Note 8 - Stock Compensation - Granted Awards Activity (Details) shares in Millions	3 Months Ended
	Mar. 31, 2026 $ / shares shares
Restricted Stock Units (RSUs) [Member]
Granted (in shares) | shares	0.3
Grant Date Fair Value (in dollars per share) | $ / shares	$ 31.69	[1]
Performance Share Units [Member]
Granted (in shares) | shares	0.3
Grant Date Fair Value (in dollars per share) | $ / shares	$ 33.17	[1]
Dana Transformation Awards [Member]
Granted (in shares) | shares	1.0
Grant Date Fair Value (in dollars per share) | $ / shares	$ 49.15	[1]

[1] Weighted-average per share