Supplemental Balance Sheet Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Allowance for doubtful accounts
Beginning balance	$ 125	$ 119	$ 116	$ 125
Net (credits) charges to expenses		5	14	11
Utilization of allowances		(12)	(7)	(13)
Ending balance		112	119	116
Trade accounts receivable, net
Accounts receivable		1,419	1,336
Less: allowance for doubtful accounts		(81)	(88)
Less: allowance for sales returns		(31)	(31)
Trade accounts receivable, net		1,307	1,217
Inventories
Finished goods		598	598
Work-in-process		90	70
Raw materials		209	216
Inventories		897	884
Property, plant and equipment, net
Land		81	81
Buildings and improvements		917	873
Equipment, furniture and fixtures		2,461	2,348
Capital in progress		211	218
Property, plant and equipment		3,670	3,520
Less: accumulated depreciation		2,124	1,956
Property, plant and equipment, net		1,546	1,564	1,670
Accrued expenses
Legal reserves		84	100
Payroll and related liabilities		488	452
Accrued contingent consideration		148	120
Other		628	612
Accrued expenses		1,348	1,284
Other long-term liabilities
Legal reserves		523	391
Accrued income taxes		1,283	1,215
Accrued contingent consideration		353	543
Other Long-Term Liabilities		410	398
Other long-term liabilities		2,569	2,547
Supplemental Balance Sheet Information (Textuals) [Abstract]
Bad debt expense reversed	20
Allowance for Doubtful Accounts [Member]
Allowance for doubtful accounts
Beginning balance	83	88	81	83
Net (credits) charges to expenses		5	14	11
Utilization of allowances		(12)	(7)	(13)
Ending balance		$ 81	$ 88	$ 81