Pension and Postretirement Plans (Tables)

9 Months Ended

Oct. 27, 2012

Components of Net Periodic Pension Benefit Cost and Postretirement Benefit Income

The following are the components of net periodic pension benefit cost and net periodic postretirement benefit income:

	Pension Benefits												Postretirement Benefits
	Thirteen weeks						Thirty-nine weeks						Thirteen weeks						Thirty-nine weeks
	Ended						ended						ended						ended
	October 27,			October 29,			October 27,			October 29,			October 27,			October 29,			October 27,			October 29,
(in millions)	2012			2011			2012			2011			2012			2011			2012			2011
Service cost	$	3		$	3		$	10		$	9		$	—		$	—		$	—		$	—
Interest cost		7			8			21			24			—			—			—			—
Expected return on plan assets		(10	)		(10	)		(30	)		(30	)		—			—			—			—
Amortization of net loss (gain)		4			4			12			11			(1	)		(2	)		(3	)		(4	)
Net benefit expense (income)	$	4		$	5		$	13		$	14		$	(1	)	$	(2	)	$	(3	)	$	(4	)