013	24
	Granted and assumed	1
	Exercised	(8	)
	Forfeited/expired/canceled	(1	)
	Outstanding as of September 30, 2013	16
	The weighted average exercise price of stock options granted during the period was $55.68 per share and the related weighted average grant date fair value was $15.47 per share.
	Restricted Stock Unit Activity
	The following table summarizes restricted stock unit ("RSU") activity for the nine months ended September 30, 2013:
		Units
		(In millions)
	Outstanding as of January 1, 2013	39
	Awarded and assumed	13
	Vested	(14	)
	Forfeited	(3	)
	Outstanding as of September 30, 2013	35
	The weighted average grant date fair value for RSUs awarded during the period was $55.50 per share.
	Stock-Based Compensation Expense
	The impact on our results of operations of recording stock-based compensation expense for the three and nine months ended September 30, 2013 and 2012 was as follows:
		Three Months Ended September 30,							Nine Months Ended September 30,
		2013			2012				2013			2012
		(In millions)
	Cost of net revenues	$	9		$	13			$	45		$	41
	Sales and marketing	38			35				112			99
	Product development	42			34				120			101
	General and administrative	51			40				135			119
	Total stock-based compensation expense	$	140		$	122			$	412		$	360
	Capitalized in product development	$	4		$	5			$	11		$	15
	Valuation Assumptions
	We calculated the fair value of each stock option award on the date of grant using the Black-Scholes option pricing model. The following weighted average assumptions were used for the three and nine months ended September 30, 2013 and 2012:
		Three Months Ended September 30,					Nine Months Ended September 30,
		2013		2012			2013			2012
	Risk-free interest rate	0.77	%	0.48	%		0.62	%		0.71	%
	Expected life (in years)	3.9		3.8			4.1			4
	Dividend yield	—	%	—	%		—	%		—	%
	Expected volatility	32	%	40	%		34	%		38	%
	Our computation of expected volatility is based on a combination of historical and market-based implied volatility from traded options on our common stock. Our computation of expected life is based on historical experience of similar awards, giving consideration to the contractual terms of the stock-based awards, vesting schedules and expectations of future employee behavior. The interest rate for periods within the contractual life of the award is based on the U.S. Treasury yield curve in effect at the time of grant.

Income_Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2013
Income Taxes [Abstract]
Income Taxes	Income Taxes
	The following table reflects changes in unrecognized tax benefits for the nine months ended September 30, 2013:
		(In millions)
	Gross amounts of unrecognized tax benefits as of January 1, 2013	$	340
	Increases related to prior period tax positions	52
	Decreases related to prior period tax positions	(52		)
	Increases related to current period tax positions	24
	Settlements	(4		)
	Gross amounts of unrecognized tax benefits as of September 30, 2013	$	360
	As of September 30, 2013, our liabilities for unrecognized tax benefits were included in accrued expenses and other current liabilities and deferred and other tax liabilities, net. The increase in liabilities for unrecognized tax benefits for the nine months ended September 30, 2013 relates primarily to the point in time at which certain foreign earnings became subject to U.S. taxation and the enactment of the federal research and development credit retroactive to 2012.
	We recognize interest and/or penalties related to uncertain tax positions in income tax expense. The amount of interest and penalties accrued as of September 30, 2013 and December 31, 2012 was approximately $67 million and $117 million, respectively. The decrease in the amount of interest and penalties accrued is due primarily to the settlement of multiple uncertain tax positions during the nine months ended September 30, 2013.
	We are subject to both direct and indirect taxation in the U.S. and various states and foreign jurisdictions. We are under examination by certain tax authorities for the 2003 to 2009 tax years. We are in the process of settlement discussions with various tax authorities that could reasonably be expected to result in a significant change to the existing tax reserve balance within the next 12 months. We believe that adequate amounts have been reserved for any adjustments that may ultimately result from these examinations or changes. The material jurisdictions where we are subject to potential examination by tax authorities for certain tax years after 2002 include, among others, the U.S. (Federal and California), France, Germany, Italy, Korea, Israel, Switzerland, Singapore and Canada.
	Although the timing of the resolution and/or closure of audits is highly uncertain, it is reasonably possible that the balance of gross unrecognized tax benefits could significantly change in the next 12 months as a result of various tax audit settlements. However, given the number of years remaining subject to examination and the number of matters being examined, we are unable to estimate the full range of possible adjustments to the balance of gross unrecognized tax benefits.
	Our effective tax rate differs from the U.S. federal statutory rate due primarily to lower tax rates associated with certain earnings from our operations outside the U.S. We have not provided for U.S. income and foreign withholding tax on certain foreign earnings as we intend to indefinitely reinvest these earnings outside the U.S. We consider projected cash needs for, among other things, investments in our existing businesses, potential acquisitions and capital transactions, including repurchases of our common stock and debt repayments. We estimate the amount of cash available or needed in the jurisdictions where these investments are expected, as well as our ability to generate cash in those jurisdictions and our access to capital markets. This analysis enables us to conclude whether or not we will indefinitely reinvest the current period's foreign earnings.

Loans_and_Interest_Receivable_

Loans and Interest Receivable, Net	9 Months Ended
	Sep. 30, 2013
Financing Receivables [Abstract]
Loans and Interest Receivable, Net	Loans and Interest Receivable, Net
	Loans and interest receivable represent purchased consumer receivables arising from loans made by partner chartered financial institutions to individual consumers in the U.S. to purchase goods and services through our Bill Me Later merchant network. Although a chartered financial institution continues to own each respective customer account, we own the related consumer receivable and Bill Me Later is responsible for all servicing functions related to the customer accounts. Effective August 29, 2013, ownership of most of the existing customer accounts was transitioned to a new chartered financial institution. As part of the arrangement with the new chartered financial institution, we sell the chartered financial institution a participation interest in the entire pool of consumer receivables outstanding under the customer accounts. During the three months ended September 30, 2013 and 2012, we purchased approximately $1.0 billion and $775 million, respectively, in consumer receivables. During the nine months ended September 30, 2013 and 2012, we purchased approximately $2.8 billion and $2.1 billion, respectively, in consumer receivables. As of September 30, 2013, the total outstanding balance of this pool of consumer receivables is $2.6 billion, of which we sold a participation interest to the new chartered financial institution of $17 million, or 0.66%.  The chartered financial institution has no recourse related to its participation interest for failure of debtors to pay when due. The participation interest held by the chartered financial institution has the same priority to the interests held by us and is subject to the same credit, prepayment, and interest rate risk associated with this pool of consumer receivables.
	Loans and interest receivable are reported at their outstanding principal balances, net of participation interest sold and pro-rata allowances, including unamortized deferred origination costs and estimated collectible interest and fees. We use a consumer's FICO score, among other measures, in evaluating the credit quality of our consumer receivables. A FICO score is a type of credit score that lenders use to assess an applicant's credit risk and whether to extend credit. Individual FICO scores generally are obtained each quarter the consumer has an outstanding consumer receivable owned by Bill Me Later. The weighted average consumer FICO score related to the pool of consumer receivables and interest receivable balance outstanding as of September 30, 2013 was 685, compared to 689 as of December 31, 2012. As of September 30, 2013 and December 31, 2012, approximately 53.7% and 55.8%, respectively, of the pool of consumer receivables and interest receivable balance was due from consumers with FICO scores greater than 680, which is generally considered "prime" by the consumer credit industry. As of September 30, 2013 and December 31, 2012, approximately 89% and 90%, respectively, of the pool of consumer receivables and interest receivable portfolio was current.
	The following table summarizes the activity in the allowance for loans and interest receivable, net of participating interest sold, for the periods indicated:
		Nine Months Ended September 30,
		2013			2012
		(In millions)
	Balance as of January 1	$	101		$	59
	Charge-offs	(161		)	(94		)
	Recoveries	9			7
	Provision	181			115
	Balance as of September 30	$	130		$	87

