Supplemental Cash Flow Information

12 Months Ended

Dec. 31, 2019

Supplemental Cash Flow Elements

Supplemental Cash Flow Information

NOTE 9. Supplemental Cash Flow Information

(Millions)	2019		2018		2017
Cash income tax payments, net of refunds	$	1,198	$	1,560	$	1,604
Cash interest payments		370		314		199

Cash interest payments include interest paid on debt and finance lease balances. Cash interest payments exclude the cash paid for early debt extinguishment costs. Additional details are described in Note 12.

Individual amounts in the Consolidated Statement of Cash Flows exclude the impacts of acquisitions, divestitures and exchange rate impacts, which are presented separately.

Transactions related to investing and financing activities with significant non-cash components are as follows:

● 3M sold and leased-back, under finance leases, certain recently constructed machinery and equipment in return for municipal securities with certain cities in the United States. In aggregate, the values totaled approximately $9 million in 2019, $13 million in 2018, and $13 million in 2017, as of the transaction date.