Employee Benefits (Tables)

6 Months Ended

Jun. 30, 2013

Compensation And Retirement Disclosure [Abstract]

Components of Net Periodic Benefit Cost

The following table summarizes the components of net periodic benefit cost for the three and six month periods ended June 30, 2013 and 2012 for the Ryerson pension plans and postretirement benefits other than pension:

	Three Months Ended June 30,
	Pension Benefits						Other Benefits
	2013			2012			2013			2012
	(In millions)
Components of net periodic benefit cost
Interest cost		9			10			1			2
Expected return on assets		(11	)		(11	)		—			—
Prior service cost		—			—			(1	)		—
Recognized actuarial net (gain) loss		4			4			(1	)		(2	)
Net periodic benefit cost (credit)	$	2		$	3		$	(1	)	$	—

	Six Months Ended June 30,
	Pension Benefits						Other Benefits
	2013			2012			2013			2012
	(In millions)
Components of net periodic benefit cost
Service cost	$	1		$	1		$	—		$	—
Interest cost		18			20			2			4
Expected return on assets		(22	)		(22	)		—			—
Prior service cost		—			—			(1	)		—
Recognized actuarial net (gain) loss		7			6			(3	)		(4	)
Net periodic benefit cost (credit)	$	4		$	5		$	(2	)	$	—