Contingencies - Asbestos (Details)	12 Months Ended
	Dec. 31, 2015 USD ($) item	Dec. 31, 2014 USD ($) item	Dec. 31, 2013 USD ($) item	Dec. 31, 1993 USD ($)
Loss Contingencies [Line Items]
Sale of goods containing asbestos from 1948 to 1958	$ 40,000,000
Approximate number of plaintiffs and claimants asbestos claims pending against the entity
Pending at beginning of year (in number of litigants) | item	2,260	2,620	2,610
Disposed (in number of litigants) | item	1,460	1,830	1,700
Filed (in number of litigants) | item	1,280	1,470	1,710
Pending at end of year (in number of litigants) | item	2,080	2,260	2,620
Analysis of lawsuits pending
Loss contingency, plaintiffs damages, maximum amount	$ 950,000,000
Asbestos related liabilities additional information
Approximate number of claims disposed of to date | item	396,000
Average indemnity payment per claim	$ 9,200
Payments for Asbestos-Related Liabilities	138,000,000	$ 148,000,000	$ 158,000,000
Payments per claim disposed	95,000	81,000	93,000
Asbestos-related liability, total amount accrued, before insurance recoveries	4,900,000,000			$ 975,000,000
Asbestos-related liabilities	817,000,000	939,000,000
Charge for asbestos-related costs	16,000,000	$ 46,000,000	$ 12,000,000
Estimated reasonably possible loss	$ 950,000,000
Period in which significant majority of claims to be received	10 years
Damages unspecified or sufficient to invoke jurisdictional minimum
Analysis of lawsuits pending
Percentage of asbestos plaintiffs, approximate percentage	82.00%
Damages of $15 million or less
Analysis of lawsuits pending
Percentage of asbestos plaintiffs, approximate percentage	11.00%
Loss contingency, plaintiffs damages, maximum amount	$ 15,000,000
Asbestos related liabilities additional information
Estimated reasonably possible loss	$ 15,000,000
Damages greater than $15 million but less than $100 million
Analysis of lawsuits pending
Percentage of asbestos plaintiffs, approximate percentage	7.00%
Loss contingency, plaintiffs damages, minimum amount	$ 15,000,000
Loss contingency, plaintiffs damages, maximum amount	100,000,000
Asbestos related liabilities additional information
Estimated reasonably possible loss	$ 100,000,000