NOTE F – SUPPLEMENTAL BALANCE SHEET INFORMATION

Components of selected captions in our accompanying unaudited condensed consolidated balance sheets are as follows:

Cash, cash equivalents, restricted cash and restricted cash equivalents



	As of
(in millions)	March 31, 2019		December 31, 2018
Cash and cash equivalents	$	139	$	146
Restricted cash and restricted cash equivalents in Other current assets:
Restricted cash related to the proposed BTG Acquisition (1)	2,302		—
Other restricted cash and restricted cash equivalents	422		655
	2,724		655
Restricted cash equivalents in Other long-term assets	33		27
	$	2,896	$	829


(1)	Refer to Note B – Acquisitions and Strategic Investments and Note E – Borrowings and Credit Arrangements for additional information regarding the proposed BTG Acquisition.

Trade accounts receivable, net



	As of
(in millions)	March 31, 2019			December 31, 2018
Accounts receivable	$	1,693		$	1,676
Allowance for doubtful accounts	(72		)	(68		)
	$	1,621		$	1,608

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

Inventories

Property, plant and equipment, net



	As of
(in millions)	March 31, 2019		December 31, 2018
Land	$	96	$	97
Buildings and improvements	1,112		1,100
Equipment, furniture and fixtures	3,276		3,224
Capital in progress	292		319
	4,777		4,740
Less: accumulated depreciation	2,994		2,958
	$	1,782	$	1,782

Depreciation expense was $69 million for the first quarter of 2019 and $68 million for the first quarter of 2018.

Accrued expenses



	As of
(in millions)	March 31, 2019		December 31, 2018
Legal reserves	$	527	$	712
Payroll and related liabilities	530		630
Rebates	232		229
Contingent consideration	159		138
Other	515		538
	$	1,963	$	2,246

Other long-term liabilities