Commitments and Contingent Liabilities (Imprelis) (Narrative) (Details) (Imprelis [Member], USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended	15 Months Ended
	Sep. 30, 2012 plantiffs actions	Sep. 30, 2012 plantiffs actions	Sep. 30, 2012 plantiffs actions
Imprelis [Member]
Product Claims [Line Items]
Individual actions filed	80	80	80
Plaintiffs filed	180	180	180
Product claims	$ 125	$ 440	$ 615
Product claims upper range	700	700	700
Intended recovery from insurance carriers	$ 100	$ 100	$ 100