Restructuring_Notes

Restructuring (Notes)	9 Months Ended
	Sep. 30, 2013
Restructuring and Related Activities [Abstract]
Restructuring	Restructuring
	In the fourth quarter of 2012, we implemented a global restructuring plan designed to simplify and streamline our organization and strengthen the overall competitiveness of our existing businesses.  The plan included a strategic reduction of our existing global workforce by approximately 600 employees and 300 contractors and related activities, including the closure of certain facilities and asset impairments. The majority of the costs impacted our Payments and Enterprise segments.  In connection with the plan, we have incurred aggregate charges of approximately $26 million as of September 30, 2013, related primarily to severance and benefits, including net credits of $4 million incurred in the nine months ended September 30, 2013. The restructuring charges are included in general and administrative expenses on the consolidated statement of income. As of September 30, 2013, all restructuring actions under the plan are substantially complete.  The associated liability was $20 million as of December 31, 2012 and decreased to $3 million as of September 30, 2013 due to payments of $10 million and other adjustments (including foreign currency translation) of $7 million.

Accumulated_Other_Comprehensiv

Accumulated Other Comprehensive Income (Notes)	9 Months Ended
	Sep. 30, 2013
Accumulated Other Comprehensive Income [Abstract]
Accumulated Other Comprehensive Income	Accumulated Other Comprehensive Income
	The following table summarizes the changes in accumulated balances of other comprehensive income for the three months ended September 30, 2013:
		Unrealized Gains (Losses) on Cash Flow Hedges				Unrealized				Foreign		Estimated tax (expense) benefit			Total
						Gains on				Currency
						Investments				Translation
		(In millions)
	Beginning balance	$	56			$	903			$	184	$	(317	)	$	826
	Other comprehensive income before reclassifications	(131		)		243				353		(82		)	383
	Amount of gain (loss) reclassified from accumulated other comprehensive income	4				—				—		—			4
	Net current period other comprehensive income	(135		)		243				353		(82		)	379
	Ending balance	$	(79	)		$	1,146			$	537	$	(399	)	$	1,205
	The following table summarizes the changes in accumulated balances of other comprehensive income for the nine months ended September 30, 2013:
		Unrealized Gains (Losses) on Cash Flow Hedges				Unrealized				Foreign		Estimated tax (expense) benefit			Total
						Gains on				Currency
						Investments				Translation
		(In millions)
	Beginning balance	$	(55	)		$	687			$	449	$	(225	)	$	856
	Other comprehensive income before reclassifications	(23		)		463				88		(174		)	354
	Amount of gain (loss) reclassified from accumulated other comprehensive income	1				4				—		—			5
	Net current period other comprehensive income	(24		)		459				88		(174		)	349
	Ending balance	$	(79	)		$	1,146			$	537	$	(399	)	$	1,205
	The following table provides details about reclassifications out of accumulated other comprehensive income for the three and nine months ended September 30, 2013:
	Details about Accumulated Other Comprehensive		Amount of Gain (Loss)								Affected Line Item in the Statement of Income
	Income Components		Reclassified from
			Accumulated Other
			Comprehensive
			Income
			Three Months Ended				Nine Months Ended
			30-Sep-13				30-Sep-13
			(In millions)
	Gains (losses) on cash flow hedges - foreign exchange contracts		$	6			$	9			Net Revenues
			(1		)		(2		)		Cost of net revenues
			—				(1		)		Sales and marketing
			(1		)		(4		)		Product development
			—				(1		)		General and administrative
			4				1				Total, before income taxes
			—				—				Provision for income taxes
			4				1				Total, net of income taxes
	Unrealized gains on investments		—				4				Interest and other, net
			—				4				Total, before income taxes
			—				—				Provision for income taxes
			—				4				Total, net of income taxes
	Total reclassifications for the period		$	4			$	5			Total, net of income taxes

The_Company_and_Summary_of_Sig1

The Company and Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2013
Company and Summary of Significant Accounting Policies Disclosure [Abstract]
Use of estimates	Use of estimates
	The preparation of condensed consolidated financial statements in conformity with U.S. generally accepted accounting principles (GAAP) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. On an ongoing basis, we evaluate our estimates, including those related to provisions for transaction and loan losses, legal contingencies, income taxes, revenue recognition, stock-based compensation, goodwill and the recoverability of intangible assets. We base our estimates on historical experience and on various other assumptions that we believe to be reasonable under the circumstances. Actual results could differ from those estimates.
Principles of consolidation and basis of presentation	Principles of consolidation and basis of presentation
	The accompanying condensed financial statements are consolidated and include the financial statements of eBay Inc., our wholly and majority-owned subsidiaries and variable interest entities ("VIE") if we were the primary beneficiary. All intercompany balances and transactions have been eliminated in consolidation. Minority interests are recorded as a noncontrolling interest. A qualitative approach is applied to assess the consolidation requirement for VIEs. Investments in entities where we hold at least a 20% ownership interest and have the ability to exercise significant influence, but not control, over the investee are accounted for using the equity method of accounting. For such investments, our share of the investees' results of operations is included in interest and other, net and our investment balance is included in long-term investments. Investments in entities where we hold less than a 20% ownership interest are generally accounted for using the cost method of accounting, and our share of the investees' results of operations is included in our consolidated statement of income to the extent dividends are received.

Net_Income_per_Share_Tables

Net Income per Share (Tables)	9 Months Ended
	Sep. 30, 2013
Earnings Per Share [Abstract]
Schedule of basic and diluted net income per share
		Three Months Ended September 30,				Nine Months Ended September 30,
		2013		2012		2013		2012
		(In millions, except per share amounts)
	Numerator:
	Net income	$	689	$	597	$	2,006	$	1,859
	Denominator:
	Weighted average shares of common stock - basic	1,295		1,292		1,296		1,291
	Dilutive effect of equity incentive plans	15		22		18		20
	Weighted average shares of common stock - diluted	1,310		1,314		1,314		1,311
	Net income per share:
	Basic	$	0.53	$	0.46	$	1.55	$	1.44
	Diluted	$	0.53	$	0.45	$	1.53	$	1.42
	Common stock equivalents excluded from income per diluted share because their effect would have been anti-dilutive	2		3		2		6

Goodwill_and_Intangible_Assets1

Goodwill and Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2013
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of goodwill balances and adjustments by reportable segment	The following table presents goodwill balances and adjustments to those balances for each of our reportable segments during the nine months ended September 30, 2013:
		December 31,		Goodwill			Adjustments			September 30,
		2012		Acquired						2013
		(In millions)
	Reportable segments:
	Marketplaces	$	4,732	$	45		$	(19	)	$	4,758
	Payments	2,519		4			(1		)	2,522
	Enterprise	1,239		—			—			1,239
	Corporate and other	47		—			—			47
		$	8,537	$	49		$	(20	)	$	8,566
Schedule of identifiable intangible assets	The components of identifiable intangible assets are as follows:
		September 30, 2013										December 31, 2012
		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount			Weighted Average Useful Life (Years)		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Weighted Average Useful Life (Years)
		(In millions, except years)
	Intangible assets:
	Customer lists and user base	$	1,648	$	(1,159	)	$	489		5		$	1,644	$	(991	)	$	653	5
	Trademarks and trade names	771		(645		)	126			5		743		(569		)	174		5
	Developed technologies	538		(378		)	160			4		525		(322		)	203		4
	All other	263		(175		)	88			4		252		(154		)	98		4
		$	3,220	$	(2,357	)	$	863				$	3,164	$	(2,036	)	$	1,128

