Contingencies And Commitments (Environmental Matters) (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		1 Months Ended		3 Months Ended	12 Months Ended		12 Months Ended			3 Months Ended
	Mar. 31, 2012	Dec. 31, 2011	Jun. 30, 2003 Massena West, NY [Member]	Nov. 30, 2008 Grasse River [Member]	Mar. 31, 2012 Grasse River [Member]	Dec. 31, 2010 Grasse River [Member]	Mar. 24, 2010 Grasse River [Member]	Dec. 31, 2005 East St. Louis, IL [Member]	Dec. 31, 2009 Fusina [Member]	Dec. 31, 2009 Portovesme [Member]	Mar. 31, 2012 Other Sites [Member]	Mar. 31, 2012 Recurring Costs Of Managing Hazardous Substances And Environmental Programs [Member]	Mar. 31, 2012 Maximum [Member]	Mar. 31, 2012 Minimum [Member]
Loss Contingencies [Line Items]
Number of cleanup locations	more than 100
Remediation reserve balance	$ 344	$ 347
Remediation reserve balance, classified as a current liability	56	58
Remediation reserve increase				40	1	2		15	12	3	2
Remediation reserve adjustment							17
Period of time between potential phenomenon occurrences, years			10
Payments related to remediation expenses applied against the reserve	6
Percentage of cost of goods sold												2.00%
Recommended capping remedy range													100	20
Increase in reserves due to effects of foreign currency translation	$ 1