Commitments and Contingent Liabilities (Details) (Asbestos Related Product Liability [Member], USD $) In Millions, unless otherwise specified	6 Months Ended		12 Months Ended
	Jun. 30, 2012 claims		Dec. 31, 2011 claims
Asbestos Related Product Liability [Member]
Number of claims filed
Pending claims, beginning of period	78,500		83,700
New claims filed	1,050		2,200
Claims settled/dismissed	(5,200)		(7,400)
Pending claims, end of period	74,350		78,500
Payments	$ 4	[1]	$ 23	[1]

[1] Represents amount spent by us and our insurers on asbestos litigation defense and claim resolution