CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Assets
Cash and cash equivalents	$ 464	$ 135
Accounts receivable, net of allowance for doubtful accounts of $17 and $15 as of March 31, 2019 and December 31, 2018, respectively	1,079	1,012
Inventories	98	99
Prepaid expenses and other current assets	137	144
Total current assets	1,778	1,390
Property, plant and equipment, net	1,277	1,288
Operating lease right-of-use assets	497	0
Goodwill	6,605	6,563
Intangible assets, net	1,200	1,207
Investment in equity method investees	454	436
Other assets	126	119
Total assets	11,937	11,003
Liabilities and Stockholders' Equity
Accounts payable and accrued expenses	1,029	1,021
Current portion of long-term debt	1,108	464
Current portion of long-term operating lease liabilities	145	0
Total current liabilities	2,282	1,485
Long-term debt	3,131	3,429
Long-term operating lease liabilities	393	0
Other liabilities	713	745
Commitments and contingencies
Redeemable noncontrolling interest	77	77
Quest Diagnostics stockholders’ equity:
Common stock, par value $0.01 per share; 600 shares authorized as of both March 31, 2019 and December 31, 2018; 217 shares issued as of both March 31, 2019 and December 31, 2018	2	2
Additional paid-in capital	2,671	2,667
Retained earnings	7,694	7,602
Accumulated other comprehensive loss	(55)	(59)
Treasury stock, at cost; 83 shares and 82 shares as of March 31, 2019 and December 31, 2018, respectively	(5,022)	(4,996)
Total Quest Diagnostics stockholders' equity	5,290	5,216
Noncontrolling interests	51	51
Total stockholders' equity	5,341	5,267
Total liabilities and stockholders' equity	$ 11,937	$ 11,003

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

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Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.