Condensed Consolidated Statements of Stockholders' Equity (unaudited) - USD ($) shares in Millions, $ in Millions	Total	Cumulative Effect, Period of Adoption, Adjustment [Member]	Common Stock [Member]	Paid-in Capital [Member]	Retained Earnings [Member]	Retained Earnings [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Treasury Shares [Member]	Noncontrolling Interest [Member]
Balance at Dec. 31, 2018	$ 11,276.1		$ 3.1	$ 8,686.1	$ 9,491.2		$ (187.4)	$ (6,721.7)	$ 4.8
Balance, shares at Dec. 31, 2018			307.9					(103.9)
Net (loss) earnings	810.1				810.9				(0.8)
Other comprehensive income (loss)	(35.8)						(35.8)
Cash dividends declared	(147.7)				(147.7)
Stock compensation plans	182.8			181.1	0.9			$ 0.8
Stock compensation plans, shares			1.6
Balance at Sep. 30, 2019	12,085.5		$ 3.1	8,867.2	10,155.3		(223.2)	$ (6,720.9)	4.0
Balance, shares at Sep. 30, 2019			309.5					(103.9)
Balance at Jun. 30, 2019	11,662.2		$ 3.1	8,776.5	9,772.7		(171.8)	$ (6,721.4)	3.1
Balance, shares at Jun. 30, 2019			308.8					(103.9)
Net (loss) earnings	432.0				431.1				0.9
Other comprehensive income (loss)	(51.4)						(51.4)
Cash dividends declared	(49.4)				(49.4)
Stock compensation plans	92.1			90.7	0.9			$ 0.5
Stock compensation plans, shares			0.7
Balance at Sep. 30, 2019	12,085.5		$ 3.1	8,867.2	10,155.3		(223.2)	$ (6,720.9)	4.0
Balance, shares at Sep. 30, 2019			309.5					(103.9)
Balance at Dec. 31, 2019	12,392.8		$ 3.1	8,920.1	10,427.3		(241.9)	$ (6,720.5)	4.7
Balance, shares at Dec. 31, 2019			309.9					(103.9)
Net (loss) earnings	(471.2)				(472.6)				1.4
Other comprehensive income (loss)	(45.2)						(45.1)		(0.1)
Cash dividends declared	(149.1)				(149.1)
Stock compensation plans	154.0			152.9	0.4			$ 0.7
Stock compensation plans, shares			1.2					0.1
Balance at Sep. 30, 2020	11,878.2	$ (3.1)	$ 3.1	9,073.0	9,802.9	$ (3.1)	(287.0)	$ (6,719.8)	6.0
Balance, shares at Sep. 30, 2020			311.1					(103.8)
Balance at Jun. 30, 2020	11,643.9		$ 3.1	9,014.0	9,610.0		(265.8)	$ (6,719.9)	2.5
Balance, shares at Jun. 30, 2020			310.7					(103.8)
Net (loss) earnings	246.1				242.5				3.6
Other comprehensive income (loss)	(21.3)						(21.2)		(0.1)
Cash dividends declared	(49.8)				(49.8)
Stock compensation plans	59.3			59.0	0.2			$ 0.1
Stock compensation plans, shares			0.4
Balance at Sep. 30, 2020	$ 11,878.2	$ (3.1)	$ 3.1	$ 9,073.0	$ 9,802.9	$ (3.1)	$ (287.0)	$ (6,719.8)	$ 6.0
Balance, shares at Sep. 30, 2020			311.1					(103.8)