Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2019	Feb. 04, 2020	Jun. 30, 2019
Entity Information [Line Items]
Entity Registrant Name	Dover Corporation
Entity Central Index Key	0000029905
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Shell Company	false
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Public Float			$ 14,526,718,145
Entity Common Stock, Shares Outstanding		144,328,014
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2019
Entity File Number	1-4018
Entity Address, Address Line One	3005 Highland Parkway
Entity Address, City or Town	Downers Grove,
Entity Address, State or Province	IL
Entity Address, Postal Zip Code	60515
City Area Code	(630)
Local Phone Number	541-1540
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	53-0257888
Entity Interactive Data Current	Yes
Document Annual Report	true
Document Transition Report	false
Public Float, Stock Price			$ 100.20
0.750 Notes due 2027 [Member]
Entity Information [Line Items]
Title of 12(b) Security	0.750% Notes due 2027
Trading Symbol	DOV 27
Security Exchange Name	NYSE
1.250 Notes Due 2026 [Member]
Entity Information [Line Items]
Title of 12(b) Security	1.250% Notes due 2026
Trading Symbol	DOV 26
Security Exchange Name	NYSE
Common Stock [Member]
Entity Information [Line Items]
Title of 12(b) Security	Common Stock, par value $1
Trading Symbol	DOV
Security Exchange Name	NYSE