SUPPLEMENTAL CASH FLOW & OTHER DATA

12 Months Ended

Dec. 31, 2018

Supplemental cash flow and other data for the years ended December 31, 2018, 2017 and 2016 was as follows:



	2018			2017			2016

Depreciation expense	$	219		$	196		$	177
Amortization expense	90			74			72
Depreciation and amortization expense	$	309		$	270		$	249

Interest expense	$	(169	)	$	(153	)	$	(144	)
Interest income	2			2			1
Interest expense, net	$	(167	)	$	(151	)	$	(143	)

Interest paid	$	174		$	159		$	148
Income taxes paid	$	84		$	243		$	361

Assets acquired under capital leases	$	1		$	7		$	—
Accounts payable associated with capital expenditures	$	11		$	26		$	9
Accounts payable associated with purchases of treasury stock	$	3		$	—		$	—
Dividends payable	$	71		$	61		$	62

Businesses acquired:
Fair value of assets acquired	$	453		$	657		$	139
Fair value of liabilities assumed	7			58			—
Fair value of net assets acquired	446			599			139
Merger consideration paid (payable), net	(19		)	(6		)	—
Cash paid for business acquisitions	427			593			139
Less: Cash acquired	6			12			—
Business acquisitions, net of cash acquired	$	421		$	581		$	139