Segments_Tables

Segments (Tables)	9 Months Ended
	Sep. 30, 2013
Segment Reporting [Abstract]
Schedule of financial performance of operating segments	The following tables summarize the financial performance of our reportable segments and reconciliation to our consolidated operating results for the periods reflected below (1):
		Three Months Ended September 30,						Nine Months Ended September 30,
		2013			2012			2013			2012
		(In millions)
	Net Revenue
	Marketplaces
	Net transaction revenues	$	1,668		$	1,490		$	4,913		$	4,406
	Marketing services and other revenues	359			316			1,072			942
		2,027			1,806			5,985			5,348
	Payments
	Net transaction revenues	1,493			1,264			4,403			3,715
	Marketing services and other revenues	127			102			389			318
		1,620			1,367			4,792			4,033
	Enterprise
	Net transaction revenues	185			170			565			516
	Marketing services and other revenues	53			57			155			168
		238			226			720			684
	Corporate and other
	Marketing services and other revenues	14			11			40			27
	Elimination of inter-segment net revenue (2)	(7		)	(6		)	(20		)	(13		)
	Total consolidated net revenue	$	3,892		$	3,404		$	11,517		$	10,079
	Operating income (loss)
	Marketplaces	$	789		$	705		$	2,406		$	2,093
	Payments	368			309			1,116			1,004
	Enterprise	12			14			29			47
	Corporate and other	(370		)	(361		)	(1,202		)	(1,129		)
	Total operating income (loss)	$	799		$	667		$	2,349		$	2,015
	(1) Certain amounts may not add due to rounding.
	(2) Represents revenue generated between our reportable segments.

Fair_Value_Measurement_of_Asse1

Fair Value Measurement of Assets and Liabilities (Tables)	9 Months Ended
	Sep. 30, 2013
Fair Value Disclosures [Abstract]
Schedule of fair value of assets and liabilities measured on recurring basis
	Description	Balance as of		Quoted Prices in		Significant Other
		30-Sep-13		Active Markets for		Observable Inputs
				Identical Assets		(Level 2)
				(Level 1)
		(In millions)
	Assets:
	Cash and cash equivalents	$	5,280	$	4,791	$	489
	Short-term investments:
	Restricted cash	14		14		—
	Corporate debt securities	3,697		—		3,697
	Government and agency securities	48		—		48
	Time deposits	120		—		120
	Equity instruments	1,112		1,112		—
	Total short-term investments	4,991		1,126		3,865
	Funds receivable and customer accounts	1,864		—		1,864
	Derivatives	46		—		46
	Long-term investments:
	Corporate debt securities	3,582		—		3,582
	Government and agency securities	281		—		281
	Total long-term investments	3,863		—		3,863
	Total financial assets	$	16,044	$	5,917	$	10,127
	Liabilities:
	Derivatives	$	139	$	—	$	139
	Description	Balance as of		Quoted Prices in		Significant Other
		31-Dec-12		Active Markets for		Observable Inputs
				Identical Assets		(Level 2)
				(Level 1)
		(In millions)
	Assets:
	Cash and cash equivalents	$	6,817	$	5,685	$	1,132
	Short-term investments:
	Restricted cash	15		15		—
	Corporate debt securities	1,153		—		1,153
	Government and agency securities	20		—		20
	Time deposits	765		—		765
	Equity instruments	638		638		—
	Total short-term investments	2,591		653		1,938
	Derivatives	55		—		55
	Long-term investments:
	Corporate debt securities	2,669		—		2,669
	Government and agency securities	42		—		42
	Total long-term investments	2,711		—		2,711
	Total financial assets	$	12,174	$	6,338	$	5,836
	Liabilities:
	Derivatives	$	86	$	—	$	86

Derivative_Instruments_Tables

Derivative Instruments (Tables)	9 Months Ended
	Sep. 30, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Fair value of outstanding derivative instruments	The fair value of our outstanding derivative instruments as of September 30, 2013 and December 31, 2012 was as follows:
		Derivative Assets Reported in Other Current Assets						Derivative Liabilities Reported in Other Current Liabilities
		September 30,			December 31,			September 30,			December 31,
		2013			2012			2013			2012
		(In millions)
	Foreign exchange contracts designated as cash flow hedges	$	16		$	1		$	95		$	56
	Foreign exchange contracts not designated as hedging instruments	30			43			44			30
	Other contracts not designated as hedging instruments	—			11			—			—
	Total fair value of derivative instruments	$	46		$	55		$	139		$	86
Summary of activity of derivative contracts that qualify for hedge accounting and the impact of designated derivative contrqacts on accumulated other comprehensive income	The following table summarizes the activity of derivative contracts that qualify for hedge accounting as of September 30, 2013 and December 31, 2012, and the impact of these derivative contracts on accumulated other comprehensive income for the nine months ended September 30, 2013:
		December 31, 2012			Amount of gain (loss)			Amount of gain (loss)			September 30, 2013
					recognized in other			reclassified from
					comprehensive income			accumulated other
					(effective portion)			comprehensive income
								to net revenue and operating expense
								(effective portion)
		(In millions)
	Foreign exchange contracts designated as cash flow hedges	$	(55	)	$	(23	)	$	1		$	(79	)
	The following table summarizes the activity of derivative contracts that qualify for hedge accounting as of September 30, 2012 and December 31, 2011, and the impact of these derivative contracts on accumulated other comprehensive income for the nine months ended September 30, 2012:
		December 31, 2011			Amount of gain (loss)			Amount of gain (loss)			September 30, 2012
					recognized in other			reclassified from
					comprehensive income			accumulated other
					(effective portion)			comprehensive income
								to net revenue and operating expense
								(effective portion)
		(In millions)
	Foreign exchange contracts designated as cash flow hedges	$	72		$	(30	)	$	60		$	(18	)
Schedule of location in financial statements of recognized gains or losses related to derivative instruments	The following table provides the location in our financial statements of the recognized gains or losses related to our derivative instruments:
		Three Months Ended September 30,						Nine Months Ended September 30,
		2013			2012			2013			2012
		(In millions)
	Foreign exchange contracts designated as cash flow hedges recognized in net revenues	$	6		$	16		$	9		$	42
	Foreign exchange contracts designated as cash flow hedges recognized in operating expenses	(2		)	6			(8		)	15
	Foreign exchange contracts not designated as hedging instruments recognized in interest and other, net	(4		)	(2		)	13			(10		)
	Other contracts not designated as hedging instruments recognized in interest and other, net	—			—			—			4
	Total gain (loss) recognized from derivative contracts in the condensed consolidated statement of income	$	—		$	20		$	14		$	51

