Other Financial Data (Other Income (Expense)) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 03, 2015	Sep. 27, 2014	Oct. 03, 2015	Sep. 27, 2014
Interest income (expense), net:
Interest expense	$ (47)	$ (38)	$ (132)	$ (102)
Interest income	4	7	10	17
Interest income (expense), net:	(43)	(31)	(122)	(85)
Other:
Loss from the extinguishment of long-term debt	0	(37)	0	(37)
Investment impairments	0	0	(3)	0
Foreign currency gain (loss)	(29)	10	(23)	2
Gain (loss) on derivative instruments	25	(6)	13	(8)
Gains on equity method investments	2	11	6	13
Other	1	(4)	4	(4)
Total Other Income (Expense)	$ (1)	$ (26)	$ (3)	$ (34)