Other Financial Data (Other Income (Expense)) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013
Interest income (expense), net:
Interest expense	$ (34)	$ (38)	$ (64)	$ (68)
Interest income	5	6	10	11
Interest income (expense), net:	(29)	(32)	(54)	(57)
Other:
Investment impairments	0	(2)	0	(2)
Foreign currency loss	(8)	(4)	(10)	(7)
Gains on equity method investments	2	1	2	0
Other	(1)	2	(1)	6
Total Other Income (Expense)	$ (7)	$ (3)	$ (9)	$ (3)