SUPPLEMENTAL CASH FLOW AND OTHER DATA

12 Months Ended

Dec. 31, 2022

Supplemental Cash Flow Elements [Abstract]

Supplemental cash flow and other data for the years ended December 31, 2022, 2021 and 2020 was as follows:


	2022		2021		2020

Depreciation expense	$	317	$	305	$	258
Amortization expense	120		103		103
Depreciation and amortization expense	$	437	$	408	$	361

Interest expense	$	(148)	$	(152)	$	(166)
Interest income	10		1		3
Interest expense, net	$	(138)	$	(151)	$	(163)

Interest paid	$	156	$	159	$	201
Income taxes paid	$	283	$	709	$	360

Accounts payable associated with capital expenditures	$	38	$	26	$	46
Accounts payable associated with purchases of treasury stock	$	—	$	23	$	—
Dividend payable	$	74	$	74	$	76

Dividends received from equity method investees	$	61	$	60	$	54

Businesses acquired:
Fair value of assets acquired	$	182	$	364	$	368
Fair value of liabilities assumed	16		18		17
Fair value of net assets acquired	166		346		351
Merger consideration payable	(18)		(15)		—
Cash paid for business acquisitions	148		331		351
Less: Cash acquired	4		—		21
Business acquisitions, net of cash acquired	$	144	$	331	$	330


	2022		2021		2020
Leases:
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	185	$	185	$	185
Operating cash flows from finance leases	$	1	$	2	$	3
Financing cash flows from finance leases	$	1	$	2	$	3
Leased assets obtained in exchange for new operating lease liabilities	$	154	$	150	$	219

During the year ended December 31, 2022, the Company amended a real estate lease and, based on the updated terms, the classification of the lease changed from a finance lease to an operating lease. As a result, the Company recorded a $31 million operating lease right-of-use asset.

During the years ended December 31, 2022, 2021 and 2020, costs associated with donations, contributions, and other financial support through Quest for Health Equity, the Company's initiative with the Quest Diagnostics Foundation to reduce health disparities in underserved communities, were $93 million, $16 million and $2 million, respectively. Such amounts are included in selling, general and administrative expenses in the Company's consolidated statement of operations. Costs incurred during the year ended December 31, 2022 will be donated and contributed over several years.