Supplemental Balance Sheet Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Trade accounts receivable, net
Accounts receivable	$ 1,564		$ 1,564		$ 1,591
Less: allowance for doubtful accounts	(74)		(74)		(73)
Less: allowance for sales returns	(46)		(46)		(46)
Trade accounts receivable, net	1,444		1,444		1,472
Allowance for doubtful accounts
Beginning balance	75	$ 80	73	$ 75
Charges to expenses	2	3	5	7
Utilization of allowances	(3)	(3)	(4)	(2)
Ending balance	74	80	74	80
Inventories
Finished goods	652		652		625
Work-in-process	97		97		94
Raw materials	274		274		236
Inventories	1,023		1,023		955
Prepaid Expense and Other Assets, Current
Prepaid Expense	91		91		58
Restricted Cash and Cash Equivalents	251		251		243
Other Assets, Current	143		143		240
prepaid and other current assets	485		485		541
Property, plant and equipment, net
Land	92		92		91
Buildings and improvements	1,043		1,043		981
Equipment, furniture and fixtures	3,081		3,081		2,955
Capital in progress	305		305		338
Property, plant and equipment	4,521		4,521		4,365
Less: accumulated depreciation	2,870		2,870		2,735
Property, plant and equipment, net	1,651		1,651		1,630
Accrued expenses
Legal reserves	1,152		1,152		1,062
Payroll and related liabilities	486		486		572
Business Combination, Contingent Consideration, Liability, Current	39		39		63
Other	561		561		615
Accrued expenses	2,238		2,238		2,312
Other long-term liabilities
Accrued income taxes	797		797		781
Legal reserves	627		627		961
Business Combination, Contingent Consideration, Liability, Noncurrent	63		63		141
Other Accrued Liabilities, Noncurrent	485		485		455
Other long-term liabilities	1,972		1,972		$ 2,338
Accrued warranties
Beginning Balance			22	23
Provision			13	10
Settlements/ reversals			(13)	(13)
Ending Balance	22	20	22	20
Supplemental Balance Sheet Information
Depreciation expense	$ 65	$ 62	$ 127	$ 126