Supplemental Balance Sheet Information (Components of Prepaid Expenses and Other) (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Components Of Prepaid Expenses And Other Current Assets [Line Items]
Deferred tax assets	$ 237.0	$ 273.5
Prepaid taxes and tax refunds receivable	150.0	141.1
Prepaid brochure costs, paper and other literature	107.0	111.8
Receivables other than trade	90.2	131.6
Short-term investments	34.2	16.5
Healthcare trust assets	7.6	26.9
Interest-rate swap agreements, including interest (Notes 12 and 13)	0	19.5
Other	107.5	106.1
Prepaid expenses and other	$ 733.5	$ 827.0