Debt_Tables

Debt (Tables)	9 Months Ended
	Sep. 30, 2013
Debt Disclosure [Abstract]
Carrying value of outstanding debt	The following table summarizes the carrying value of our outstanding debt:
		Coupon		Carrying Value as of		Effective		Carrying Value as of		Effective
		Rate		September 30, 2013		Interest Rate		December 31, 2012		Interest Rate
		(In millions, except percentages)
	Long-Term Debt
	Senior notes due 2015	1.625	%	$	599	1.805	%	$	599	1.805	%
	Senior notes due 2015	0.7	%	250		0.82	%	250		0.82	%
	Senior notes due 2017	1.35	%	999		1.456	%	999		1.456	%
	Senior notes due 2020	3.25	%	498		3.389	%	498		3.389	%
	Senior notes due 2022	2.6	%	999		2.678	%	999		2.678	%
	Senior notes due 2042	4	%	743		4.114	%	742		4.114	%
	Total senior notes			4,088				4,087
	Other indebtedness			35				19
	Total long-term debt			$	4,123			$	4,106
	Short-Term Debt
	Senior notes due 2013	0.875	%	$	400	1.078	%	$	400	1.078	%
	Other indebtedness			8				13
	Total short-term debt			408				413
	Total Debt			$	4,531			$	4,519

Stock_Repurchase_Programs_Tabl

Stock Repurchase Programs (Tables)	9 Months Ended
	Sep. 30, 2013
Stock Repurchase Programs [Abstract]
Summary of stock repurchase activity under stock repurchase program	The stock repurchase activity under our stock repurchase program during the nine months ended September 30, 2013 is summarized as follows:
		Shares Repurchased	Average Price per Share		Value of Shares Repurchased		Remaining Amount Authorized
		(In millions, except per share amounts)
	Balance as of January 1, 2013	—	$	51.89	$	17	$	1,983
	Repurchase of shares of common stock	20	54.95		1,088		(1,088		)
	Balance as of September 30, 2013	20	$	54.9	$	1,105	$	895

StockBased_Plans_Tables

Stock-Based Plans (Tables)	9 Months Ended
	Sep. 30, 2013
Stock-Based Plans Disclosure [Abstract]
Schedule of stock option activity	The following table summarizes stock option activity for the nine months ended September 30, 2013:
		Options
		(In millions)
	Outstanding as of January 1, 2013	24
	Granted and assumed	1
	Exercised	(8	)
	Forfeited/expired/canceled	(1	)
	Outstanding as of September 30, 2013	16
Schedule of restricted stock unit activity	The following table summarizes restricted stock unit ("RSU") activity for the nine months ended September 30, 2013:
		Units
		(In millions)
	Outstanding as of January 1, 2013	39
	Awarded and assumed	13
	Vested	(14	)
	Forfeited	(3	)
	Outstanding as of September 30, 2013	35
Schedule of stock-based compensation expense	The impact on our results of operations of recording stock-based compensation expense for the three and nine months ended September 30, 2013 and 2012 was as follows:
		Three Months Ended September 30,							Nine Months Ended September 30,
		2013			2012				2013			2012
		(In millions)
	Cost of net revenues	$	9		$	13			$	45		$	41
	Sales and marketing	38			35				112			99
	Product development	42			34				120			101
	General and administrative	51			40				135			119
	Total stock-based compensation expense	$	140		$	122			$	412		$	360
	Capitalized in product development	$	4		$	5			$	11		$	15
Weighed average assumptions	The following weighted average assumptions were used for the three and nine months ended September 30, 2013 and 2012:
		Three Months Ended September 30,					Nine Months Ended September 30,
		2013		2012			2013			2012
	Risk-free interest rate	0.77	%	0.48	%		0.62	%		0.71	%
	Expected life (in years)	3.9		3.8			4.1			4
	Dividend yield	—	%	—	%		—	%		—	%
	Expected volatility	32	%	40	%		34	%		38	%

Income_Taxes_Tables

Income Taxes (Tables)	9 Months Ended
	Sep. 30, 2013
Income Taxes [Abstract]
Changes in unrecognized tax benefits	The following table reflects changes in unrecognized tax benefits for the nine months ended September 30, 2013:
		(In millions)
	Gross amounts of unrecognized tax benefits as of January 1, 2013	$	340
	Increases related to prior period tax positions	52
	Decreases related to prior period tax positions	(52		)
	Increases related to current period tax positions	24
	Settlements	(4		)
	Gross amounts of unrecognized tax benefits as of September 30, 2013	$	360

Loans_and_Interest_Receivable_1

Loans and Interest Receivable, Net (Tables)	9 Months Ended
	Sep. 30, 2013
Financing Receivables [Abstract]
Allowance for loans and interest receivable	The following table summarizes the activity in the allowance for loans and interest receivable, net of participating interest sold, for the periods indicated:
		Nine Months Ended September 30,
		2013			2012
		(In millions)
	Balance as of January 1	$	101		$	59
	Charge-offs	(161		)	(94		)
	Recoveries	9			7
	Provision	181			115
	Balance as of September 30	$	130		$	87

Accumulated_Other_Comprehensiv1

Accumulated Other Comprehensive Income (Tables)	9 Months Ended
	Sep. 30, 2013
Accumulated Other Comprehensive Income [Abstract]
Changes in accumulated balance of other comprehensive income
		Unrealized Gains (Losses) on Cash Flow Hedges				Unrealized				Foreign		Estimated tax (expense) benefit			Total
						Gains on				Currency
						Investments				Translation
		(In millions)
	Beginning balance	$	56			$	903			$	184	$	(317	)	$	826
	Other comprehensive income before reclassifications	(131		)		243				353		(82		)	383
	Amount of gain (loss) reclassified from accumulated other comprehensive income	4				—				—		—			4
	Net current period other comprehensive income	(135		)		243				353		(82		)	379
	Ending balance	$	(79	)		$	1,146			$	537	$	(399	)	$	1,205
Reclassification out of accumulated other comprehensive income
	Details about Accumulated Other Comprehensive		Amount of Gain (Loss)								Affected Line Item in the Statement of Income
	Income Components		Reclassified from
			Accumulated Other
			Comprehensive
			Income
			Three Months Ended				Nine Months Ended
			30-Sep-13				30-Sep-13
			(In millions)
	Gains (losses) on cash flow hedges - foreign exchange contracts		$	6			$	9			Net Revenues
			(1		)		(2		)		Cost of net revenues
			—				(1		)		Sales and marketing
			(1		)		(4		)		Product development
			—				(1		)		General and administrative
			4				1				Total, before income taxes
			—				—				Provision for income taxes
			4				1				Total, net of income taxes
	Unrealized gains on investments		—				4				Interest and other, net
			—				4				Total, before income taxes
			—				—				Provision for income taxes
			—				4				Total, net of income taxes
	Total reclassifications for the period		$	4			$	5			Total, net of income taxes

The_Company_and_Summary_of_Sig2

The Company and Summary of Significant Accounting Policies (Details)	9 Months Ended
	Sep. 30, 2013
	segments
Company and Summary of Significant Accounting Policies Disclosure [Abstract]
Number of reportable segments	3

Net_Income_per_Share_Details

Net Income per Share (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, except Per Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Numerator:
Net income	$689	$597	$2,006	$1,859
Denominator:
Weighted average shares of common stock - basic	1,295	1,292	1,296	1,291
Dilutive effect of equity incentive plans	15	22	18	20
Weighted average shares of common stock - diluted	1,310	1,314	1,314	1,311
Net income per share:
Basic	$0.53	$0.46	$1.55	$1.44
Diluted	$0.53	$0.45	$1.53	$1.42
Common stock equivalents excluded from income per diluted share because their effect would have been anti-dilutive	2	3	2	6

