Fair Value Measurements (Details) - Designated as Hedging Instrument - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jul. 03, 2016	Jun. 28, 2015	Jul. 03, 2016	Jun. 28, 2015
Summary of designated derivatives
Gain/ (Loss) recognized in Accumulated OCI	[1]	$ (250)	$ 61	$ (441)	$ (134)
Gain/ (Loss) reclassified from Accumulated OCI into income	[1]	10	43	(112)	75
Gain/ (Loss) recognized in Other income/expense	[2]	(3)	14	(10)	13
Foreign exchange contracts | Sales to customers
Summary of designated derivatives
Gain/ (Loss) recognized in Accumulated OCI	[1],[3]	(27)	37	(27)	(55)
Gain/ (Loss) reclassified from Accumulated OCI into income	[1],[3]	(3)	(30)	(21)	(71)
Gain/ (Loss) recognized in Other income/expense	[2],[3]	0	(1)	0	(2)
Foreign exchange contracts | Cost of products sold
Summary of designated derivatives
Gain/ (Loss) recognized in Accumulated OCI	[1],[3]	(178)	52	(222)	(116)
Gain/ (Loss) reclassified from Accumulated OCI into income	[1],[3]	13	47	(8)	116
Gain/ (Loss) recognized in Other income/expense	[2],[3]	(2)	14	(6)	14
Foreign exchange contracts | Research and development expense
Summary of designated derivatives
Gain/ (Loss) recognized in Accumulated OCI	[1],[3]	12	(7)	(95)	(3)
Gain/ (Loss) reclassified from Accumulated OCI into income	[1],[3]	(1)	7	(96)	(9)
Gain/ (Loss) recognized in Other income/expense	[2],[3]	(1)	0	(1)	0
Foreign exchange contracts | Other (income) expense, net
Summary of designated derivatives
Gain/ (Loss) recognized in Accumulated OCI	[1],[3],[4]	(54)	(28)	(106)	69
Gain/ (Loss) reclassified from Accumulated OCI into income	[1],[3],[4]	(6)	19	(2)	42
Gain/ (Loss) recognized in Other income/expense	[2],[3],[4]	0	1	(3)	1
Cross currency interest rate swaps | Interest (income)/Interest expense, net
Summary of designated derivatives
Gain/ (Loss) recognized in Accumulated OCI	[1],[5]	(3)	7	9	(29)
Gain/ (Loss) reclassified from Accumulated OCI into income	[1],[5]	7	0	15	(3)
Gain/ (Loss) recognized in Other income/expense	[2],[5]	$ 0	$ 0	$ 0	$ 0

[1] Effective portion

[2] Ineffective portion

[3] Forward foreign exchange contracts

[4] Includes equity collar contracts

[5] Cross currency interest rate swaps