Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Cash Flows from Operating Activities:
Net Income	$ 1,192.2	$ 1,246.7	$ 1,203.4
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	168.3	177.7	181.8
Amortization of intangible assets	113.8	115.2	109.3
Amortization of deferred gain on interest rate swaps	(12.9)	(15.4)	(9.2)
Share-based compensation	80.2	93.4	99.4
Impact of Tax Act	106.3	0.0	0.0
Other, net	27.5	32.0	55.3
Increase in operating capital	348.5	302.8	559.5
Net Cash Provided By Operating Activities	2,023.9	1,952.4	2,199.5
Cash Flows from Investing Activities:
Capital expenditures	(156.0)	(165.5)	(202.7)
Acquisition of businesses and interests in affiliates, net of cash acquired	(26.3)	(308.8)	(60.3)
Sale (purchase) of investments, net	66.9	(7.3)	(0.5)
Net Cash Used In Investing Activities	(115.4)	(481.6)	(263.5)
Cash Flows from Financing Activities:
Change in short-term debt	(18.1)	(1.2)	(1.1)
Proceeds from borrowings	0.0	1,389.6	0.0
Repayment of debt	0.0	(1,000.0)	0.0
Dividends paid to common shareholders	(515.2)	(505.4)	(496.7)
Repurchases of common stock	(568.4)	(602.2)	(727.5)
Proceeds from stock plans	10.7	26.8	20.1
Acquisition of additional noncontrolling interests	(17.0)	(72.7)	(33.5)
Dividends paid to noncontrolling interest shareholders	(101.7)	(87.2)	(129.4)
Payment of contingent purchase price obligations	(108.4)	(110.5)	(55.3)
Other, net	(24.5)	(35.5)	(32.9)
Net Cash Used In Financing Activities	(1,342.6)	(998.3)	(1,456.3)
Effect of foreign exchange rate changes on cash and cash equivalents	227.9	(75.5)	(262.6)
Net Increase in Cash and Cash Equivalents	793.8	397.0	217.1
Cash and Cash Equivalents at the Beginning of Year	3,002.2	2,605.2	2,388.1
Cash and Cash Equivalents at the End of Year	$ 3,796.0	$ 3,002.2	$ 2,605.2