Business_Combinations_and_Dive1

Business Combinations and Divestitures (Details) (USD $)	9 Months Ended		9 Months Ended			9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013	Dec. 31, 2012	Sep. 26, 2013
	acquisitions		Other	Marketplaces	Marketplaces	Payments	Payments	Payments
				acquisitions		acquisitions		Braintree
Business Acquisition [Line Items]
Number of businesses acquired	4			3		1
Aggregate purchase consideration for acquisitions			$83
Net liabilities			-7
Intangibles			41
Goodwill	8,566	8,537	49	4,758	4,732	2,522	2,519
Estimated acquisition price								$800

Goodwill_and_Intangible_Assets2

Goodwill and Intangible Assets By Reportable Segment (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013
Goodwill
Goodwill	$8,537
Goodwill Acquired	49
Adjustments	-20
Goodwill	8,566
Marketplaces
Goodwill
Goodwill	4,732
Goodwill Acquired	45
Adjustments	-19
Goodwill	4,758
Payments
Goodwill
Goodwill	2,519
Goodwill Acquired	4
Adjustments	-1
Goodwill	2,522
Enterprise
Goodwill
Goodwill	1,239
Goodwill Acquired	0
Adjustments	0
Goodwill	1,239
Corporate and other
Goodwill
Goodwill	47
Goodwill Acquired	0
Adjustments	0
Goodwill	$47

Goodwill_and_Intangible_Assets3

Goodwill and Intangible Assets Intangible Assets (Details) (USD $)	3 Months Ended		9 Months Ended			9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended	9 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2013	Dec. 31, 2012
						Customer Lists and User Base	Customer Lists and User Base	Trademarks and Trade Names	Trademarks and Trade Names	Developed Technology	Developed Technology	All Other	All Other
Intangible Assets:
Gross Carrying Amount	$3,220		$3,220		$3,164	$1,648	$1,644	$771	$743	$538	$525	$263	$252
Accumulated Amortization	-2,357		-2,357		-2,036	-1,159	-991	-645	-569	-378	-322	-175	-154
Weighted-Average Useful Life (Years)						5 years	5 years	5 years	5 years	4 years	4 years	4 years	4 years
Amortization expense	107	110	323	329
Amortization Expense, Fiscal Year Maturity [Abstract]
Remaining 2013	100		100
2014	315		315
2015	252		252
2016	128		128
2017	38		38
Thereafter	30		30
Net Carrying Amount	$863		$863		$1,128	$489	$653	$126	$174	$160	$203	$88	$98

Segments_Details

Segments (Details) (USD $)	3 Months Ended				9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Financial performance of operating segments
Total consolidated net revenue	$3,892	[1]	$3,404	[1]	$11,517	[1]	$10,079	[1]
Operating income (loss)	799	[1]	667	[1]	2,349	[1]	2,015	[1]
Marketplaces
Financial performance of operating segments
Net transaction revenues	1,668	[1]	1,490	[1]	4,913	[1]	4,406	[1]
Marketing services and other revenues	359	[1]	316	[1]	1,072	[1]	942	[1]
Revenue by reportable segment	2,027	[1]	1,806	[1]	5,985	[1]	5,348	[1]
Operating income (loss)	789	[1]	705	[1]	2,406	[1]	2,093	[1]
Payments
Financial performance of operating segments
Net transaction revenues	1,493	[1]	1,264	[1]	4,403	[1]	3,715	[1]
Marketing services and other revenues	127	[1]	102	[1]	389	[1]	318	[1]
Revenue by reportable segment	1,620	[1]	1,367	[1]	4,792	[1]	4,033	[1]
Operating income (loss)	368	[1]	309	[1]	1,116	[1]	1,004	[1]
Enterprise
Financial performance of operating segments
Net transaction revenues	185	[1]	170	[1]	565	[1]	516	[1]
Marketing services and other revenues	53	[1]	57	[1]	155	[1]	168	[1]
Revenue by reportable segment	238	[1]	226	[1]	720	[1]	684	[1]
Operating income (loss)	12	[1]	14	[1]	29	[1]	47	[1]
Corporate and other
Financial performance of operating segments
Marketing services and other revenues	14	[1]	11	[1]	40	[1]	27	[1]
Operating income (loss)	-370	[1]	-361	[1]	-1,202	[1]	-1,129	[1]
Intersegment Eliminations [Member]
Financial performance of operating segments
Revenue by reportable segment	$7	[1],[2]	$6	[1],[2]	$20	[1],[2]	$13	[1],[2]
[1]	Certain amounts may not add due to rounding.
[2]	Represents revenue generated between our reportable segments.

Kynetic_Note_and_Related_Inves1

Kynetic Note and Related Investments (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Jun. 30, 2011	Jun. 30, 2011
			GSI's Licensed Sports Merchandise Business [Member]	Shoprunner and Rue La La [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of line of business divested in conjunction with business acquisition			100.00%	70.00%
Repayment of Kynetic note receivable and sale of RueLaLa and ShopRunner	$485	$0
Gain on Sale of Investments	$75	$0

