Supplemental Balance Sheet Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Allowance for doubtful accounts
Beginning balance	$ 81	$ 88
Charges to expenses	(2)	3
Utilization of allowances	(4)	(5)
Ending balance	75	86
Trade accounts receivable, net
Accounts receivable	1,322		1,419
Less: allowance for doubtful accounts	(75)		(81)
Less: allowance for sales returns	(30)		(31)
Trade accounts receivable, net	1,217		1,307
Inventories
Finished goods	611		598
Work-in-process	116		90
Raw materials	199		209
Inventories	926		897
Property, plant and equipment, net
Land	81		81
Buildings and improvements	919		917
Equipment, furniture and fixtures	2,492		2,461
Capital in progress	234		211
Property, plant and equipment	3,726		3,670
Less: accumulated depreciation	2,187		2,124
Property, plant and equipment, net	1,539		1,546
Accrued expenses
Legal reserves	98		84
Payroll and related liabilities	370		488
Accrued contingent consideration	228		148
Other	579		628
Accrued expenses	1,275		1,348
Other long-term liabilities
Legal reserves	498		523
Accrued income taxes	1,231		1,283
Accrued contingent consideration	244		353
Other Long-Term Liabilities	425		410
Other long-term liabilities	2,398		2,569
Accrued warranties
Beginning Balance	28	26
Provision	4	4
Settlements/ reversals	(3)	(3)
Ending Balance	29	27
Supplemental Balance Sheet Information (Textuals) [Abstract]
Depreciation expense	$ 65	$ 61