Restructuring and Other Special Charges (Schedule of Restructuring Activities and Related Liabilities) (Details) $ in Millions	6 Months Ended
	Jun. 25, 2016 USD ($)
2015 Restructuring Plan
Restructuring Reserve [Roll Forward]
Balance as of beginning of period	$ 14
Charges (reversals), net	(2)
Cash payments	(7)
Balance as of end of period	5
2015 Restructuring Plan | Severance and related benefits
Restructuring Reserve [Roll Forward]
Balance as of beginning of period	14
Charges (reversals), net	(2)
Cash payments	(7)
Balance as of end of period	5
2015 Restructuring Plan | Other exit related costs
Restructuring Reserve [Roll Forward]
Balance as of beginning of period	0
Charges (reversals), net	0
Cash payments	0
Balance as of end of period	0
2014 Restructuring Plan
Restructuring Reserve [Roll Forward]
Balance as of beginning of period	20
Charges (reversals), net	(8)
Cash payments	(3)
Balance as of end of period	9
2014 Restructuring Plan | Severance and related benefits
Restructuring Reserve [Roll Forward]
Balance as of beginning of period	5
Charges (reversals), net	(1)
Cash payments	(1)
Balance as of end of period	3
2014 Restructuring Plan | Other exit related costs
Restructuring Reserve [Roll Forward]
Balance as of beginning of period	15
Charges (reversals), net	(7)
Cash payments	(2)
Balance as of end of period	$ 6