Supplemental Balance Sheet Information (Tables)

12 Months Ended

Dec. 31, 2018

Supplemental Balance Sheet Information [Abstract]

Trade accounts receivable, net

Trade accounts receivable, net

	As of
(in millions)	December 31, 2018			December 31, 2017
Accounts receivable	$	1,676		$	1,645
Allowance for doubtful accounts	(68		)	(68		)
Allowance for sales returns (1)	—			(30		)
	$	1,608		$	1,548

(1) Due to the adoption of FASB ASC Topic 606 effective January 1, 2018, the allowance for sales returns has been prospectively reclassified from Trade accounts receivable, net to Other current liabilities within the consolidated balance sheets. Prior period balances remain unchanged.

Rollforward of allowances for doubtful accounts

The following is a rollforward of our allowance for doubtful accounts:

	Year Ended December 31,
(in millions)	2018			2017			2016
Beginning balance	$	68		$	73		$	75
Net charges to expenses	19			14			9
Utilization of allowances	(19		)	(18		)	(11		)
Ending balance	$	68		$	68		$	73

Inventories

Inventories

	As of
(in millions)	December 31, 2018		December 31, 2017
Finished goods	$	760	$	685
Work-in-process	100		110
Raw materials	306		284
	$	1,166	$	1,078

Property, plant and equipment, net

Property, plant and equipment, net

	As of
(in millions)	December 31, 2018		December 31, 2017
Land	$	97	$	102
Buildings and improvements	1,100		1,120
Equipment, furniture and fixtures	3,224		3,183
Capital in progress	319		219
	4,740		4,625
Less: accumulated depreciation	2,958		2,928
	$	1,782	$	1,697

Accrued expenses

Accrued expenses

	As of
(in millions)	December 31, 2018		December 31, 2017
Legal reserves	$	712	$	1,176
Payroll and related liabilities	630		591
Accrued contingent consideration	138		36
Other	767		653
	$	2,246	$	2,456

Other long-term liabilities

Other long-term liabilities

	As of
(in millions)	December 31, 2018		December 31, 2017
Accrued income taxes	$	739	$	1,275
Legal reserves	217		436
Accrued contingent consideration	209		133
Other	717		525
	$	1,882	$	2,370