Contingencies (Details) $ in Millions	3 Months Ended
	Mar. 31, 2019 USD ($) claim site	Mar. 31, 2018 USD ($) claim	Dec. 31, 2018 USD ($)
Accrual for environmental loss contingencies [Abstract]
Waste disposal sites with potential liability under the Comprehensive Environmental Response, Compensation and Liability Act | site	28
Accrual for indicated environmental liabilities	$ 9		$ 9
Loss Contingency Claims [Roll Forward]
Loss Contingency, Range of Possible Loss, Portion Not Accrued	100
Assets:
Other long-term asbestos-related insurance receivables	313		303
Deferred asbestos-related insurance asset	73		83
Loss Contingency Accrual [Roll Forward]
Beginning asbestos liability	805	$ 828
Claim resolution costs and associated defense costs	(10)	(15)
Ending asbestos liability	$ 795	$ 813
Asbestos Issue [Member]
Loss Contingency Claims [Roll Forward]
Beginning Claims | claim	8,598	9,225
New Claims Received | claim	529	503
Dismissed Claims | claim	(310)	(462)
Settled Claims | claim	(89)	(106)
Ending Claims | claim	8,728	9,160
Company paid in defense and indemnity in advance of insurers reimbursement	$ 584		574
Cash and notes received from insurers	271		271
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid	11	$ 15
Assets:
Other long-term asbestos-related insurance receivables	386		386
Total insurance assets	386		386
Liabilities:
Accounts payable and accrued expenses	49		50
Other non-current liabilities	746		755
Total accrued liabilities	$ 795		$ 805