Document And Entity Information - shares	9 Months Ended
	Sep. 28, 2018	Oct. 12, 2018
Document And Entity Information [Abstract]
Document type	10-Q
Amendment flag	false
Document period end date	Sep. 28, 2018
Document fiscal year focus	2018
Document fiscal period focus	Q3
Trading symbol	dhr
Entity registrant name	DANAHER CORP /DE/
Entity central index key	0000313616
Current fiscal year end date	--12-31
Entity filer category	Large Accelerated Filer
Entity common stock, shares outstanding		700,902,703