Supplemental Balance Sheet Information (Tables)

3 Months Ended

Mar. 31, 2018

Supplemental Balance Sheet Information [Abstract]

Schedule of Restricted Cash and Cash Equivalents [Table Text Block]

Cash, cash equivalents, restricted cash and restricted cash equivalents

	As of
(in millions)	March 31, 2018		December 31, 2017
Cash and cash equivalents	$	287	$	188
Restricted cash included in Other current assets	850		803
Restricted cash included in Other long-term assets	31		26
Total cash, cash equivalents and restricted cash	$	1,168	$	1,017

Trade accounts receivable, net

	As of
(in millions)	March 31, 2018			December 31, 2017
Accounts receivable	$	1,650		$	1,645
Allowance for doubtful accounts	(67		)	(68		)
Allowance for sales returns	—			(30		)
Other sales reserves	(3		)	—
	$	1,580		$	1,548

Rollforward of allowances for doubtful accounts

	Three Months Ended March 31,
(in millions)	2018			2017
Beginning balance	$	68		$	73
Net charges to expenses	4			3
Utilization of allowances	(5		)	(1		)
Ending balance	$	67		$	75

Inventory Disclosure [Text Block]

	As of
(in millions)	March 31, 2018		December 31, 2017
Finished goods	$	717	$	685
Work-in-process	105		110
Raw materials	291		284
	$	1,113	$	1,078

Property, plant and equipment, net

	As of
(in millions)	March 31, 2018			December 31, 2017
Land	$	103		$	102
Buildings and improvements	1,132			1,120
Equipment, furniture and fixtures	3,246			3,183
Capital in progress	215			219
	4,696			4,625
Accumulated depreciation	(2,996		)	(2,928		)
	$	1,700		$	1,697

Schedule of Accrued Liabilities

	As of
(in millions)	March 31, 2018		December 31, 2017
Legal reserves	$	1,255	$	1,176
Payroll and related liabilities	488		591
Accrued contingent consideration	62		36
Other	643		653
	$	2,447	$	2,456

Other long-term liabilities

	As of
(in millions)	March 31, 2018		December 31, 2017
Accrued income taxes	$	1,119	$	1,275
Legal reserves	256		436
Accrued contingent consideration	92		133
Other	787		525
	$	2,254	$	2,370