CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE EARNINGS (DETAIL) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Condensed Financial Statements Captions [Line Items]        
NET EARNINGS $ 113 $ 52 $ 224 $ 194
Currency translation adjustment (net of tax) (38) (59) (81) (64)
Pension and other postretirement adjustment (net of tax) 6 4 12 6
Deferred loss on hedging transactions (net of tax) (1) 0 2 (1)
COMPREHENSIVE EARNINGS 80 (3) 157 135
Less: Net earnings attributable to noncontrolling interests 1 0 3 1
COMPREHENSIVE EARNINGS ATTRIBUTABLE TO OWENS CORNING 79 (3) 154 134
Parent Company        
Condensed Financial Statements Captions [Line Items]        
NET EARNINGS 112 52 221 193
Currency translation adjustment (net of tax) (38) (59) (81) (64)
Pension and other postretirement adjustment (net of tax) 6 4 12 6
Deferred loss on hedging transactions (net of tax) (1) 0 2 (1)
COMPREHENSIVE EARNINGS 79 (3) 154 134
Less: Net earnings attributable to noncontrolling interests 0 0 0 0
COMPREHENSIVE EARNINGS ATTRIBUTABLE TO OWENS CORNING 79 (3) 154 134
Guarantor Subsidiaries        
Condensed Financial Statements Captions [Line Items]        
NET EARNINGS 132 82 301 281
Currency translation adjustment (net of tax) 0 0 0 0
Pension and other postretirement adjustment (net of tax) 0 0 0 0
Deferred loss on hedging transactions (net of tax) 0 0 0 0
COMPREHENSIVE EARNINGS 132 82 301 281
Less: Net earnings attributable to noncontrolling interests 0 0 0 0
COMPREHENSIVE EARNINGS ATTRIBUTABLE TO OWENS CORNING 132 82 301 281
Non Guarantor Subsidiaries        
Condensed Financial Statements Captions [Line Items]        
NET EARNINGS 52 13 132 88
Currency translation adjustment (net of tax) 0 0 0 0
Pension and other postretirement adjustment (net of tax) 0 0 0 0
Deferred loss on hedging transactions (net of tax) 0 0 0 0
COMPREHENSIVE EARNINGS 52 13 132 88
Less: Net earnings attributable to noncontrolling interests 1 0 3 1
COMPREHENSIVE EARNINGS ATTRIBUTABLE TO OWENS CORNING 51 13 129 87
Consolidation Eliminations        
Condensed Financial Statements Captions [Line Items]        
NET EARNINGS (183) (95) (430) (368)
Currency translation adjustment (net of tax) 0 0 0 0
Pension and other postretirement adjustment (net of tax) 0 0 0 0
Deferred loss on hedging transactions (net of tax) 0 0 0 0
COMPREHENSIVE EARNINGS (183) (95) (430) (368)
Less: Net earnings attributable to noncontrolling interests 0 0 0 0
COMPREHENSIVE EARNINGS ATTRIBUTABLE TO OWENS CORNING $ (183) $ (95) $ (430) $ (368)