Annual report pursuant to Section 13 and 15(d)

IMPAIRMENTS (Details)

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IMPAIRMENTS (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Impaired Long-Lived Assets Held and Used [Line Items]      
LDD Asset Gross Prior to Impairment     $ 279
Property, plant and equipment, net $ 3,927 $ 3,800  
Impairment of light-duty diesel assets $ 0 $ 0 211 [1],[2]
Impairment of Light-duty diesel assets Held-for-use (After-tax)     133
Engine      
Impaired Long-Lived Assets Held and Used [Line Items]      
Impairment of light-duty diesel assets [2]     202
Components      
Impaired Long-Lived Assets Held and Used [Line Items]      
Impairment of light-duty diesel assets [2]     9
Assets measured prior to impairment      
Impaired Long-Lived Assets Held and Used [Line Items]      
Property, plant and equipment, net [1]     246
Assets measured prior to impairment | Engine      
Impaired Long-Lived Assets Held and Used [Line Items]      
Property, plant and equipment, net [1]     235
Assets measured prior to impairment | Components      
Impaired Long-Lived Assets Held and Used [Line Items]      
Property, plant and equipment, net [1]     11
Assets measured after impairment      
Impaired Long-Lived Assets Held and Used [Line Items]      
Assets, Fair Value After Impairment [1]     35
Assets measured after impairment | Engine      
Impaired Long-Lived Assets Held and Used [Line Items]      
Assets, Fair Value After Impairment [1]     33
Assets measured after impairment | Components      
Impaired Long-Lived Assets Held and Used [Line Items]      
Assets, Fair Value After Impairment [1]     $ 2
[1] Depreciation and amortization as shown on a segment basis excludes the amortization of debt discount and deferred costs that are included in the Consolidated Statements of Income as "Interest expense." The amortization of debt discount and deferred costs were $3 million, $3 million and $3 million for the years ended December 31, 2017, 2016 and 2015, respectively.
[2] See Note 19, "IMPAIRMENT OF LIGHT-DUTY DIESEL ASSETS," for additional information.