CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Assets
Cash and cash equivalents	$ 872	$ 1,158
Accounts receivable, net of allowance for credit losses of $31 and $28 as of December 31, 2021 and 2020, respectively	1,438	1,520
Inventories	208	223
Prepaid expenses and other current assets	223	157
Total current assets	2,741	3,058
Property, plant and equipment, net	1,707	1,627
Operating lease right-of-use assets	597	604
Goodwill	7,095	6,873
Intangible assets, net	1,167	1,167
Investments in equity method investees	141	521
Other assets	163	176
Total assets	13,611	14,026
Liabilities and Stockholders' Equity
Accounts payable and accrued expenses	1,600	1,633
Less: Current portion of long-term debt	2	2
Current portion of long-term operating lease liabilities	151	141
Total current liabilities	1,753	1,776
Long-term debt	4,010	4,013
Long-term operating lease liabilities	494	499
Other liabilities	792	847
Commitments and contingencies
Redeemable noncontrolling interest	79	82
Quest Diagnostics stockholders’ equity:
Common stock, par value $0.01 per share; 600 shares authorized as of both December 31, 2021 and 2020; 162 and 217 shares issued as of December 31, 2021 and 2020, respectively	2	2
Additional paid-in capital	2,260	2,841
Retained earnings	7,649	9,303
Accumulated other comprehensive (loss) income	(14)	(21)
Treasury stock, at cost; 43 and 84 shares as of December 31, 2021 and 2020, respectively	(3,453)	(5,366)
Total Quest Diagnostics stockholders' equity	6,444	6,759
Noncontrolling interests	39	50
Total stockholders' equity	6,483	6,809
Total liabilities and stockholders' equity	$ 13,611	$ 14,026