The charge against earnings in the period, comprised of costs associated with restructuring activities not otherwise specified in the taxonomy pursuant to a duly authorized plan, excluding a discontinued operation as defined by generally accepted accounting principles. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, but excludes costs associated with the retirement of a long-lived asset and severance costs associated with established compensation plans.

Amount of any reversal and other adjustment made during the period to the amount of a previously accrued liability for a specified type of restructuring cost, excluding adjustments for costs incurred during the period, costs settled during the period, and foreign currency translation adjustments.

+ References+ Details

Special Charges (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended	3 Months Ended
	Jun. 30, 2010	Sep. 30, 2011	Jun. 30, 2011 2011 Actions [Member]	Mar. 31, 2011 2011 Actions [Member]	Sep. 30, 2010 2010 Actions [Member]	Mar. 31, 2010 2010 Actions [Member]	Mar. 31, 2009 2009 Actions [Member]
Restructuring and related cost, number of positions eliminated					100	160	450
Number of aircrafts disposed from aviation assets					2
Charges related to severance and other benefits				$ 2.6	$ 4.3	$ 5.0	$ 11.9
Benefits recorded related to net reversal of severance		2.6	1.2
Additional charges							4.2
Asset impairment	$ 0				$ 3.9		$ 4.4