Fair Value Measurements (Schedule of Non-recurring Fair Value Measurements Of Long-Lived Assets Held For Sale) (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2012
Cost Reduction Plan [Member]
Long Lived Assets Held-for-sale [Line Items]
Long-lived assets held for sale, Fair Value	$ 2.2	[1]
Long-lived assets held for sale, Total Loss	6.0	[1]
Discontinued Operation Long Lived Asset [Member]
Long Lived Assets Held-for-sale [Line Items]
Long-lived assets held for sale, Fair Value	27.2	[2]
Long-lived assets held for sale, Total Loss	33.5	[2]
Level 1 [Member] | Cost Reduction Plan [Member]
Long Lived Assets Held-for-sale [Line Items]
Long-lived assets held for sale, Fair Value	0	[1]
Level 1 [Member] | Discontinued Operation Long Lived Asset [Member]
Long Lived Assets Held-for-sale [Line Items]
Long-lived assets held for sale, Fair Value	0	[2]
Level 2 [Member] | Cost Reduction Plan [Member]
Long Lived Assets Held-for-sale [Line Items]
Long-lived assets held for sale, Fair Value	0	[1]
Level 2 [Member] | Discontinued Operation Long Lived Asset [Member]
Long Lived Assets Held-for-sale [Line Items]
Long-lived assets held for sale, Fair Value	0	[2]
Level 3 [Member] | Cost Reduction Plan [Member]
Long Lived Assets Held-for-sale [Line Items]
Long-lived assets held for sale, Fair Value	2.2	[1]
Level 3 [Member] | Discontinued Operation Long Lived Asset [Member]
Long Lived Assets Held-for-sale [Line Items]
Long-lived assets held for sale, Fair Value	$ 27.2	[2]

[1] During the second quarter ended 31 March 2012, long-lived assets held for sale were written down to fair value and the loss was included in the cost reduction plan charge. For additional information, see Note 4, Business Restructuring and Cost Reduction Plans. We quantified the fair value of assets held for sale using a market approach, based on prices for other market transactions involving comparable assets and our assessment of value considering our knowledge of the markets.

[2] During the third quarter ended 30 June 2012, the remaining assets of the Homecare business were written down to estimated net realizable value. For additional information, see Note 3, Discontinued Operations. We utilized a market approach to determine the fair value based on our current assessment of the markets for these assets.