Fair_Value_Measurement_of_Asse2

Fair Value Measurement of Assets and Liabilities (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Fair Value Disclosure, additional details
Funds receivable and customer accounts	$9,073	$8,094
Long-Term Investment [Member]
Fair Value Disclosure, additional details
Cost and equity method investments included in long-term investments	269	327
Foreign Government Debt Securities [Member] | Short-term Investments [Member]
Fair Value Disclosure, additional details
Funds receivable and customer accounts	1,864
Estimate of Fair Value, Fair Value Disclosure | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Cash and cash equivalents	5,280	6,817
Financial assets	16,044	12,174
Estimate of Fair Value, Fair Value Disclosure | Fair Value, Measurements, Recurring [Member] | Short-term Investments [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Investments	4,991	2,591
Estimate of Fair Value, Fair Value Disclosure | Fair Value, Measurements, Recurring [Member] | Long-Term Investment [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Investments	3,863	2,711
Estimate of Fair Value, Fair Value Disclosure | Fair Value, Measurements, Recurring [Member] | Other Current Assets [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Derivative assets	46	55
Estimate of Fair Value, Fair Value Disclosure | Fair Value, Measurements, Recurring [Member] | Other Current Liabilities [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Derivatives liabilities	139	86
Estimate of Fair Value, Fair Value Disclosure | Fair Value, Measurements, Recurring [Member] | Restricted Cash [Member] | Short-term Investments [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Investments	14	15
Estimate of Fair Value, Fair Value Disclosure | Fair Value, Measurements, Recurring [Member] | Corporate Debt Securities [Member] | Short-term Investments [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Investments	3,697	1,153
Estimate of Fair Value, Fair Value Disclosure | Fair Value, Measurements, Recurring [Member] | Corporate Debt Securities [Member] | Long-Term Investment [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Investments	3,582	2,669
Estimate of Fair Value, Fair Value Disclosure | Fair Value, Measurements, Recurring [Member] | Foreign Government Debt Securities [Member] | Short-term Investments [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Investments	48	20
Estimate of Fair Value, Fair Value Disclosure | Fair Value, Measurements, Recurring [Member] | Foreign Government Debt Securities [Member] | Long-Term Investment [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Investments	281	42
Estimate of Fair Value, Fair Value Disclosure | Fair Value, Measurements, Recurring [Member] | Bank Time Deposits [Member] | Short-term Investments [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Investments	120	765
Estimate of Fair Value, Fair Value Disclosure | Fair Value, Measurements, Recurring [Member] | Equity Securities [Member] | Short-term Investments [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Investments	1,112	638
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Cash and cash equivalents	4,791	5,685
Financial assets	5,917	6,338
Fair Value Disclosure, additional details
Funds receivable and customer accounts	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Measurements, Recurring [Member] | Short-term Investments [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Investments	1,126	653
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Measurements, Recurring [Member] | Long-Term Investment [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Investments	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Measurements, Recurring [Member] | Other Current Assets [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Derivative assets	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Measurements, Recurring [Member] | Other Current Liabilities [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Derivatives liabilities	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Measurements, Recurring [Member] | Restricted Cash [Member] | Short-term Investments [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Investments	14	15
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Measurements, Recurring [Member] | Corporate Debt Securities [Member] | Short-term Investments [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Investments	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Measurements, Recurring [Member] | Corporate Debt Securities [Member] | Long-Term Investment [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Investments	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Measurements, Recurring [Member] | Foreign Government Debt Securities [Member] | Short-term Investments [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Investments	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Measurements, Recurring [Member] | Foreign Government Debt Securities [Member] | Long-Term Investment [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Investments	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Measurements, Recurring [Member] | Bank Time Deposits [Member] | Short-term Investments [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Investments	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Measurements, Recurring [Member] | Equity Securities [Member] | Short-term Investments [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Investments	1,112	638
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Cash and cash equivalents	489	1,132
Financial assets	10,127	5,836
Fair Value Disclosure, additional details
Funds receivable and customer accounts	1,864
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring [Member] | Short-term Investments [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Investments	3,865	1,938
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring [Member] | Long-Term Investment [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Investments	3,863	2,711
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring [Member] | Other Current Assets [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Derivative assets	46	55
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring [Member] | Other Current Liabilities [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Derivatives liabilities	139	86
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring [Member] | Restricted Cash [Member] | Short-term Investments [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Investments	0	0
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring [Member] | Corporate Debt Securities [Member] | Short-term Investments [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Investments	3,697	1,153
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring [Member] | Corporate Debt Securities [Member] | Long-Term Investment [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Investments	3,582	2,669
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring [Member] | Foreign Government Debt Securities [Member] | Short-term Investments [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Investments	48	20
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring [Member] | Foreign Government Debt Securities [Member] | Long-Term Investment [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Investments	281	42
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring [Member] | Bank Time Deposits [Member] | Short-term Investments [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Investments	120	765
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring [Member] | Equity Securities [Member] | Short-term Investments [Member]
Fair Value, Assets Measured on Recurring Basis, Financial Statement Captions [Line Items]
Investments	0	0
Bank Time Deposits [Member]
Fair Value Disclosure, additional details
Held-to-maturity Securities, Current	$6

Derivative_Instruments_Introdu

Derivative Instruments Introduction (Details) (USD $)	Sep. 30, 2013	Sep. 30, 2012
Derivative [Line Items]
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months	$55,000,000
Foreign Exchange Contract [Member]
Derivative [Line Items]
Derivative, Notional Amount	6,300,000,000	5,600,000,000
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Foreign Exchange Contract [Member]
Derivative [Line Items]
Derivative, Notional Amount	$2,900,000,000	$2,200,000,000

Derivative_Instruments_Derivat

Derivative Instruments Derivative Instruments and Hedging Activities, Fair Value of Outstanding Derivatives (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Foreign Exchange Contract [Member]
Fair Value of Derivative Contracts:
Derivative Asset, Fair Value, Amount Offset Against Collateral	$46
Derivative Liability, Fair Value, Amount Offset Against Collateral	46
Other Current Assets [Member]
Fair Value of Derivative Contracts:
Derivative Asset, Fair Value, Gross Asset	46	55
Other Current Assets [Member] | Foreign Exchange Contract [Member]
Fair Value of Derivative Contracts:
Derivative assets	93
Other Current Assets [Member] | Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]
Fair Value of Derivative Contracts:
Derivative Asset, Fair Value, Gross Asset	30	43
Other Current Assets [Member] | Not Designated as Hedging Instrument [Member] | Embedded Derivative Financial Instruments [Member]
Fair Value of Derivative Contracts:
Derivative Asset, Fair Value, Gross Asset	0	11
Other Current Assets [Member] | Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]
Fair Value of Derivative Contracts:
Derivative Asset, Fair Value, Gross Asset	16	1
Other Current Liabilities [Member]
Fair Value of Derivative Contracts:
Derivative Liability, Fair Value, Gross Liability	139	86
Other Current Liabilities [Member] | Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]
Fair Value of Derivative Contracts:
Derivative Liability, Fair Value, Gross Liability	44	30
Other Current Liabilities [Member] | Not Designated as Hedging Instrument [Member] | Embedded Derivative Financial Instruments [Member]
Fair Value of Derivative Contracts:
Derivative Liability, Fair Value, Gross Liability	0	0
Other Current Liabilities [Member] | Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member] | Foreign Exchange Contract [Member]
Fair Value of Derivative Contracts:
Derivative Liability, Fair Value, Gross Liability	$95	$56

Derivative_Instruments_Effect_

Derivative Instruments Effect of Derivative Contracts on Accumulated Other Comprehensive Income (Details) (Designated as Hedging Instrument [Member], Cash Flow Hedging [Member], Foreign Exchange Contract [Member], USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Foreign Exchange Contract [Member]
Effect of Derivative Contracts on Accumulated Other Comprehensive Income:
Accumulated OCI - Foreign exchange contracts designated as cash flow hedges, beginning of period	($55)	$72
Amount of gain (loss) recognized in other comprehensive income (effective portion)	-23	-30
Amount of gain (loss) reclassified from accumulated other comprehensive income to net revenue and operating expense	1	60
Accumulated OCI - Foreign exchange contracts designated as cash flow hedges, end of period	($79)	($18)

Derivative_Instruments_Effect_1

Derivative Instruments Effect of Derivative Contracts on Condensed Consolidated Financial Information (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Derivative Instruments, Gain (Loss)
Gain (loss) recognized from derivative contracts in the consolidated statement of income	$0	$20	$14	$51
Designated as Hedging Instrument [Member] | Net Revenue [Member] | Cash Flow Hedging [Member] | Foreign Exchange Contract [Member]
Derivative Instruments, Gain (Loss)
Gain (loss) recognized from derivative contracts in the consolidated statement of income	6	16	9	42
Designated as Hedging Instrument [Member] | Operating Expense [Member] | Cash Flow Hedging [Member] | Foreign Exchange Contract [Member]
Derivative Instruments, Gain (Loss)
Gain (loss) recognized from derivative contracts in the consolidated statement of income	-2	6	-8	15
Not Designated as Hedging Instrument [Member] | Interest and Other, Net [Member] | Foreign Exchange Contract [Member]
Derivative Instruments, Gain (Loss)
Gain (loss) recognized from derivative contracts in the consolidated statement of income	-4	-2	13	-10
Not Designated as Hedging Instrument [Member] | Interest and Other, Net [Member] | Embedded Derivative Financial Instruments [Member]
Derivative Instruments, Gain (Loss)
Gain (loss) recognized from derivative contracts in the consolidated statement of income	$0	$0	$0	$4

