Asbestos-Related Liabilities (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended
	Jun. 30, 2012 D	Jun. 30, 2012 Claims Pending_Claims	Dec. 31, 2011
Liability for Asbestos and Environmental Claims [Abstract]
Holding period for insulation operations (in days)	90
Liability for asbestos and environmental claims net claims paid		$ 10
Outstanding claims involving maritime workers (in pending claims)		3,100
Inactive claims (in claims)		19,000
Historical percentage of claims post 1964		one-quarter
Accrued asbestos claims and related legal costs		239
Unasserted claims	$ 186
Percentage of claims that do not specify damages			88.00%