Global Cost Reduction Plan (Narrative) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		12 Months Ended
	Jun. 30, 2009	Dec. 31, 2008	Sep. 30, 2009
Global Cost Reduction Plan [Abstract]
Global cost reduction plan	$ 124.0	$ 174.2	$ 298.2	[1]
Global cost reduction plan charge incurred, after-tax amount	84.2	116.1	200.3
Global cost reduction plan charge incurred, per share amount	$ 0.39	$ 0.55	$ 0.94
Severance benefits and pension-related costs associated with workforce reduction			210.0
Number of positions to be eliminated			2,550
Business exit costs			88.2
Environmental charge			$ 16.0

[1] Information about how this charge related to the businesses at the segment level is discussed in Note 5, Global Cost Reduction Plan.