Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2020	Jan. 29, 2021	Jun. 30, 2020
Document Information [Line Items]
Entity Central Index Key	0000026780
Entity Registrant Name	Dana Inc.
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2020
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2020
Document Transition Report	false
Entity File Number	1-1063
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	26-1531856
Entity Address, Address Line One	3939 Technology Drive
Entity Address, City or Town	Maumee
Entity Address, State or Province	OH
Entity Address, Postal Zip Code	43537
City Area Code	419
Local Phone Number	887-3000
Title of 12(b) Security	Common stock, par value $0.01 per share
Trading Symbol	DAN
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 1,750,128,369
Entity Common Stock, Shares Outstanding		144,670,587
ICFR Auditor Attestation Flag	true