Financing (Components Of Debt) (Details) € in Millions, SFr in Millions, ¥ in Billions	Sep. 27, 2019 USD ($)	Sep. 27, 2019 CHF (SFr)	Sep. 27, 2019 JPY (¥)	Sep. 27, 2019 EUR (€)	Sep. 18, 2019 EUR (€)	Dec. 31, 2018 USD ($)	Dec. 31, 2018 CHF (SFr)	Dec. 31, 2018 JPY (¥)	Dec. 31, 2018 EUR (€)
Debt Instrument [Line Items]
Long-term debt	$ 17,604,800,000					$ 9,740,300,000
Less: currently payable	1,068,600,000					51,800,000
Long-term debt excluding currently payable	16,536,200,000					9,688,500,000
Other
Debt Instrument [Line Items]
Long-term debt	197,200,000					66,700,000
Commercial paper | U.S. dollar-denominated commercial paper
Debt Instrument [Line Items]
Long-term debt	0					72,800,000
Commercial paper | Euro-denominated commercial paper
Debt Instrument [Line Items]
Long-term debt	2,900,000,000			€ 2,700.0		2,377,500,000			€ 2,100.0
Senior notes | 1.0% senior notes due 2019
Debt Instrument [Line Items]
Long-term debt	$ 0					687,000,000.0
Interest rate of debt instrument	1.00%	1.00%	1.00%	1.00%
Aggregate principal amount | €				€ 0.0					600.0
Senior notes | 2.4% senior notes due 2020
Debt Instrument [Line Items]
Long-term debt	$ 499,200,000					498,500,000
Interest rate of debt instrument	2.40%	2.40%	2.40%	2.40%
Senior notes | 5.0% senior notes due 2020
Debt Instrument [Line Items]
Long-term debt	$ 382,800,000					386,700,000
Interest rate of debt instrument	5.00%	5.00%	5.00%	5.00%
Senior notes | 0.352% senior notes due 2021
Debt Instrument [Line Items]
Long-term debt	$ 277,600,000					273,200,000
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	$ 872,600,000					913,200,000
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	$ 272,900,000					285,700,000
Aggregate principal amount | €				€ 250.0					250.0
Senior notes | 2.5% senior notes due 2025
Debt Instrument [Line Items]
Long-term debt	$ 871,700,000					912,600,000
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	$ 497,100,000					496,800,000
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	$ 1,357,500,000					0
Interest rate of debt instrument	0.20%	0.20%	0.20%	0.20%	0.20%
Aggregate principal amount | €				€ 1,300.0	€ 1,250.0				0.0
Senior notes | 0.3% senior notes due 2027
Debt Instrument [Line Items]
Long-term debt	$ 284,400,000					279,900,000
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	$ 651,500,000					682,000,000.0
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	$ 1,355,600,000					0
Interest rate of debt instrument	0.45%	0.45%	0.45%	0.45%	0.45%
Aggregate principal amount | €				€ 1,300.0	€ 1,250.0				0.0
Senior notes | 0.75% senior notes due 2031
Debt Instrument [Line Items]
Long-term debt	$ 1,900,700,000					0
Interest rate of debt instrument	0.75%	0.75%	0.75%	0.75%	0.75%
Aggregate principal amount | €				€ 1,800.0	€ 1,750.0				0.0
Senior notes | 0.65% senior notes due 2032
Debt Instrument [Line Items]
Long-term debt	$ 491,100,000					483,400,000
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	$ 1,349,200,000					0
Interest rate of debt instrument	1.35%	1.35%	1.35%	1.35%	1.35%
Aggregate principal amount | €				€ 1,300.0	€ 1,250.0				0.0
Senior notes | 4.375% senior notes due 2045
Debt Instrument [Line Items]
Long-term debt	$ 499,400,000					499,300,000
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	$ 810,300,000					0
Interest rate of debt instrument	1.80%	1.80%	1.80%	1.80%	1.80%
Aggregate principal amount | €				€ 750.0	€ 750.0				0.0
Unsecured debt | Envista term loan facility
Debt Instrument [Line Items]
Long-term debt	$ 648,600,000					0
Unsecured debt | Envista euro term loan facility
Debt Instrument [Line Items]
Long-term debt	655,600,000					0
Aggregate principal amount | €				€ 600.0					€ 0.0
Convertible debt | Zero-coupon LYONs due 2021
Debt Instrument [Line Items]
Long-term debt	$ 34,600,000					56,200,000
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	$ 546,000,000.0					550,700,000
Interest rate of debt instrument	0.50%	0.50%	0.50%	0.50%
Aggregate principal amount | SFr		SFr 540					SFr 540
Bonds | 1.125% senior bonds due 2028
Debt Instrument [Line Items]
Long-term debt	$ 216,000,000.0					$ 218,100,000
Interest rate of debt instrument	1.125%	1.125%	1.125%	1.125%
Aggregate principal amount | SFr		SFr 210					SFr 210