v3.10.0.1
Revenue
 6 Months Ended
Jun. 30, 2018
Revenue from Contract with Customer [Abstract]  
Revenue
Revenue
The following table disaggregates our revenue by major source for revenue generating segments:
 
Three Months Ended June 30, 2018
 
GMNA
 
GMI
 
Corporate
 
Total Automotive
 
GM Financial
 
Eliminations
 
Total
Vehicle, parts and accessories
$
26,874


$
4,489


$
1


$
31,364

 
$
—


$
(18
)

$
31,346

Used vehicles
769

 
68

 
—

 
837

 
—

 
(16
)
 
821

Services and other
858


201


49


1,108

 
—


—


1,108

Automotive net sales and revenue
28,501


4,758


50


33,309

 
—


(34
)

33,275

Leased vehicle income
—

 
—

 
—

 
—

 
2,497

 
—

 
2,497

Finance charge income
—

 
—

 
—

 
—

 
884

 
(1
)
 
883

Other income
—

 
—

 
—

 
—

 
107

 
(2
)
 
105

GM Financial net sales and revenue
—


—


—


—

 
3,488


(3
)

3,485

Net sales and revenue
$
28,501


$
4,758


$
50


$
33,309

 
$
3,488


$
(37
)

$
36,760

 
Six Months Ended June 30, 2018
 
GMNA
 
GMI
 
Corporate
 
Total Automotive
 
GM Financial
 
Eliminations
 
Total
Vehicle, parts and accessories
$
52,756


$
9,094


$
10


$
61,860

 
$
—


$
(25
)

$
61,835

Used vehicles
1,924


115


—


2,039

 
—


(33
)

2,006

Services and other
1,639


397


89


2,125

 
—


—


2,125

Automotive net sales and revenue
56,319


9,606


99


66,024

 
—


(58
)

65,966

Leased vehicle income
—


—


—


—

 
4,944


—


4,944

Finance charge income
—


—


—


—

 
1,750


(3
)

1,747

Other income
—


—


—


—

 
205


(3
)

202

GM Financial net sales and revenue
—


—


—


—

 
6,899


(6
)

6,893

Net sales and revenue
$
56,319


$
9,606


$
99


$
66,024

 
$
6,899


$
(64
)

$
72,859



Revenue is measured as the amount of consideration we expect to receive in exchange for transferring goods or providing services. Adjustments to sales incentives for previously recognized sales decreased revenue by $482 million and $628 million during the three and six months ended June 30, 2018.

Deferred revenue consists primarily of maintenance, extended warranty and other service contracts. We recognized revenue of $402 million and $785 million related to previously deferred revenue during the three and six months ended June 30, 2018. We expect to recognize revenue of $845 million in the six months ending December 31, 2018 and $885 million, $450 million and $569 million in the years ending December 31, 2019, 2020 and thereafter related to deferred revenue as of June 30, 2018.