Supplemental Balance Sheet Information (Components of Other Assets) (Details) (USD $) In Millions	Jun. 30, 2011	Dec. 31, 2010
Schedule Of Other Assets [Line Items]
Deferred tax assets	$ 583.9	$ 544.3
Investments	47.0	47.6
Deferred software	158.6	140.6
Interest-rate swap agreements (Note 11 and 12)	132.3	124.8
Other	172.5	161.3
Other assets	$ 1,094.3	$ 1,018.6

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The carrying amount of capitalized computer software costs net of accumulated amortization as of the balance sheet date.

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Carrying amount as of the balance sheet date of the assets arising from derivative contracts and hedging activities, which are expected to be converted into cash or otherwise disposed of after a year or beyond the normal operating cycle, if longer.

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