Financing (Components Of Debt) (Table) (Details) € in Millions, SFr in Millions, $ in Millions, ¥ in Billions	Dec. 31, 2019 USD ($)	Dec. 31, 2019 CHF (SFr)	Dec. 31, 2019 EUR (€)	Dec. 31, 2019 JPY (¥)	Nov. 07, 2019 USD ($)	Oct. 24, 2019	Dec. 31, 2018 USD ($)	Dec. 31, 2018 CHF (SFr)	Dec. 31, 2018 EUR (€)	Dec. 31, 2018 JPY (¥)	Dec. 31, 2001 USD ($)
Debt Instrument [Line Items]
Total debt	$ 21,729.1						$ 9,740.3
Less: currently payable	212.4						51.8
Long-term debt	21,516.7						9,688.5
U.S. dollar-denominated commercial paper | Commercial paper
Debt Instrument [Line Items]
Total debt	0.0						72.8
Euro-denominated commercial paper | Commercial paper
Debt Instrument [Line Items]
Total debt	5,146.2		€ 4,600.0				2,377.5		€ 2,100.0
1.0% senior unsecured notes due 2019 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 0.0						687.0
Interest rate of debt instrument	1.00%	1.00%	1.00%	1.00%
Debt instrument, face amount | €			€ 0.0						600.0
2.4% senior unsecured notes due 2020 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 0.0						498.5
Interest rate of debt instrument	2.40%	2.40%	2.40%	2.40%		2.40%
5.0% senior unsecured notes due 2020 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 0.0						386.7
Interest rate of debt instrument	5.00%	5.00%	5.00%	5.00%
Zero-coupon LYONS due 2021 | Convertible debt
Debt Instrument [Line Items]
Total debt	$ 33.6						56.2
Interest rate of debt instrument	0.00%	0.00%	0.00%	0.00%							2.375%
Debt instrument, face amount											$ 830.0
0.352% senior unsecured notes due 2021 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 275.8						273.2
Interest rate of debt instrument	0.352%	0.352%	0.352%	0.352%
Debt instrument, face amount | ¥				¥ 30.0						¥ 30.0
1.7% senior unsecured notes due 2022 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 894.8						913.2
Interest rate of debt instrument	1.70%	1.70%	1.70%	1.70%
Debt instrument, face amount | €			€ 800.0						800.0
Floating rate senior unsecured notes due 2022 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 279.8						285.7
Debt instrument, face amount | €			€ 250.0						250.0
2.05% senior unsecured notes due 2022 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 696.9						0.0
Interest rate of debt instrument	2.05%	2.05%	2.05%	2.05%	2.05%
Debt instrument, face amount					$ 700.0
0.5% senior unsecured bonds due 2023 | Bonds
Debt Instrument [Line Items]
Total debt	$ 558.9						550.7
Interest rate of debt instrument	0.50%	0.50%	0.50%	0.50%
Debt instrument, face amount | SFr		SFr 540						SFr 540
2.2% senior unsecured notes due 2024 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 696.2						0.0
Interest rate of debt instrument	2.20%	2.20%	2.20%	2.20%	2.20%
Debt instrument, face amount					$ 700.0
2.5% senior unsecured notes due 2025 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 893.7						912.6
Interest rate of debt instrument	2.50%	2.50%	2.50%	2.50%
Debt instrument, face amount | €			€ 800.0						800.0
3.35% senior unsecured notes due 2025 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 497.3						496.8
Interest rate of debt instrument	3.35%	3.35%	3.35%	3.35%
0.2% senior unsecured notes due 2026 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 1,392.3						0.0
Interest rate of debt instrument	0.20%	0.20%	0.20%	0.20%
Debt instrument, face amount | €			€ 1,300.0						0.0
0.3% senior unsecured notes due 2027 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 282.5						279.9
Interest rate of debt instrument	0.30%	0.30%	0.30%	0.30%
Debt instrument, face amount | ¥				¥ 30.8						30.8
1.2% senior unsecured notes due 2027 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 668.0						682.0
Interest rate of debt instrument	1.20%	1.20%	1.20%	1.20%
Debt instrument, face amount | €			€ 600.0						600.0
0.45% senior unsecured notes due 2028 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 1,390.1						0.0
Interest rate of debt instrument	0.45%	0.45%	0.45%	0.45%
Debt instrument, face amount | €			€ 1,300.0						0.0
1.125% senior unsecured bonds due 2028 | Bonds
Debt Instrument [Line Items]
Total debt	$ 221.0						218.1
Interest rate of debt instrument	1.125%	1.125%	1.125%	1.125%
Debt instrument, face amount | SFr		SFr 210						SFr 210
2.6% senior unsecured notes due 2029 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 794.8						0.0
Interest rate of debt instrument	2.60%	2.60%	2.60%	2.60%	2.60%
Debt instrument, face amount					$ 800.0
0.75% senior unsecured notes due 2031 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 1,948.7						0.0
Interest rate of debt instrument	0.75%	0.75%	0.75%	0.75%
Debt instrument, face amount | €			€ 1,800.0						0.0
0.65% senior unsecured notes due 2032 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 487.8						483.4
Interest rate of debt instrument	0.65%	0.65%	0.65%	0.65%
Debt instrument, face amount | ¥				¥ 53.2						¥ 53.2
1.35% senior unsecured notes due 2039 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 1,383.6						0.0
Interest rate of debt instrument	1.35%	1.35%	1.35%	1.35%
Debt instrument, face amount | €			€ 1,300.0						0.0
3.25% senior unsecured notes due 2039 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 890.3						0.0
Interest rate of debt instrument	3.25%	3.25%	3.25%	3.25%	3.25%
Debt instrument, face amount					$ 900.0
4.375% senior unsecured notes due 2045 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 499.4						499.3
Interest rate of debt instrument	4.375%	4.375%	4.375%	4.375%
1.8% senior unsecured notes due 2049 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 830.9						0.0
Interest rate of debt instrument	1.80%	1.80%	1.80%	1.80%
Debt instrument, face amount | €			€ 750.0						€ 0.0
3.4% senior unsecured notes due 2049 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 890.2						0.0
Interest rate of debt instrument	3.40%	3.40%	3.40%	3.40%	3.40%
Debt instrument, face amount					$ 900.0
Other
Debt Instrument [Line Items]
Total debt	$ 76.3						$ 66.7