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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.