Debt_Details

Debt (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Long-term Debt
Other indebtedness	$35,000,000		$35,000,000		$19,000,000
Long-term debt	4,123,000,000		4,123,000,000		4,106,000,000
Short-term Debt
Other indebtedness	8,000,000		8,000,000		13,000,000
Total short-term debt	408,000,000		408,000,000		413,000,000
Total debt	4,531,000,000		4,531,000,000		4,519,000,000
Other Indebtedness
Total present value of future minimum capital lease payments	7,000,000		7,000,000
Capital lease obligation, interest included in payments	1,000,000		1,000,000
Commercial Paper [Member]
Commercial Paper
Commercial paper program amount	2,000,000,000		2,000,000,000
Maximum days to maturity of debt instruments			397 days
Commercial Paper [Member] | Notes 2013 [Member]
Long-term Debt
Coupon Rate	0.88%		0.88%
Effective Interest Rate	1.08%		1.08%		1.08%
Short-term Debt
Short-term debt	400,000,000		400,000,000		400,000,000
Line of Credit [Member]
Credit Agreement [Abstract]
Maximum borrowing capacity	3,000,000,000		3,000,000,000
Capacity reserved	2,000,000,000		2,000,000,000
Remaining borrowing capacity	1,000,000,000		1,000,000,000
Amount outstanding	0		0
Letters of credit outstanding	0		0
Unsecured Debt [Member]
Long-term Debt
Long-term debt	4,088,000,000		4,088,000,000		4,087,000,000
Senior Notes
Interest expense	26,000,000	21,000,000	79,000,000	37,000,000
Estimated fair value of notes included in long-term debt	4,000,000,000		4,000,000,000
Unsecured Debt [Member] | Notes 2015 - October [Member]
Long-term Debt
Coupon Rate	1.63%		1.63%
Long-term debt	599,000,000		599,000,000		599,000,000
Effective Interest Rate	1.81%		1.81%		1.81%
Unsecured Debt [Member] | Notes 2015 - July [Member]
Long-term Debt
Coupon Rate	0.70%		0.70%
Long-term debt	250,000,000		250,000,000		250,000,000
Effective Interest Rate	0.82%		0.82%		0.82%
Unsecured Debt [Member] | Notes 2017 [Member]
Long-term Debt
Coupon Rate	1.35%		1.35%
Long-term debt	999,000,000		999,000,000		999,000,000
Effective Interest Rate	1.46%		1.46%		1.46%
Unsecured Debt [Member] | Notes 2020 - October [Member]
Long-term Debt
Coupon Rate	3.25%		3.25%
Long-term debt	498,000,000		498,000,000		498,000,000
Effective Interest Rate	3.39%		3.39%		3.39%
Unsecured Debt [Member] | Notes 2022 [Member]
Long-term Debt
Coupon Rate	2.60%		2.60%
Long-term debt	999,000,000		999,000,000		999,000,000
Effective Interest Rate	2.68%		2.68%		2.68%
Unsecured Debt [Member] | Notes 2042 [Member]
Long-term Debt
Coupon Rate	4.00%		4.00%
Long-term debt	$743,000,000		$743,000,000		$742,000,000
Effective Interest Rate	4.11%		4.11%		4.11%
Overdraft Facilities [Member]
Other Indebtedness
Interest rate, minimum			8.00%
Interest rate, maximum			11.00%
Capital Lease Obligations [Member]
Other Indebtedness
Interest rate, minimum			3.00%
Interest rate, maximum			7.00%
Mortgages [Member]
Long-term Debt
Coupon Rate	6.30%		6.30%

Commitments_and_Contingencies_

Commitments and Contingencies Schedule of Commitments and Off-Balance Sheet Arrangements (Details) (USD $)	9 Months Ended
In Billions, unless otherwise specified	Sep. 30, 2013
	arrangements
Commitments Details
Number of cash pooling arrangements	2
Pooling arrangement, cash withdrawals	$3.10
Pooling arrangement, aggregate cash deposits	3.1
Unused lines of Credit [Member]
Commitments
Unused commitment to extend credit	$15

Commitments_and_Contingencies_1

Commitments and Contingencies Loss Contingencies (Details)

12 Months Ended

1 Months Ended

12 Months Ended

1 Months Ended

3 Months Ended

1 Months Ended

3 Months Ended

Dec. 31, 2012

Jun. 30, 2008

Sep. 30, 2010

Nov. 30, 2009

Dec. 31, 2012

Dec. 31, 2012

Sep. 30, 2012

Sep. 30, 2013

Jan. 28, 2013

Jan. 31, 2013

Sep. 30, 2013

Sep. 30, 2013

Users

June 2008, Paris France, Court of Commerce Ruling [Member]

September 2010, Paris France, Court Of Appeal Ruling [Member]

November 2009, Paris France, Court of Commerce Ruling [Member]

September 2009, Seoul Korea District Court, Trial [Member]

January 2010, Seoul Korea High Court [Member]

September 2012, Seoul Korea High Court [Member]

January 2013, Seoul High Court [Member]

January 2013, Seoul Western District Court [Member]

January 2013, Seoul Western District Court [Member]

Litigation in Appeal [Member]

Litigation in Appeal [Member]

EUR (€)

EUR (€)

EUR (€)

USD ($)

Users

lawsuits

Plaintiffs

lawsuits

lawsuits

January 2013, Seoul High Court [Member]

Korean Supreme Court [Member]

Plaintiffs

Users

Plaintiffs

Users

Users

Plaintiffs

Litigation and Other Legal Matters

Damages awarded

€ 38,600,000

€ 5,700,000

€ 1,700,000

Daily fines, enforceable

100,000

2,500

Approximate number of users, Korean Subsidiary IAC

20,000,000

Approximate number of users sueing Korean Subsidiary IAC

149,000

34,000

55

33,795

2,291

33,522

Number of representative suits in trial

3

18

2

2,284

11

Number of users with cases in review

33,525

Consolation money per user, Korean Court precedent

$200

Stock_Repurchase_Programs_Deta

Stock Repurchase Programs (Details) (USD $)	9 Months Ended		12 Months Ended	9 Months Ended	1 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012	Sep. 30, 2013	Jun. 30, 2012
				Stock Repurchase Programs, Combined [Member]	Stock Repurchase Program 2012 [Member]
Equity, Class of Treasury Stock [Line Items]
Treasury shares retired				0
Amount authorized under stock repurchase program					$2,000,000,000
Shares Repurchased [Roll Forward]
Shares repurchased, beginning balance	0
Shares repurchased				20,000,000
Shares repurchased, ending balance	20,000,000		0
Treasury stock acquired under stock repurchase program, average price per share	$54.90		$51.89	$54.95
Stock Repurchased Value [Roll Forward]
Treasury Stock Value of Shares Repurchased	17,000,000
Repurchase of common stock				1,088,000,000
Treasury Stock Value of Shares Repurchased	1,105,000,000		17,000,000
Stock Repurchase Remaining Authorized Amount [Roll Forward]
Stock Repurchase remaining amount authorized, beginning balance	895,000,000		1,983,000,000
Repurchases of common stock	-1,088,000,000	-642,000,000		-1,088,000,000
Stock Repurchase remaining amount authorized, ending balance	$895,000,000		$1,983,000,000

