Employee and Retiree Benefits (Tables)

12 Months Ended

Aug. 30, 2014

Compensation and Retirement Disclosure [Abstract]

Schedule of Amounts Recognized in Balance Sheet [Table Text Block]

Postretirement health care and deferred compensation benefits are as follows:

(In thousands)	August 30, 2014			August 31, 2013
Postretirement health care benefit cost	$	36,930		$	36,244
Non-qualified deferred compensation	21,014			22,366
Executive share option plan liability	5,628			6,959
SERP benefit liability	2,974			2,876
Executive deferred compensation	213			105
Officer stock-based compensation	627			543
Total postretirement health care and deferred compensation benefits	67,386			69,093
Less current portion(1)	(4,575		)	(5,019		)
Long-term postretirement health care and deferred compensation benefits(2)	$	62,811		$	64,074

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

Changes in our postretirement health care liability are as follows:

(In thousands)	August 30, 2014			August 31, 2013
Balance at beginning of year	$	36,244		$	45,132
Interest cost	1,540			1,508
Service cost	393			574
Net benefits paid	(1,035		)	(1,109		)
Actuarial loss (gain)	3,368			(5,572		)
Plan amendment	(3,580		)	(4,289		)
Balance at end of year	$	36,930		$	36,244

Schedule of Net Benefit Costs [Table Text Block]

Net periodic postretirement benefit income for the past three fiscal years consisted of the following components:

	Year Ended
(In thousands)	August 30, 2014			August 31, 2013			August 25, 2012
Interest cost	$	1,540		$	1,508		$	1,849
Service cost	393			574			539
Amortization of prior service benefit	(5,650		)	(5,170		)	(4,592		)
Amortization of net actuarial loss	1,077			1,603			1,029
Net periodic postretirement benefit income	$	(2,640	)	$	(1,485	)	$	(1,175	)

Schedule of Net Periodic Benefit Cost Not yet Recognized [Table Text Block]

Amounts not yet recognized in net periodic benefit cost and included in accumulated other comprehensive income (before taxes) are as follows:

(In thousands)	August 30, 2014			August 31, 2013
Prior service credit	$	(14,857	)	$	(16,926	)
Net actuarial loss	17,190			14,899
Accumulated other comprehensive income (loss)	$	2,333		$	(2,027	)

Schedule of Expected Benefit Payments [Table Text Block]

Expected future benefit payments for postretirement health care for the next ten yearsare as follows:

(In thousands)		Amount
Year:	2015	$	1,164
	2016	1,306
	2017	1,447
	2018	1,587
	2019	1,723
	2020-2024	10,336
	Total	$	17,563

Investment in Life Insurance [Table Text Block]

To assist in funding the deferred compensation and SERP liabilities, we have invested in COLI policies. The cash surrender value of these policies is presented as investment in life insurance in the accompanying balance sheets and consists of the following:

(In thousands)	August 30, 2014			August 31, 2013
Cash value	$	55,982		$	55,484
Borrowings	(30,856		)	(30,433		)
Investment in life insurance	$	25,126		$	25,051