Business and Basis of Presentation - (Narrative) (Details) $ / shares in Units, shares in Millions, $ in Millions		12 Months Ended
	Sep. 20, 2019 USD ($) $ / shares shares	Dec. 31, 2019 Business_Segments
Business Acquisition [Line Items]
Issuance of common stock (in shares)	30.8
Payments to acquire business | $	$ 2,000
Shares issued to Danaher	127.9
Number of business segments (in segments) | Business_Segments		2
IPO
Business Acquisition [Line Items]
Issuance of common stock (in shares)	30.8
Percentage of outstanding share issues in sale of stock	19.40%
Price per share (in dollars per share) | $ / shares	$ 22.00
Proceeds from issuance IPO | $	$ 643