Discontinued Operations Reconciliation of Major Classes of Profit or Loss of Discontinued Operations (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Income (loss) from discontinued operations, net of tax $ (75) $ 15
Income (loss) from discontinued operations attributable to Delphi (79) 10
Thermal Systems    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Net sales 373 379
Cost of Sales 343 344
Selling, general and administrative 11 13
Amortization 1 2
Restructuring 1 1
Other income and (expense) items that are not major 0 1
Income from discontinued operations before income taxes and equity income 17 20
Income tax expense on discontinued operations (4) (6)
Equity income from discontinued operations, net of tax 0 1
Impairment loss (88) 0
Income (loss) from discontinued operations, net of tax (75) 15
Income from discontinued operations attributable to noncontrolling interests 4 5
Income (loss) from discontinued operations attributable to Delphi (79) 10
Income (loss) from discontinued operations before income taxes attributable to Delphi (76) 15
SDAAC | Thermal Systems    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Income tax expense of Discontinued Operations attributable to noncontrolling interest $ 1 $ 1