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Borrowings (Summary of Long-term Notes) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Aug. 31, 2020	May 31, 2020	Nov. 30, 2019	Feb. 28, 2019
Debt Instrument [Line Items]
Unamortized note discounts	$ (105.2)	$ (76.7)
Total long-term notes	$ 16,741.2	16,348.7
Senior Notes | 2.35% notes due 2022
Debt Instrument [Line Items]
Stated interest rate	2.35%
Long-term notes, gross	$ 750.0	750.0
Senior Notes | 3.00% notes due 2022
Debt Instrument [Line Items]
Stated interest rate	3.00%
Long-term notes, gross	$ 99.2	99.2
Senior Notes | 1.00% euro denominated notes due 2022
Debt Instrument [Line Items]
Stated interest rate	1.00%
Long-term notes, gross	$ 678.2	737.9
Senior Notes | 0.15% Swiss franc denominated notes due 2024
Debt Instrument [Line Items]
Stated interest rate	0.15%
Long-term notes, gross	$ 654.7	679.7
Senior Notes | 7.125% notes due 2025
Debt Instrument [Line Items]
Stated interest rate	7.125%
Long-term notes, gross	$ 217.5	229.7
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 | 1.625% euro denominated notes due 2026
Debt Instrument [Line Items]
Stated interest rate	1.625%
Long-term notes, gross	$ 847.7	922.4
Senior Notes | 5.5% notes due 2027
Debt Instrument [Line Items]
Stated interest rate	5.50%
Long-term notes, gross	$ 364.3	377.5
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	$ 436.4	453.2
Senior Notes | 3.375% notes due 2029
Debt Instrument [Line Items]
Stated interest rate	3.375%					3.375%
Long-term notes, gross	$ 930.6	1,150.0
Senior Notes | 0.42% Japanese yen denominated notes due 2029
Debt Instrument [Line Items]
Stated interest rate	0.42%				0.42%
Long-term notes, gross	$ 199.0	222.4
Senior Notes | 2.125% euro denominated notes due 2030
Debt Instrument [Line Items]
Stated interest rate	2.125%
Long-term notes, gross	$ 847.7	922.4
Senior Notes | 0.625% euro denominated notes due 2031
Debt Instrument [Line Items]
Stated interest rate	0.625%				0.625%
Long-term notes, gross	$ 678.2	737.9
Senior Notes | 0.50% euro denominated notes due 2033
Debt Instrument [Line Items]
Stated interest rate	0.50%
Long-term notes, gross	$ 678.2	0.0
Senior Notes | 0.56% Japanese yen denominated notes due 2034
Debt Instrument [Line Items]
Stated interest rate	0.56%				0.56%
Long-term notes, gross	$ 80.5	90.0
Senior Notes | 6.77% notes due 2036
Debt Instrument [Line Items]
Stated interest rate	6.77%
Long-term notes, gross	$ 158.6	174.4
Senior Notes | 5.55% notes due 2037
Debt Instrument [Line Items]
Stated interest rate	5.55%
Long-term notes, gross	$ 444.7	476.2
Senior Notes | 5.95% notes due 2037
Debt Instrument [Line Items]
Stated interest rate	5.95%
Long-term notes, gross	$ 266.8	284.1
Senior Notes | 3.875% notes due 2039
Debt Instrument [Line Items]
Stated interest rate	3.875%					3.875%
Long-term notes, gross	$ 240.3	360.7
Senior Notes | 1.625% Notes due 2043
Debt Instrument [Line Items]
Stated interest rate	1.625%
Long-term notes, gross	$ 337.1	0.0
Senior Notes | 4.65% notes due 2044
Debt Instrument [Line Items]
Stated interest rate	4.65%
Long-term notes, gross	$ 38.3	43.0
Senior Notes | 3.7% notes due 2045
Debt Instrument [Line Items]
Stated interest rate	3.70%
Long-term notes, gross	$ 386.8	412.5
Senior Notes | 3.95% notes due 2047
Debt Instrument [Line Items]
Stated interest rate	3.95%
Long-term notes, gross	$ 347.0	436.1
Senior Notes | 3.95% notes due 2049
Debt Instrument [Line Items]
Stated interest rate	3.95%					3.95%
Long-term notes, gross	$ 958.2	1,500.0
Senior Notes | 1.70% euro denominated notes due 2049
Debt Instrument [Line Items]
Stated interest rate	1.70%				1.70%
Long-term notes, gross	$ 1,130.3	1,229.9
Senior Notes | 0.97% Japanese yen denominated notes due 2049
Debt Instrument [Line Items]
Stated interest rate	0.97%				97.00%
Long-term notes, gross	$ 66.3	74.1
Senior Notes | 2.25% notes due 2050
Debt Instrument [Line Items]
Stated interest rate	2.25%		2.25%	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	$ 565.2	0.0
Senior Notes | 4.15% notes due 2059
Debt Instrument [Line Items]
Stated interest rate	4.15%					4.15%
Long-term notes, gross	$ 591.3	1,000.0
Senior Notes | 2.50% notes due 2060
Debt Instrument [Line Items]
Stated interest rate	2.50%		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	$ 791.2	$ 0.0

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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