Fair Value Measurements (Details) (USD $) In Millions	3 Months Ended		6 Months Ended
	Jul. 03, 2011	Jul. 04, 2010	Jul. 03, 2011	Jul. 04, 2010
Summary of designated derivatives
Gain/ (Loss) recognized in Accumulated OCI	$ 2	$ (158)	$ 12	$ (185)
Gain/ (Loss) reclassified from Accumulated OCI into income	(40)	(54)	(118)	(96)
Gain/ (Loss) recognized in Other income/expense	4	(133)	1	(139)
Foreign exchange contracts [Member] | Included in Sales to customer [Member]
Summary of designated derivatives
Gain/ (Loss) recognized in Accumulated OCI		(53)	27	(84)
Gain/ (Loss) reclassified from Accumulated OCI into income		(9)	(10)	(29)
Foreign exchange contracts [Member] | Included in Cost of products sold [Member]
Summary of designated derivatives
Gain/ (Loss) recognized in Accumulated OCI	12	(102)	92	(206)
Gain/ (Loss) reclassified from Accumulated OCI into income	(44)	(76)	(106)	(98)
Foreign exchange contracts [Member] | Included in Research and development expense [Member]
Summary of designated derivatives
Gain/ (Loss) recognized in Accumulated OCI	28	44	(8)	73
Gain/ (Loss) reclassified from Accumulated OCI into income	18	20	19	21
Foreign exchange contracts [Member] | Included in Other (income)/expense, net [Member]
Summary of designated derivatives
Gain/ (Loss) recognized in Accumulated OCI	(7)	35	(59)	81
Gain/ (Loss) reclassified from Accumulated OCI into income	2		(3)	(1)
Foreign exchange contracts [Member] | Included in Other (Income)/Expense Type Two, net [Member]
Summary of designated derivatives
Gain/ (Loss) recognized in Other income/expense		(20)	(2)	(21)
Foreign exchange contracts [Member] | Included in Other (Income)/Expense Type Three, net [Member]
Summary of designated derivatives
Gain/ (Loss) recognized in Other income/expense	6	(149)	3	(154)
Foreign exchange contracts [Member] | Included in Other (Income)/Expense Type Four, net [Member]
Summary of designated derivatives
Gain/ (Loss) recognized in Other income/expense	(2)	16	(2)	16
Foreign exchange contracts [Member] | Other Interest Income Expense Type Six Net [Member]
Summary of designated derivatives
Gain/ (Loss) recognized in Other income/expense		20	2	20
Cross currency interest rate swaps [Member] | Included in Interest (income)/Interest expense, net [Member]
Summary of designated derivatives
Gain/ (Loss) recognized in Accumulated OCI	(31)	(82)	(40)	(49)
Gain/ (Loss) reclassified from Accumulated OCI into income	$ (16)	$ 11	$ (18)	$ 11