Income Taxes, Pretax Income and Provision for Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income before income taxes:
United States	$ 996.2	$ 462.0	$ 521.9
Foreign	4,604.5	2,549.9	1,932.9
Income before income taxes	5,600.7	3,011.9	2,454.8
Current tax provision (benefit):
United States - Federal	179.4	22.8	45.8
United States - State, net	32.4	(3.8)	9.3
Foreign	1,149.2	634.1	513.0
Provision for income taxes, current	1,361.0	653.1	568.1
Deferred tax provision (benefit):
United States - Federal	(152.3)	(53.9)	(4.6)
United States - State, net	(12.8)	(2.3)	(5.4)
Foreign	99.5	(26.6)	(48.8)
Provision for income taxes, deferred	(65.6)	(82.8)	(58.8)
Provision for income taxes	$ 1,295.4	$ 570.3	$ 509.3