Supplemental Balance Sheet Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Trade accounts receivable, net
Accounts receivable	$ 1,580		$ 1,580		$ 1,579
Less: allowance for doubtful accounts	(81)		(81)		(73)
Less: allowance for sales returns	(29)		(29)		(34)
Trade accounts receivable, net	1,470		1,470		1,472
Allowance for doubtful accounts
Beginning balance	74	$ 80	73	$ 75
Charges to expenses	9	(1)	14	5
Utilization of allowances	(2)	(4)	(6)	(5)
Ending balance	81	75	81	75
Inventories
Finished goods	674		674		625
Work-in-process	108		108		94
Raw materials	295		295		236
Inventories	1,077		1,077		955
Prepaid Expense and Other Assets, Current
Prepaid Expense	72		72		58
Restricted Cash and Cash Equivalents	449		449		243
Other Assets, Current	124		124		240
prepaid and other current assets	645		645		541
Property, plant and equipment, net
Land	93		93		91
Buildings and improvements	1,056		1,056		981
Equipment, furniture and fixtures	3,139		3,139		2,955
Capital in progress	297		297		338
Property, plant and equipment	4,585		4,585		4,365
Less: accumulated depreciation	2,907		2,907		2,735
Property, plant and equipment, net	1,678		1,678		1,630
Accrued expenses
Legal reserves	1,355		1,355		1,062
Payroll and related liabilities	560		560		572
Business Combination, Contingent Consideration, Liability, Current	28		28		63
Other	608		608		615
Accrued expenses	2,551		2,551		2,312
Other long-term liabilities
Accrued income taxes	842		842		781
Legal reserves	335		335		961
Business Combination, Contingent Consideration, Liability, Noncurrent	53		53		141
Other Accrued Liabilities, Noncurrent	508		508		455
Other long-term liabilities	1,738		1,738		$ 2,338
Accrued warranties
Beginning Balance			22	23
Provision			20	16
Settlements/ reversals			(18)	(19)
Ending Balance	24	20	24	20
Supplemental Balance Sheet Information
Depreciation expense	$ 71	$ 67	$ 198	$ 193