Pension and Other Postretirement Benefits (Tables)

9 Months Ended

Sep. 28, 2013

Compensation and Retirement Disclosure [Abstract]

Net periodic pension costs under retirement plans and other post-retirement benefits

Net Periodic Pension and Other Postretirement Benefits ("OPEB") Cost

	For the Thirteen Weeks Ended
	September 28, 2013									September 29, 2012
	Pension			OPEB			Consolidated			Pension			OPEB			Consolidated
	(In millions)
Net periodic pension and OPEB cost:
Service cost - benefits earned during the year	$	3.9		$	0.8		$	4.7		$	4.2		$	0.7		$	4.9
Interest cost on projected benefit obligation	38.7			1.7			40.4			41.3			2.0			43.3
Expected return on plan assets	(44.0		)	—			(44.0		)	(43.6		)	—			(43.6		)
Amortization of prior service cost (benefit)	0.2			(0.9		)	(0.7		)	0.2			(0.9		)	(0.7		)
Amortization of net actuarial loss (gain)	14.0			—			14.0			9.8			(0.1		)	9.7
Less: expected participant contributions	(0.3		)	—			(0.3		)	(0.4		)	—			(0.4		)
Net periodic pension and OPEB cost	$	12.5		$	1.6		$	14.1		$	11.5		$	1.7		$	13.2

	For the Thirty-Nine Weeks Ended
	September 28, 2013									September 29, 2012
	Pension			OPEB			Consolidated			Pension			OPEB			Consolidated
	(In millions)
Net periodic pension and OPEB cost:
Service cost - benefits earned during the year	$	11.9		$	2.6		$	14.5		$	12.6		$	2.1		$	14.7
Interest cost on projected benefit obligation	116.9			5.3			122.2			123.8			5.9			129.7
Expected return on plan assets	(132.7		)	—			(132.7		)	(130.8		)	—			(130.8		)
Amortization of prior service cost (benefit)	0.6			(2.7		)	(2.1		)	0.6			(2.7		)	(2.1		)
Amortization of net actuarial loss (gain)	42.4			(0.2		)	42.2			29.4			(0.3		)	29.1
Less: expected participant contributions	(0.9		)	—			(0.9		)	(1.2		)	—			(1.2		)
Net periodic pension and OPEB cost	$	38.2		$	5.0		$	43.2		$	34.4		$	5.0		$	39.4