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Goodwill and Other Identifiable Intangible Assets (Tables)
 3 Months Ended
Mar. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]  
Carrying Amount of Goodwill Attributable to Each Reportable Segment
The change in the carrying amount of goodwill attributable to each reportable segment for the three months ended March 31, 2013 was as follows:
 
Performance
Coatings
 
Industrial
Coatings
 
Architectural
Coatings –
EMEA
 
Optical
and
Specialty
Materials
 
Commodity
Chemicals
 
Glass
 
Total
 
(Millions)
Balance, Dec. 31, 2012
$
1,173

 
$
512

 
$
970

 
$
48

 
$
6

 
$
52

 
$
2,761

Acquisitions
—

 
1

 
—

 
—

 
—

 
—

 
1

Separation of commodity chemicals (Note 5)
—

 
—

 
—

 
—

 
(6
)
 
—

 
(6
)
Currency
(16
)
 
(11
)
 
(33
)
 
—

 
—

 
(2
)
 
(62
)
Balance, March 31, 2013
$
1,157

 
$
502

 
$
937

 
$
48

 
$
—

 
$
50

 
$
2,694
Identifiable Intangible Assets with Finite Lives
The Company’s identifiable intangible assets with finite lives are being amortized over their estimated useful lives and are detailed below:
 
March 31, 2013
 
December 31, 2012
 
Gross
Carrying
Amount
 
Accumulated
Amortization
 
Net
 
Gross
Carrying
Amount
 
Accumulated
Amortization
 
Net
 
(Millions)
Acquired technology
$
508

 
$
(342
)
 
$
166

 
$
516

 
$
(342
)
 
$
174

Customer-related intangibles
962

 
(476
)
 
486

 
1,010

 
(491
)
 
519

Tradenames
114

 
(54
)
 
60

 
120

 
(57
)
 
63

Other
30

 
(25
)
 
5

 
34

 
(29
)
 
5

Balance
$
1,614

 
$
(897
)
 
$
717

 
$
1,680

 
$
(919
)
 
$
761