Benefit Plans (Tables)

9 Months Ended

Nov. 01, 2014

Pension and Other Postretirement Benefit Expense [Abstract]

Schedule of Net Periodic Benefit Costs

The actuarially determined components of the net periodic benefit cost (income) are as follows:

	13 Weeks Ended						39 Weeks Ended
	November 1, 2014			November 2, 2013			November 1, 2014			November 2, 2013
	(millions)
Pension Plan
Service cost	$	2		$	28		$	5		$	84
Interest cost	38			36			113			107
Expected return on assets	(62		)	(60		)	(185		)	(181		)
Recognition of net actuarial loss	6			34			19			105
Amortization of prior service credit	—			—			—			—
	$	(16	)	$	38		$	(48	)	$	115
Supplementary Retirement Plan
Service cost	$	—		$	2		$	—		$	5
Interest cost	8			8			25			24
Recognition of net actuarial loss	1			4			3			14
Amortization of prior service cost	—			—			—			—
	$	9		$	14		$	28		$	43
Postretirement Obligations
Service cost	$	—		$	—		$	—		$	—
Interest cost	3			2			7			7
Recognition of net actuarial gain	(2		)	—			(4		)	(2		)
Amortization of prior service cost	—			—			—			—
	$	1		$	2		$	3		$	5