Guarantees (Tables)

9 Months Ended

Oct. 25, 2015

Notes to financial statements [Abstract]

Guarantees

	Three Months Ended						Nine Months Ended
	October 25,			October 26,			October 25,			October 26,
	2015			2014			2015			2014
	(In millions)
Balance at beginning of period	$	28		$	8		$	8		$	8
Additions	—			1			22			4
Deductions	(15		)	(2		)	(17		)	(5		)
Balance at end of period	$	13		$	7		$	13		$	7