Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Millions	Total		COMMON STOCK, $1 PAR VALUE:	ADDITIONAL PAID-IN CAPITAL:	TREASURY STOCK, AT COST:	RETAINED EARNINGS:	RETAINED EARNINGS: Adjustment Cumulative Effect of Change in Accounting Principle	ACCUMULATED OTHER COMPREHENSIVE LOSS:
Beginning balance at Dec. 31, 2018			$ 346.6	$ 69.4		$ 9,275.4		$ (1,098.5)
Net income	$ 1,856.6					1,856.6
Purchases					$ (110.2)
Cash dividends declared on common stock						(333.3)
Stock compensation			0.8	47.4
Other comprehensive income (loss)	(91.5)							(91.5)
Ending balance at Sep. 30, 2019	9,962.7		347.4	116.8	(110.2)	10,798.7		(1,190.0)
Beginning balance at Jun. 30, 2019			347.2	105.1	(56.5)	10,301.8		(1,062.2)
Net income	607.9					607.9
Purchases					(53.7)
Cash dividends declared on common stock						(111.0)
Stock compensation			0.2	11.7
Other comprehensive income (loss)	(127.8)							(127.8)
Ending balance at Sep. 30, 2019	9,962.7		347.4	116.8	(110.2)	10,798.7		(1,190.0)
Beginning balance at Dec. 31, 2019	9,706.1	[1]	346.3	61.4		10,398.5		(1,100.1)
Net income	892.6					892.6
Purchases					(41.6)
Cash dividends declared on common stock						(332.9)
Stock compensation			0.7	53.0
Other comprehensive income (loss)	(88.9)							(88.9)
Ending balance at Sep. 30, 2020	10,184.4		347.0	114.4	(41.6)	10,953.6	$ (4.6)	(1,189.0)
Beginning balance at Jun. 30, 2020			346.5	82.7	(41.6)	10,679.1		(1,289.9)
Net income	385.5					385.5
Cash dividends declared on common stock						(111.0)
Stock compensation			0.5	31.7
Other comprehensive income (loss)	100.9							100.9
Ending balance at Sep. 30, 2020	$ 10,184.4		$ 347.0	$ 114.4	$ (41.6)	$ 10,953.6	$ (4.6)	$ (1,189.0)

[1] The December 31, 2019 consolidated balance sheet has been derived from audited financial statements.