Shareholders' Equity (Tables)

3 Months Ended

Mar. 31, 2012

Statement of Stockholders' Equity [Abstract]

Schedule Of Stockholders' Equity

	(In Millions)
	Cliffs Shareholders' Equity			Non- Controlling Interest			Total Equity
December 31, 2011	$	5,785.0		$	1,254.7		$	7,039.7
Comprehensive income
Net income		375.8			15.6			391.4
Other comprehensive income		21.7			1.5			23.2
Total comprehensive income		397.5			17.1			414.6
Stock and other incentive plans		(2.8	)		-			(2.8	)
Common stock dividends		(39.7	)		-			(39.7	)
Undistributed gains to noncontrolling interest		-			7.8			7.8
Capital contribution by noncontrolling interest to subsidiary		-			22.3			22.3
Acquisition of controlling interest		-			(8.0	)		(8.0	)
March 31, 2012	$	6,140.0		$	1,293.9		$	7,433.9

	(In Millions)
	Cliffs Shareholders' Equity			Non- Controlling Interest			Total Equity
December 31, 2010	$	3,845.9		$	(7.2	)	$	3,838.7
Comprehensive income
Net income		423.4			(0.1	)		423.3
Other comprehensive income		24.1			0.5			24.6
Total comprehensive income		447.5			0.4			447.9
Purchase of additional noncontrolling interest		(0.1	)		-			(0.1	)
Stock and other incentive plans		(1.3	)		-			(1.3	)
Common stock dividends		(19.0	)		-			(19.0	)
Purchase of subsidiary shares from noncontrolling interest		-			7.5			7.5
Undistributed gains to noncontrolling interest		-			0.2			0.2
March 31, 2011	$	4,273.0		$	0.9		$	4,273.9