StockBased_Plans_Stock_Option_

Stock-Based Plans Stock Option Activity (Details) (Stock Options [Member], USD $)	9 Months Ended
In Millions, except Per Share data, unless otherwise specified	Sep. 30, 2013
Stock Options [Member]
Stock Option Activity
Stock options outstanding, beginning of period	24
Granted and assumed	1
Exercised	-8
Forfeited/expired/cancelled	-1
Stock options outstanding, end of period	16
Weighted average exercise price of stock options granted, during period	$55.68
Weighted average grant date fair value of options granted, during period	$15.47

StockBased_Plans_Restricted_St

Stock-Based Plans Restricted Stock Units (Details) (Restricted Stock Units (RSUs) [Member], USD $)	9 Months Ended
In Millions, except Per Share data, unless otherwise specified	Sep. 30, 2013
Restricted Stock Units (RSUs) [Member]
Restricted Stock Unit Activity
Restricted stock units outstanding, beginning of period	39
Awarded and assumed	13
Vested	-14
Forfeited	-3
Restricted stock units outstanding, end of period	35
Weighted average grant date fair value for restricted stock units awarded, during period	$55.50

StockBased_Plans_StockBased_Co

Stock-Based Plans Stock-Based Compensation Expense (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	$140	$122	$412	$360
Capitalized in product development	4	5	11	15
Cost of Sales [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	9	13	45	41
Selling and Marketing Expense [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	38	35	112	99
Product Development Expense [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	42	34	120	101
General and Administrative Expense [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	$51	$40	$135	$119

StockBased_Plans_Valuation_Ass

Stock-Based Plans Valuation Assumptions (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Weighted Average Assumptions [Abstract]
Risk-free interest rates	0.77%	0.48%	0.62%	0.71%
Expected lives (in years)	3 years 10 months 22 days	3 years 9 months 1 day	4 years 1 month 6 days	4 years
Dividend yield	0.00%	0.00%	0.00%	0.00%
Expected volatility	32.00%	40.00%	34.00%	38.00%

Income_Taxes_Details

Income Taxes (Details) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Changes in unrecognized tax benefits
Gross amounts of unrecognized tax benefits, beginning of period	$340
Increases related to prior period tax positions	52
Decreases related to prior period tax positions	-52
Increases related to current period tax positions	24
Settlements	-4
Gross amounts of unrecognized tax benefits, end of period	360
Accrued interest and penalties	$67	$117

Loans_and_Interest_Receivable_2

Loans and Interest Receivable, Net (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
	Credit_score		Credit_score		Credit_score
Financing Receivable, Allowance for Credit Losses [Line Items]
Purchased consumer receivables	$1,009,000,000	$775,000,000	$2,800,000,000	$2,100,000,000
Loans and Leases Receivable, Gross, Consumer	2,600,000,000		2,600,000,000
Weighted average consumer FICO score	685		685		689
Percentage of loans and interest receivable, prime	53.70%		53.70%		55.80%
Consumer FICO credit score, at prime	680		680		680
Percentage of loans and interest receivable, current	89.00%		89.00%		90.00%
Consumer Receivables, Participation Interest Sold, Value	17,000,000		17,000,000
Consumer Receivables, Participation Interest Sold, Percentage	0.66%		0.66%
Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Balance at beginning of period			101,000,000	59,000,000
Charge-offs			-161,000,000	-94,000,000
Recoveries			9,000,000	7,000,000
Provision			181,000,000	115,000,000
Balance at end of period	$130,000,000	$87,000,000	$130,000,000	$87,000,000

Restructuring_Details

Restructuring (Details) (Global Restructuring Plan 2012 [Member], USD $)	3 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2012	Sep. 30, 2013
	positions	General and Administrative Expense [Member]
	employees
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Number of Positions Eliminated	600
Restructuring and Related Cost, Expected Number of Contractor and Other Positions Eliminated	300
Restructuring and Related Cost, Cost Incurred to Date		$26
Restructuring Reserve, Accrual Adjustment		($4)

Restructuring_Restructuring_Re

Restructuring Restructuring Reserve (Details) (Global Restructuring Plan 2012 [Member], USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013
Global Restructuring Plan 2012 [Member]
Restructuring Reserve [Roll Forward]
Accrued liability, beginning of period	$20
Payments	-10
Translation and other adjustment	-7
Accrued liability, end of period	$3

Accumulated_Other_Comprehensiv2

Accumulated Other Comprehensive Income (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Accumulated Other Comprehensive Income (Loss), Tax [Roll Forward]
Accumulated other comprehensive income (loss) tax provision (benefit), beginning balance	($317)		($225)
Other comprehensive income before reclassifications, tax	-82		-174
Amounts reclassified from accumulated other comprehensive income, tax	0		0
Net current period other comprehensive income, tax	-82		-174
Accumulated other comprehensive income (loss) tax provision (benefit), ending balance	-399		-399
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss), net of tax, beginning balance	826		856
Other comprehensive income before reclassifications	383		354
Amounts reclassified from other comprehensive income	4		5
Other comprehensive income (loss), net tax	379	185	349	100
Accumulated other comprehensive income (loss), net of tax, ending balance	1,205		1,205
Unrealized Gains (Losses) on Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss), Before Tax [Roll Forward]
Accumulated other comprehensive income (loss), before tax, beginning balance	56		-55
Other comprehensive income, before reclassifications, before tax	-131		-23
Amounts reclassified from accumulated other comprehensive income, before tax	4		1
Net current period other comprehensive income , before tax	-135		-24
Accumulated other comprehensive income (loss), before tax, ending balance	-79		-79
Unrealized Gains on Investments
Accumulated Other Comprehensive Income (Loss), Before Tax [Roll Forward]
Accumulated other comprehensive income (loss), before tax, beginning balance	903		687
Other comprehensive income, before reclassifications, before tax	243		463
Amounts reclassified from accumulated other comprehensive income, before tax	0		4
Net current period other comprehensive income , before tax	243		459
Accumulated other comprehensive income (loss), before tax, ending balance	1,146		1,146
Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss), Before Tax [Roll Forward]
Accumulated other comprehensive income (loss), before tax, beginning balance	184		449
Other comprehensive income, before reclassifications, before tax	353		88
Amounts reclassified from accumulated other comprehensive income, before tax	0		0
Net current period other comprehensive income , before tax	353		88
Accumulated other comprehensive income (loss), before tax, ending balance	$537		$537

Accumulated_Other_Comprehensiv3

Accumulated Other Comprehensive Income Reclassification out of Accumulated Other Comprehensive Income (Loss) (Details) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of Revenue	($1,224)	($1,022)	($3,587)	($2,992)
Sales and marketing	-755	-726	-2,223	-2,120
Product development	-433	-389	-1,318	-1,157
General and administrative	-415	-369	-1,242	-1,131
Interest and other, net	74	5	89	74
Provision for income taxes	184	75	432	348
Net income	689	597	2,006	1,859
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net income	4		5
Unrealized Gains (Losses) on Cash Flow Hedges | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Revenue by reportable segment	6		9
Cost of Revenue	-1		-2
Sales and marketing	0		-1
Product development	-1		-4
General and administrative	0		-1
Income (loss) before taxes	4		1
Provision for income taxes	0		0
Net income	4		1
Unrealized Gains on Investments | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income (loss) before taxes	0		4
Interest and other, net	0		4
Provision for income taxes	0		0
Net income	$0		$4