Financing (Components Of Debt) (Details) € in Millions, SFr in Millions, $ in Millions, ¥ in Billions	Oct. 02, 2020 USD ($)	Oct. 02, 2020 EUR (€)	Oct. 02, 2020 JPY (¥)	Oct. 02, 2020 CHF (SFr)	Apr. 08, 2020 EUR (€)	Mar. 30, 2020 EUR (€)	Dec. 31, 2019 USD ($)	Dec. 31, 2019 EUR (€)	Dec. 31, 2019 JPY (¥)	Dec. 31, 2019 CHF (SFr)
Debt Instrument [Line Items]
Long-term debt	$ 21,825.8						$ 21,729.1
Less: currently payable	19.7						212.4
Long-term debt excluding currently payable	21,806.1						21,516.7
Other
Debt Instrument [Line Items]
Long-term debt	35.7						76.3
Commercial paper | Euro-denominated commercial paper
Debt Instrument [Line Items]
Long-term debt	1,860.8	€ 1,600.0					5,146.2	€ 4,600.0
Senior notes | 0.352% senior notes due 2021
Debt Instrument [Line Items]
Long-term debt	$ 284.6						275.8
Interest rate of debt instrument	0.352%	0.352%	0.352%	0.352%
Aggregate principal amount | ¥			¥ 30.0						¥ 30.0
Senior notes | 1.7% senior notes due 2022
Debt Instrument [Line Items]
Long-term debt	$ 935.5						894.8
Interest rate of debt instrument	1.70%	1.70%	1.70%	1.70%
Aggregate principal amount | €		€ 800.0						800.0
Senior notes | Floating rate senior notes due 2022
Debt Instrument [Line Items]
Long-term debt	$ 292.4						279.8
Aggregate principal amount | €		€ 250.0						250.0
Senior notes | 2.05% senior notes due 2022
Debt Instrument [Line Items]
Long-term debt	$ 697.8						696.9
Interest rate of debt instrument	2.05%	2.05%	2.05%	2.05%
Senior notes | 1.7% senior notes due 2024
Debt Instrument [Line Items]
Long-term debt	$ 1,049.4						0.0
Interest rate of debt instrument	1.70%	1.70%	1.70%	1.70%	1.70%	1.70%
Aggregate principal amount | €		€ 900.0			€ 150.0	€ 750.0
Senior notes | 2.2% senior notes due 2024
Debt Instrument [Line Items]
Long-term debt	$ 696.6						696.2
Interest rate of debt instrument	2.20%	2.20%	2.20%	2.20%
Senior notes | 2.5% senior notes due 2025
Debt Instrument [Line Items]
Long-term debt	$ 934.0						893.7
Interest rate of debt instrument	2.50%	2.50%	2.50%	2.50%
Aggregate principal amount | €		€ 800.0						800.0
Senior notes | 3.35% senior notes due 2025
Debt Instrument [Line Items]
Long-term debt	$ 497.6						497.3
Interest rate of debt instrument	3.35%	3.35%	3.35%	3.35%
Senior notes | 0.2% senior notes due 2026
Debt Instrument [Line Items]
Long-term debt	$ 1,455.5						1,392.3
Interest rate of debt instrument	0.20%	0.20%	0.20%	0.20%
Aggregate principal amount | €		€ 1,300.0						1,300.0
Senior notes | 2.1% senior notes due 2026
Debt Instrument [Line Items]
Long-term debt	$ 933.3						0.0
Interest rate of debt instrument	2.10%	2.10%	2.10%	2.10%	2.10%	2.10%
Aggregate principal amount | €		€ 800.0			€ 300.0	€ 500.0
Senior notes | 0.3% senior notes due 2027
Debt Instrument [Line Items]
Long-term debt	$ 291.4						282.5
Interest rate of debt instrument	0.30%	0.30%	0.30%	0.30%
Aggregate principal amount | ¥			¥ 30.8						30.8
Senior notes | 1.2% senior notes due 2027
Debt Instrument [Line Items]
Long-term debt	$ 698.4						668.0
Interest rate of debt instrument	1.20%	1.20%	1.20%	1.20%
Aggregate principal amount | €		€ 600.0						600.0
Senior notes | 0.45% senior notes due 2028
Debt Instrument [Line Items]
Long-term debt	$ 1,453.6						1,390.1
Interest rate of debt instrument	0.45%	0.45%	0.45%	0.45%
Aggregate principal amount | €		€ 1,300.0						1,300.0
Senior notes | 2.6% senior notes due 2029
Debt Instrument [Line Items]
Long-term debt	$ 794.6						794.8
Interest rate of debt instrument	2.60%	2.60%	2.60%	2.60%
Senior notes | 2.5% senior notes due 2030
Debt Instrument [Line Items]
Long-term debt	$ 936.8						0.0
Interest rate of debt instrument	2.50%	2.50%	2.50%	2.50%	2.50%	2.50%
Aggregate principal amount | €		€ 800.0			€ 300.0	€ 500.0
Senior notes | 0.75% senior notes due 2031
Debt Instrument [Line Items]
Long-term debt	$ 2,037.0						1,948.7
Interest rate of debt instrument	0.75%	0.75%	0.75%	0.75%
Aggregate principal amount | €		€ 1,800.0						1,800.0
Senior notes | 0.65% senior notes due 2032
Debt Instrument [Line Items]
Long-term debt	$ 503.1						487.8
Interest rate of debt instrument	0.65%	0.65%	0.65%	0.65%
Aggregate principal amount | ¥			¥ 53.2						¥ 53.2
Senior notes | 1.35% senior notes due 2039
Debt Instrument [Line Items]
Long-term debt	$ 1,446.6						1,383.6
Interest rate of debt instrument	1.35%	1.35%	1.35%	1.35%
Aggregate principal amount | €		€ 1,300.0						1,300.0
Senior notes | 3.25% senior notes due 2039
Debt Instrument [Line Items]
Long-term debt	$ 889.2						890.3
Interest rate of debt instrument	3.25%	3.25%	3.25%	3.25%
Senior notes | 4.375% senior notes due 2045
Debt Instrument [Line Items]
Long-term debt	$ 499.4						499.4
Interest rate of debt instrument	4.375%	4.375%	4.375%	4.375%
Senior notes | 1.8% senior notes due 2049
Debt Instrument [Line Items]
Long-term debt	$ 868.6						830.9
Interest rate of debt instrument	1.80%	1.80%	1.80%	1.80%
Aggregate principal amount | €		€ 750.0						€ 750.0
Senior notes | 3.4% senior notes due 2049
Debt Instrument [Line Items]
Long-term debt	$ 888.6						890.2
Interest rate of debt instrument	3.40%	3.40%	3.40%	3.40%
Convertible debt | Zero-coupon LYONs due 2021
Debt Instrument [Line Items]
Long-term debt	$ 26.2						33.6
Interest rate of debt instrument	0.00%	0.00%	0.00%	0.00%
Bonds | 0.5% senior bonds due 2023
Debt Instrument [Line Items]
Long-term debt	$ 587.3						558.9
Interest rate of debt instrument	0.50%	0.50%	0.50%	0.50%
Aggregate principal amount | SFr				SFr 540.0						SFr 540.0
Bonds | 1.125% senior bonds due 2028
Debt Instrument [Line Items]
Long-term debt	$ 231.8						$ 221.0
Interest rate of debt instrument	1.125%	1.125%	1.125%	1.125%
Aggregate principal amount | SFr				SFr 210.0						SFr 210.0