Consolidated Statements of Equity - USD ($) shares in Millions, $ in Millions	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Shareholders’ Equity	Noncontrolling Interests
Balance, shares at Dec. 31, 2014		397.2
Balance at Dec. 31, 2014	$ 3,321.3	$ 59.6	$ 818.6	$ 9,576.9	$ (618.2)	$ (6,986.9)	$ 2,850.0	$ 471.3
Net Income	1,203.4			1,093.9			1,093.9	109.5
Other comprehensive income (loss)	(426.0)				(397.2)		(397.2)	(28.8)
Dividends to noncontrolling interests	(129.4)							(129.4)
Acquisition of noncontrolling interests	(63.0)		(38.8)				(38.8)	(24.2)
Increase in noncontrolling interests from business combinations	38.6							38.6
Change in temporary equity	11.9		11.9				11.9
Common stock dividends declared	(492.6)			(492.6)			(492.6)
Share-based compensation	99.4		99.4				99.4
Stock issued, share-based compensation	53.3		(31.2)			84.5	53.3
Common stock repurchased	(727.5)					(727.5)	(727.5)
Balance at Dec. 31, 2015	2,889.4	$ 59.6	859.9	10,178.2	(1,015.4)	(7,629.9)	2,452.4	437.0
Balance, shares at Dec. 31, 2015		397.2
Net Income	1,246.7			1,148.6			1,148.6	98.1
Other comprehensive income (loss)	(348.2)				(340.6)		(340.6)	(7.6)
Dividends to noncontrolling interests	(87.2)							(87.2)
Acquisition of noncontrolling interests	(103.7)		(87.7)				(87.7)	(16.0)
Increase in noncontrolling interests from business combinations	73.3							73.3
Change in temporary equity	(33.0)		(33.0)				(33.0)
Common stock dividends declared	(513.9)			(513.9)			(513.9)
Share-based compensation	93.4		93.4				93.4
Stock issued, share-based compensation	45.0		(34.3)			79.3	45.0
Common stock repurchased	(602.2)					(602.2)	(602.2)
Treasury stock retired	0.0	$ (15.0)		(5,135.7)		5,150.7	0.0
Treasury stock retired, shares		(100.0)
Balance at Dec. 31, 2016	2,659.6	$ 44.6	798.3	5,677.2	(1,356.0)	(3,002.1)	2,162.0	497.6
Balance, shares at Dec. 31, 2016		297.2
Cumulative effect of accounting changes	(27.1)		4.5	(31.6)			(27.1)	0.0
Net Income	1,192.2			1,088.4			1,088.4	103.8
Other comprehensive income (loss)	418.6				393.0		393.0	25.6
Dividends to noncontrolling interests	(101.7)							(101.7)
Acquisition of noncontrolling interests	(33.9)		(25.7)				(25.7)	(8.2)
Increase in noncontrolling interests from business combinations	20.0							20.0
Change in temporary equity	27.1		27.1				27.1
Common stock dividends declared	(523.4)			(523.4)			(523.4)
Share-based compensation	80.2		80.2				80.2
Stock issued, share-based compensation	9.0		(56.1)			65.1	9.0
Common stock repurchased	(568.4)					(568.4)	(568.4)
Balance at Dec. 31, 2017	$ 3,152.2	$ 44.6	$ 828.3	$ 6,210.6	$ (963.0)	$ (3,505.4)	$ 2,615.1	$ 537.1
Balance, shares at Dec. 31, 2017		297.2