Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 4,162.0	$ 4,600.8	$ 3,011.6
Unrealized gains (losses) on derivative contracts
Net gain (loss) arising during the period	261.1	(174.9)	17.7
Tax effect	(56.9)	37.0	(9.1)
Reclassification adjustment	(200.2)	111.8	48.0
Tax effect	39.5	(20.0)	(8.0)
Net current period OCI, unrealized gains (losses) on derivative contracts	43.5	(46.1)	48.6
Unrealized gains (losses) on marketable debt securities
Net holding gain (loss)	20.6	43.2	(54.9)
Tax effect	(5.1)	(10.8)	13.6
Reclassification adjustment	(3.0)	(3.6)	(1.6)
Tax effect	0.7	0.9	0.4
Net current period OCI, unrealized (losses) gains on marketable debt securities	13.2	29.7	(42.5)
Pension plans
Net gain (loss) arising during the period	230.3	(5.8)	170.5
Tax effect	(57.2)	1.8	(34.1)
Reclassification adjustment	8.6	6.1	29.6
Tax effect	(1.7)	(1.5)	(7.1)
Net current period OCI, pension plans	180.0	0.6	158.9
Foreign currency translation (loss) gain	(656.1)	275.3	(197.3)
Net other comprehensive (loss) income	(419.4)	259.5	(32.3)
Comprehensive Income	$ 3,742.6	$ 4,860.3	$ 2,979.3