Supplemental Balance Sheet Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Dec. 31, 2011
Allowance for doubtful accounts
Beginning balance	$ 81	$ 83
Net (credits) charges to expenses	9	(19)
Utilization of allowances		(3)
Ending balance	90	61
Trade accounts receivable, net
Accounts receivable	1,443		1,362
Less: allowance for doubtful accounts	(90)		(81)
Less: allowance for sales returns	(37)		(35)
Trade accounts receivable, net	1,316		1,246
Inventories
Finished goods	602		637
Work-in-process	70		71
Raw materials	217		223
Inventories	889		931
Property, plant and equipment, net
Land	111		111
Buildings and improvements	932		923
Equipment, furniture and fixtures	1,968		1,919
Capital in progress	212		230
Property, plant and equipment	3,223		3,183
Less: accumulated depreciation	1,554		1,513
Property, plant and equipment, net	1,669		1,670
Accrued expenses
Legal reserves	137		129
Payroll and related liabilities	371		466
Accrued contingent consideration	52		37
Other	620		695
Accrued expenses	1,180		1,327
Other long-term liabilities
Legal reserves	181		170
Accrued income taxes	1,112		1,095
Accrued contingent consideration	313		321
Other Long-Term Liabilities	382		422
Other long-term liabilities	1,988		2,008
Accrued warranties
Beginning Balance	30	43
Provision		5
Settlements/ reversals	(7)	(7)
Ending Balance	23	41
Supplemental Balance Sheet Information (Textuals) [Abstract]
Bad debt expense reversed		20
Depreciation expense	$ 66	$ 69