Fair Value Measurements (Details) (USD $) In Millions	3 Months Ended		9 Months Ended
	Oct. 02, 2011	Oct. 03, 2010	Oct. 02, 2011	Oct. 03, 2010
Summary of designated derivatives
Gain/ (Loss) recognized in Accumulated OCI	$ (117)	$ (95)	$ (105)	$ (280)
Gain/ (Loss) reclassified from Accumulated OCI into income	(67)	(90)	(185)	(186)
Gain/ (Loss) recognized in Other income/expense		111	1	(28)
Foreign exchange contracts [Member] | Included in Sales to customer [Member]
Summary of designated derivatives
Gain/ (Loss) recognized in Accumulated OCI	(57)	45	(30)	(39)
Gain/ (Loss) reclassified from Accumulated OCI into income	4	(12)	(6)	(41)
Foreign exchange contracts [Member] | Included in Cost of products sold [Member]
Summary of designated derivatives
Gain/ (Loss) recognized in Accumulated OCI	(58)	(7)	34	(213)
Gain/ (Loss) reclassified from Accumulated OCI into income	(21)	(106)	(127)	(204)
Foreign exchange contracts [Member] | Included in Research and development expense [Member]
Summary of designated derivatives
Gain/ (Loss) recognized in Accumulated OCI	6	(46)	(2)	27
Gain/ (Loss) reclassified from Accumulated OCI into income	(40)	20	(21)	41
Foreign exchange contracts [Member] | Included in Other (income)/expense, net [Member]
Summary of designated derivatives
Gain/ (Loss) recognized in Accumulated OCI	59	(63)		18
Gain/ (Loss) reclassified from Accumulated OCI into income	(4)	9	(7)	8
Foreign exchange contracts [Member] | Included in Other (Income)/Expense Type Two, net [Member]
Summary of designated derivatives
Gain/ (Loss) recognized in Other income/expense	1	18	(1)	(3)
Foreign exchange contracts [Member] | Included in Other (Income)/Expense Type Three, net [Member]
Summary of designated derivatives
Gain/ (Loss) recognized in Other income/expense	(1)	121	2	(33)
Foreign exchange contracts [Member] | Included in Other (Income)/Expense Type Four, net [Member]
Summary of designated derivatives
Gain/ (Loss) recognized in Other income/expense	1	(11)	(1)	5
Foreign exchange contracts [Member] | Other Interest Income Expense Type Six Net [Member]
Summary of designated derivatives
Gain/ (Loss) recognized in Other income/expense	(1)	(17)	1	3
Cross currency interest rate swaps [Member] | Included in Interest (income)/Interest expense, net [Member]
Summary of designated derivatives
Gain/ (Loss) recognized in Accumulated OCI	(67)	(24)	(107)	(73)
Gain/ (Loss) reclassified from Accumulated OCI into income	$ (6)	$ (1)	$ (24)	$ 10