Cash Flow Information (Tables)

12 Months Ended

Dec. 31, 2019

Supplemental Cash Flow Information [Abstract]

Schedule of Cash Flow Information

Supplemental Cash Flow Information

	Millions of Dollars
	2019		2018	2017
Cash Payments (Receipts)
Interest	$	426	465	421
Income taxes*	955		984	(257	)

* 2017 reflected a net cash refund position; cash payments for income taxes were $102 million in 2017.