Income Taxes (Schedule of Reconciliation of Income Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Income tax at the U.S. federal statutory tax rate	$ 1,376.5	$ 1,429.3	$ 1,292.6
Add (deduct):
Non-deductible acquired IPR&D	677.2	68.3	10.5
General business credits	(258.0)	(155.0)	(100.5)
Foreign-derived intangible income deduction	(236.7)	(287.5)	(86.7)
International operations, including Puerto Rico	187.1	299.5	447.5
Stock-based compensation	(79.9)	(48.9)	(55.7)
Valuation allowance release	(4.2)	(116.4)	(19.0)
Other	26.4	(28.7)	(19.9)
Income taxes	$ 1,314.2	$ 561.6	$ 573.8

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Amount of reported income tax benefit from difference to expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations, attributable to foreign-derived intangible income (FDII).

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to nondeductible expense for award under share-based payment arrangement. Includes, but is not limited to, expense determined to be nondeductible upon grant or after for award under share-based payment arrangement.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits.

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