Supplemental Disclosures to the Consolidated Statements of Cash Flows

The following schedule provides additional information concerning acquisitions, interest and income taxes paid for the nine-month periods ended September 30, 2018 and 2017.



(In millions)	2018			2017
Assets acquired, excluding cash	$	679		$	852
Liabilities assumed	(35		)	(129		)
Contingent/deferred purchase consideration	(108		)	(94		)
Net cash outflow for current year acquisitions	$	536		$	629



(In millions)	2018		2017
Interest paid	$	225	$	174
Income taxes paid, net of refunds	$	455	$	406

The classification of contingent consideration in the statement of cash flows is determined by whether the payment was part of the initial liability established on the acquisition date (financing) or an adjustment to the acquisition date liability (operating).

The following amounts are included in the consolidated statements of cash flows as a financing activity. The Company paid deferred and contingent consideration of $106 million for the nine months ended September 30, 2018. This consisted of deferred purchase consideration related to prior years' acquisitions of $59 million and contingent consideration of $47 million. For the nine months ended September 30, 2017, the Company paid deferred and contingent consideration of $127 million, consisting of deferred purchase consideration related to prior years' acquisitions of $47 million and contingent consideration of $80 million.

The following amounts are included in the operating section of the consolidated statements of cash flows. For the nine months ended September 30, 2018, the Company recorded an expense for adjustments to contingent consideration liabilities of $19 million and made contingent consideration payments of $29 million. For the nine months ended September 30, 2017, the Company recorded a net credit for adjustments to contingent consideration liabilities of $3 million and made contingent consideration payments of $27 million.

The Company had non-cash issuances of common stock under its share-based payment plan of $129 million and $88 million for the nine months ended September 30, 2018 and 2017, respectively. The Company recorded stock-based compensation expense for equity awards related to restricted stock units, performance stock units and stock options of $146 million and $111 million for the nine-month periods ended September 30, 2018 and 2017, respectively.