Incomes Taxes (DTA and DTL) (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Deferred tax liabilities
Intangibles	$ 450	$ 610
Property, net	195	185
LIFO inventory	37	38
Other	262	177
Total deferred tax liabilities	944	1,010
Deferred tax assets
U.S. general business credit carryforwards, including Energy Tax Credits	875	927
Pensions	144	220
Loss carryforwards	1,051	880
Postretirement obligations	99	109
Research and development capitalization	135	129
Employee payroll and benefits	98	56
Accrued expenses	154	170
Product warranty accrual	55	55
Receivable and inventory allowances	85	56
Other	536	521
Total deferred tax assets	3,232	3,123
Valuation allowances for deferred tax assets	(348)	(178)
Deferred tax assets, net of valuation allowances	2,884	2,945
Net deferred tax assets	$ 1,940	$ 1,935