CONDENSED CONSOLIDATED BALANCE SHEET (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
CURRENT ASSETS
Cash and cash equivalents	$ 168	$ 112
Receivables, net	916	678
Inventories	793	710
Other current assets	74	74
Total current assets	1,963	1,586
Property, plant and equipment, net	3,314	3,112
Other non-current assets	202	194
TOTAL ASSETS	8,656	7,741
CURRENT LIABILITIES
Accounts and notes payable and other current liabilities	1,180	960
Total current liabilities	1,185	963
Long-term debt, net of current portion	2,539	2,099
Deferred income taxes	65	36
Other liabilities	198	164
Redeemable equity	0	2
OWENS CORNING STOCKHOLDERS' EQUITY
Total Owens Corning stockholders’ equity	4,074	3,849
Noncontrolling interests	40	40
Total equity	4,114	3,889
TOTAL LIABILITIES AND EQUITY	8,656	7,741
Consolidation, Eliminations
CURRENT ASSETS
Cash and cash equivalents	0	0
Receivables, net	0	0
Due from affiliates	(3,126)	(2,612)
Inventories	0	0
Other current assets	0	0
Total current assets	(3,126)	(2,612)
Investment in subsidiaries	(10,650)	(9,398)
Property, plant and equipment, net	0	0
Goodwill and intangible assets, net	(74)	(117)
Other non-current assets	0	0
TOTAL ASSETS	(13,850)	(12,127)
CURRENT LIABILITIES
Accounts and notes payable and other current liabilities	0	0
Due to affiliates	(3,126)	(2,612)
Total current liabilities	(3,126)	(2,612)
Long-term debt, net of current portion	0	0
Deferred income taxes	0	0
Other liabilities	(74)	(117)
Redeemable equity	0	0
OWENS CORNING STOCKHOLDERS' EQUITY
Total Owens Corning stockholders’ equity	(10,650)	(9,398)
Noncontrolling interests	0	0
Total equity	(10,650)	(9,398)
TOTAL LIABILITIES AND EQUITY	(13,850)	(12,127)
Parent Company
CURRENT ASSETS
Cash and cash equivalents	0	0
Receivables, net	0	0
Due from affiliates	0	0
Inventories	0	0
Other current assets	16	24
Total current assets	16	24
Investment in subsidiaries	8,667	7,745
Property, plant and equipment, net	466	470
Goodwill and intangible assets, net	0	0
Other non-current assets	(24)	(23)
TOTAL ASSETS	9,125	8,216
CURRENT LIABILITIES
Accounts and notes payable and other current liabilities	89	75
Due to affiliates	2,350	1,941
Total current liabilities	2,439	2,016
Long-term debt, net of current portion	2,378	2,069
Deferred income taxes	0	0
Other liabilities	234	282
Redeemable equity	0	0
OWENS CORNING STOCKHOLDERS' EQUITY
Total Owens Corning stockholders’ equity	4,074	3,849
Noncontrolling interests	0	0
Total equity	4,074	3,849
TOTAL LIABILITIES AND EQUITY	9,125	8,216
Guarantor Subsidiaries
CURRENT ASSETS
Cash and cash equivalents	8	55
Receivables, net	0	0
Due from affiliates	3,126	2,612
Inventories	439	422
Other current assets	29	29
Total current assets	3,602	3,118
Investment in subsidiaries	1,983	1,653
Property, plant and equipment, net	1,656	1,600
Goodwill and intangible assets, net	2,357	2,197
Other non-current assets	339	424
TOTAL ASSETS	9,937	8,992
CURRENT LIABILITIES
Accounts and notes payable and other current liabilities	870	834
Due to affiliates	0	0
Total current liabilities	870	834
Long-term debt, net of current portion	11	12
Deferred income taxes	0	0
Other liabilities	389	401
Redeemable equity	0	0
OWENS CORNING STOCKHOLDERS' EQUITY
Total Owens Corning stockholders’ equity	8,667	7,745
Noncontrolling interests	0	0
Total equity	8,667	7,745
TOTAL LIABILITIES AND EQUITY	9,937	8,992
Non-Guarantor Subsidiaries
CURRENT ASSETS
Cash and cash equivalents	160	57
Receivables, net	916	678
Due from affiliates	0	0
Inventories	354	288
Other current assets	41	33
Total current assets	1,471	1,056
Investment in subsidiaries	0	0
Property, plant and equipment, net	1,192	1,042
Goodwill and intangible assets, net	597	394
Other non-current assets	184	168
TOTAL ASSETS	3,444	2,660
CURRENT LIABILITIES
Accounts and notes payable and other current liabilities	226	54
Due to affiliates	776	671
Total current liabilities	1,002	725
Long-term debt, net of current portion	150	18
Deferred income taxes	65	36
Other liabilities	204	186
Redeemable equity	0	2
OWENS CORNING STOCKHOLDERS' EQUITY
Total Owens Corning stockholders’ equity	1,983	1,653
Noncontrolling interests	40	40
Total equity	2,023	1,693
TOTAL LIABILITIES AND EQUITY	3,444	2,660
Consolidated G/NG
CURRENT ASSETS
Cash and cash equivalents	168	112
Receivables, net	916	678
Due from affiliates	0	0
Inventories	793	710
Other current assets	86	86
Total current assets	1,963	1,586
Investment in subsidiaries	0	0
Property, plant and equipment, net	3,314	3,112
Goodwill and intangible assets, net	2,880	2,474
Other non-current assets	499	569
TOTAL ASSETS	8,656	7,741
CURRENT LIABILITIES
Accounts and notes payable and other current liabilities	1,185	963
Due to affiliates	0	0
Total current liabilities	1,185	963
Long-term debt, net of current portion	2,539	2,099
Deferred income taxes	65	36
Other liabilities	753	752
Redeemable equity	0	2
OWENS CORNING STOCKHOLDERS' EQUITY
Total Owens Corning stockholders’ equity	4,074	3,849
Noncontrolling interests	40	40
Total equity	4,114	3,889
TOTAL LIABILITIES AND EQUITY	$ 8,656	$ 7,741