Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Cash Flows from Operating Activities:
Net Income	$ 1,117.5	$ 1,060.4	$ 923.7
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	181.6	182.3	182.2
Amortization of intangible assets	101.1	91.4	70.8
Amortization of deferred gain from termination of interest rate swaps	(7.3)	(2.7)	0
Income from equity method investments, net of dividends received	(0.8)	2.2	(7.2)
Impairment charge on equity method investment	29.2	0	0
Remeasurement gain, equity interest in Clemenger Group	0	(123.4)	0
Remeasurement gain, acquisition of controlling interests in affiliates	(2.1)	(15.1)	(26.0)
Provision for doubtful accounts	11.4	8.1	9.5
Share-based compensation	80.8	74.5	69.3
Excess tax benefit from share-based compensation	(85.3)	(30.4)	(44.6)
Proceeds from discontinuation of interest rate swaps	0	38.8	0
Change in operating capital	25.2	29.2	310.3
Net Cash Provided By Operating Activities	1,451.3	1,315.3	1,488.0
Cash Flows from Investing Activities:
Payments to acquire property and equipment	(226.3)	(185.5)	(153.7)
Payments to acquire businesses and interests in affiliates, net of cash acquired	(132.7)	(403.7)	(152.1)
Proceeds from investments	8.6	14.6	12.1
Net Cash Used In Investing Activities	(350.4)	(574.6)	(293.7)
Cash Flows from Financing Activities:
Proceeds from (repayments of) short-term debt	(3.3)	(43.1)	35.0
Proceeds from borrowings	1,273.2	0	990.1
Repayments of convertible debt	0	(0.1)	(66.5)
Payments of dividends	(397.8)	(269.1)	(229.7)
Payments for repurchase of common stock	(1,136.5)	(849.0)	(1,296.0)
Proceeds from stock plans	219.2	117.5	123.1
Payments for acquisition of additional noncontrolling interests	(32.0)	(38.8)	(32.1)
Payments of dividends to noncontrolling interest shareholders	(98.4)	(101.3)	(81.0)
Payments of contingent purchase price obligations	(32.2)	(19.7)	(8.6)
Excess tax benefit from share-based compensation	85.3	30.4	44.6
Other, net	(97.6)	(32.5)	(16.2)
Net Cash Used In Financing Activities	(220.1)	(1,205.7)	(537.3)
Effect of foreign exchange rate changes on cash and cash equivalents	16.3	(42.5)	44.7
Net Increase (Decrease) in Cash and Cash Equivalents	897.1	(507.5)	701.7
Cash and Cash Equivalents at the Beginning of Year	1,781.2	2,288.7	1,587.0
Cash and Cash Equivalents at the End of Year	$ 2,678.3	$ 1,781.2	$ 2,288.7