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Discontinued Operations (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
restructuring charges, net of reversal, including discontinued operations $ (1) $ 0
Payments to Acquire Businesses and Interest in Affiliates 0 47
Income Tax Expense (Benefit) 21 16
Provision for income taxes 0 1
(Loss) income from discontinued operations, net of tax 2 8
Gain on repurchase of India operations 0 7
HVCC [Member]    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax $ 3 $ 7