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:	ACCUMULATED OTHER COMPREHENSIVE LOSS:
Beginning balance at Dec. 31, 2022		$ 522.0	$ 196.1		$ 13,402.4	$ (953.4)
Net income	$ 1,955.0				1,955.0
Purchases				$ (3.0)
Cash dividends declared on common stock					(261.9)
Stock compensation		0.8	45.7
Other comprehensive (loss) income	175.6					175.6
Ending balance at Jun. 30, 2023	15,079.3	522.8	241.8	(3.0)	15,095.5	(777.8)
Beginning balance at Mar. 31, 2023		522.6	230.3	(3.0)	14,005.3	(873.2)
Net income	1,221.1				1,221.1
Cash dividends declared on common stock					(130.9)
Stock compensation		0.2	11.5
Other comprehensive (loss) income	95.4					95.4
Ending balance at Jun. 30, 2023	15,079.3	522.8	241.8	(3.0)	15,095.5	(777.8)
Beginning balance at Dec. 31, 2023	15,878.8	523.3	269.1		15,780.3	(693.9)
Net income	2,317.9				2,317.9
Purchases				(4.0)
Cash dividends declared on common stock					(299.6)
Stock compensation		1.0	60.1
Other comprehensive (loss) income	(251.3)					(251.3)
Ending balance at Jun. 30, 2024	17,702.9	524.3	329.2	(4.0)	17,798.6	(945.2)
Beginning balance at Mar. 31, 2024		524.1	318.3	(4.0)	16,833.7	(800.2)
Net income	1,122.6				1,122.6
Cash dividends declared on common stock					(157.7)
Stock compensation		0.2	10.9
Other comprehensive (loss) income	(145.0)					(145.0)
Ending balance at Jun. 30, 2024	$ 17,702.9	$ 524.3	$ 329.2	$ (4.0)	$ 17,798.6	$ (945.2)