Pension And Postretirement Benefits (Tables)

6 Months Ended

Jan. 27, 2013

Defined Benefit Plan Disclosure [Line Items]

Schedule Of Components Of Benefit Expense

	Three Months Ended												Six Months Ended
	Pension						Postretirement						Pension						Postretirement
	January 27, 2013			January 29, 2012			January 27, 2013			January 29, 2012			January 27, 2013			January 29, 2012			January 27, 2013			January 29, 2012
Service cost	$	14		$	13		$	1		$	1		$	28		$	27		$	2		$	2
Interest cost	27			30			4			5			54			61			8			9
Expected return on plan assets	(45		)	(44		)	—			—			(89		)	(89		)	—			—
Amortization of prior service credit	(1		)	—			(1		)	(1		)	(1		)	—			(1		)	(1		)
Recognized net actuarial loss	27			19			4			2			54			37			7			4
Curtailment loss	3			—			—			—			3			—			—			—
Net periodic benefit expense	$	25		$	18		$	8		$	7		$	49		$	36		$	16		$	14