Segment Information Level 3 (Tables)
 12 Months Ended
Dec. 31, 2014
Segment Information [Abstract]  
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]
Net Sales(1):
 
Year Ended December 31,
 
2014

2013
 
2012
United States
$
2,189

 
$
2,109

 
$
2,005

Netherlands
856

 
887

 
902

Germany
282

 
280

 
298

Canada
429

 
357

 
336

Other international
1,381

 
1,257

 
1,215

Total
$
5,137

 
$
4,890

 
$
4,756
Depreciation and Amortization Expense by Segment [Table Text Block]
 
Year Ended December 31,
 
2014

2013

2012
Epoxy, Phenolic and Coating Resins(2)
$
272


$
258


$
337

Forest Products Resins(3)
251


231


201

Corporate and Other
(73
)

(67
)

(48
)
Total
$
450

 
$
422

 
$
490


 Depreciation and Amortization Expense:
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Total Assets:
 
As of December 31,
 
2014
 
2013
Epoxy, Phenolic and Coating Resins
$
1,529

 
$
1,546

Forest Products Resins
857

 
818

Corporate and Other
286

 
510

Total
$
2,672

 
$
2,874

Segment EBITDA:
 
Year Ended December 31,
 
2014

2013

2012
Epoxy, Phenolic and Coating Resins(2)
$
272


$
258


$
337

Forest Products Resins(3)
251


231


201

Corporate and Other
(73
)

(67
)

(48
)
Total
$
450

 
$
422

 
$
490

Net Sales(1):
 
Year Ended December 31,
 
2014
 
2013
 
2012
Epoxy, Phenolic and Coating Resins
$
3,277

 
$
3,126

 
$
3,022

Forest Products Resins
1,860

 
1,764

 
1,734

Total
$
5,137

 
$
4,890

 
$
4,756
Capital Expenditures by Segment [Table Text Block]
Capital Expenditures(4):
 
Year Ended December 31,
 
2014

2013

2012
Epoxy, Phenolic and Coating Resins
$
94

 
$
86

 
$
89

Forest Products Resins
85

 
52

 
41

Corporate and Other
4

 
7

 
3

Total
$
183

 
$
145

 
$
133
Reconciliation of Segment EBITDA to Net Income [Table Text Block]
Reconciliation of Segment EBITDA to Net (Loss) Income:
 
Year Ended December 31,
 
2014

2013

2012
Segment EBITDA:
 
 
 
 
 
Epoxy, Phenolic and Coating Resins
$
272

 
$
258

 
$
337

Forest Products Resins
251

 
231

 
201

Corporate and Other
(73
)
 
(67
)
 
(48
)
Total
$
450

 
$
422

 
$
490

 
 
 
 
 
 
Reconciliation:
 
 
 
 
 
Items not included in Segment EBITDA:
 
 
 
 
 
Asset impairments
$
(5
)
 
$
(181
)
 
$
(23
)
Business realignment costs
(47
)
 
(21
)
 
(35
)
Integration costs
—

 
(10
)
 
(12
)
Realized and unrealized foreign currency losses
(32
)

(2
)

(3
)
Other
(36
)
 
(35
)
 
(39
)
Total adjustments
(120
)
 
(249
)
 
(112
)
Loss on extinguishment of debt
—

 
(6
)
 
—

Interest expense, net
(308
)
 
(303
)
 
(263
)
Income tax (expense) benefit
(26
)
 
(349
)
 
384

Depreciation and amortization
(144
)
 
(148
)
 
(153
)
Net (loss) income attributable to Hexion Inc.
(148
)
 
(633
)
 
346

Net loss attributable to noncontrolling interest
—


(1
)

—

Net (loss) income
$
(148
)
 
$
(634
)
 
$
346
Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country [Table Text Block]
Long-Lived Assets:
 
As of December 31,
 
2014
 
2013
United States
$
653

 
$
590

Netherlands
155

 
184

Germany
103

 
109

Other international
344

 
358

Total
$
1,255

 
$
1,241