Borrowings (Summary of Long-term Notes) (Details) - USD ($) $ in Millions	Dec. 31, 2023	Feb. 28, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Unamortized note discounts	$ (121.2)		$ (96.1)
Total long-term notes	$ 19,104.6		14,815.3
Senior Notes | 0.15% Swiss franc denominated notes due 2024
Debt Instrument [Line Items]
Stated interest rate	0.15%
Long-term notes, gross	$ 714.6		649.5
Senior Notes | 7.125% notes due 2025
Debt Instrument [Line Items]
Stated interest rate	7.125%
Long-term notes, gross	$ 217.5		217.5
Senior Notes | 2.75% notes due 2025
Debt Instrument [Line Items]
Stated interest rate	2.75%
Long-term notes, gross	$ 560.6		560.6
Senior Notes | 5.0% notes due 2026
Debt Instrument [Line Items]
Stated interest rate	5.00%	5.00%
Long-term notes, gross	$ 750.0		0.0
Senior Notes | 1.625% euro denominated notes due 2026
Debt Instrument [Line Items]
Stated interest rate	1.625%
Long-term notes, gross	$ 830.7		799.3
Senior Notes | 5.5% notes due 2027
Debt Instrument [Line Items]
Stated interest rate	5.50%
Long-term notes, gross	$ 364.3		364.3
Senior Notes | 3.1% notes due 2027
Debt Instrument [Line Items]
Stated interest rate	3.10%
Long-term notes, gross	$ 401.5		401.5
Senior Notes | 0.45% Swiss franc denominated notes due 2028
Debt Instrument [Line Items]
Stated interest rate	0.45%
Long-term notes, gross	$ 476.4		433.0
Senior Notes | 3.375% notes due 2029
Debt Instrument [Line Items]
Stated interest rate	3.375%
Long-term notes, gross	$ 930.6		930.6
Senior Notes | 0.42% Japanese yen denominated notes due 2029
Debt Instrument [Line Items]
Stated interest rate	0.42%
Long-term notes, gross	$ 162.5		172.1
Senior Notes | 2.125% euro denominated notes due 2030
Debt Instrument [Line Items]
Stated interest rate	2.125%
Long-term notes, gross	$ 830.7		799.3
Senior Notes | 0.625% euro denominated notes due 2031
Debt Instrument [Line Items]
Stated interest rate	0.625%
Long-term notes, gross	$ 664.6		639.4
Senior Notes | 4.7% notes due 2033
Debt Instrument [Line Items]
Stated interest rate	4.70%	4.70%
Long-term notes, gross	$ 1,000.0		0.0
Senior Notes | 0.50% euro denominated notes due 2033
Debt Instrument [Line Items]
Stated interest rate	0.50%
Long-term notes, gross	$ 664.6		639.4
Senior Notes | 0.56% Japanese yen denominated notes due 2034
Debt Instrument [Line Items]
Stated interest rate	0.56%
Long-term notes, gross	$ 65.8		69.7
Senior Notes | 6.77% notes due 2036
Debt Instrument [Line Items]
Stated interest rate	6.77%
Long-term notes, gross	$ 158.6		158.6
Senior Notes | 5.55% notes due 2037
Debt Instrument [Line Items]
Stated interest rate	5.55%
Long-term notes, gross	$ 444.7		444.7
Senior Notes | 5.95% notes due 2037
Debt Instrument [Line Items]
Stated interest rate	5.95%
Long-term notes, gross	$ 266.8		266.8
Senior Notes | 3.875% notes due 2039
Debt Instrument [Line Items]
Stated interest rate	3.875%
Long-term notes, gross	$ 240.3		240.3
Senior Notes | 1.625% Notes due 2043
Debt Instrument [Line Items]
Stated interest rate	1.625%
Long-term notes, gross	$ 318.5		301.2
Senior Notes | 4.65% notes due 2044
Debt Instrument [Line Items]
Stated interest rate	4.65%
Long-term notes, gross	$ 38.3		38.3
Senior Notes | 3.7% notes due 2045
Debt Instrument [Line Items]
Stated interest rate	3.70%
Long-term notes, gross	$ 386.8		386.8
Senior Notes | 3.95% notes due 2047
Debt Instrument [Line Items]
Stated interest rate	3.95%
Long-term notes, gross	$ 347.0		347.0
Senior Notes | 3.95% notes due 2049
Debt Instrument [Line Items]
Stated interest rate	3.95%
Long-term notes, gross	$ 958.2		958.2
Senior Notes | 1.70% euro denominated notes due 2049
Debt Instrument [Line Items]
Stated interest rate	1.70%
Long-term notes, gross	$ 1,107.6		1,065.7
Senior Notes | 0.97% Japanese yen denominated notes due 2049
Debt Instrument [Line Items]
Stated interest rate	0.97%
Long-term notes, gross	$ 54.2		57.4
Senior Notes | 2.25% notes due 2050
Debt Instrument [Line Items]
Stated interest rate	2.25%
Long-term notes, gross	$ 1,250.0		1,250.0
Senior Notes | 1.125% euro denominated notes due 2051
Debt Instrument [Line Items]
Stated interest rate	1.125%
Long-term notes, gross	$ 553.8		532.9
Senior Notes | 4.875% notes due 2053
Debt Instrument [Line Items]
Stated interest rate	4.875%	4.875%
Long-term notes, gross	$ 1,250.0		0.0
Senior Notes | 4.15% notes due 2059
Debt Instrument [Line Items]
Stated interest rate	4.15%
Long-term notes, gross	$ 591.3		591.3
Senior Notes | 2.50% notes due 2060
Debt Instrument [Line Items]
Stated interest rate	2.50%
Long-term notes, gross	$ 850.0		850.0
Senior Notes | 1.375% euro denominated notes due 2061
Debt Instrument [Line Items]
Stated interest rate	1.375%
Long-term notes, gross	$ 775.3		746.0
Senior Notes | 4.95% notes due 2063
Debt Instrument [Line Items]
Stated interest rate	4.95%	4.95%
Long-term notes, gross	$ 1,000.0		$ 0.0