Fair Value Measurements (Details) (Designated as Hedging Instrument, USD $) In Millions, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 29, 2014		Jun. 30, 2013		Jun. 29, 2014		Jun. 30, 2013
Summary of designated derivatives
Gain/ (Loss) recognized in Accumulated OCI	$ (163)	[1]	$ 178	[1]	$ (153)	[1]	$ 183	[1]
Gain/ (Loss) reclassified from Accumulated OCI into income	74	[1]	27	[1]	127	[1]	9	[1]
Gain/ (Loss) recognized in Other income/expense	0	[2]	5	[2]	(2)	[2]	0	[2]
Foreign exchange contracts | Sales to customers
Summary of designated derivatives
Gain/ (Loss) recognized in Accumulated OCI	4	[1],[3]	34	[1],[3]	(30)	[1],[3]	(3)	[1],[3]
Gain/ (Loss) reclassified from Accumulated OCI into income	21	[1],[3]	10	[1],[3]	8	[1],[3]	7	[1],[3]
Gain/ (Loss) recognized in Other income/expense	1	[2],[3]	0	[2],[3]	1	[2],[3]	0	[2],[3]
Foreign exchange contracts | Cost of products sold
Summary of designated derivatives
Gain/ (Loss) recognized in Accumulated OCI	(167)	[1],[3]	173	[1],[3]	(150)	[1],[3]	178	[1],[3]
Gain/ (Loss) reclassified from Accumulated OCI into income	84	[1],[3]	38	[1],[3]	159	[1],[3]	21	[1],[3]
Gain/ (Loss) recognized in Other income/expense	(2)	[2],[3]	6	[2],[3]	(2)	[2],[3]	4	[2],[3]
Foreign exchange contracts | Research and development expense
Summary of designated derivatives
Gain/ (Loss) recognized in Accumulated OCI	(10)	[1],[3]	(17)	[1],[3]	3	[1],[3]	(7)	[1],[3]
Gain/ (Loss) reclassified from Accumulated OCI into income	(18)	[1],[3]	(14)	[1],[3]	(13)	[1],[3]	(17)	[1],[3]
Gain/ (Loss) recognized in Other income/expense	0	[2],[3]	0	[2],[3]	(1)	[2],[3]	(3)	[2],[3]
Foreign exchange contracts | Other (income)/expense, net
Summary of designated derivatives
Gain/ (Loss) recognized in Accumulated OCI	12	[1],[3]	(30)	[1],[3]	14	[1],[3]	7	[1],[3]
Gain/ (Loss) reclassified from Accumulated OCI into income	(12)	[1],[3]	(5)	[1],[3]	(21)	[1],[3]	2	[1],[3]
Gain/ (Loss) recognized in Other income/expense	1	[2],[3]	(1)	[2],[3]	0	[2],[3]	(1)	[2],[3]
Cross currency interest rate swaps | Interest (income)/Interest expense, net
Summary of designated derivatives
Gain/ (Loss) recognized in Accumulated OCI	(2)	[1],[4]	18	[1],[4]	10	[1],[4]	8	[1],[4]
Gain/ (Loss) reclassified from Accumulated OCI into income	(1)	[1],[4]	(2)	[1],[4]	(6)	[1],[4]	(4)	[1],[4]
Gain/ (Loss) recognized in Other income/expense	$ 0	[2],[4]	$ 0	[2],[4]	$ 0	[2],[4]	$ 0	[2],[4]

[1] Effective portion

[2] Ineffective portion

[3] Forward foreign exchange contracts

[4] Cross currency interest rate swaps