Supplemental cash flow (Tables)

3 Months Ended

Mar. 31, 2020

Supplemental cash flow

Schedule of supplemental cash flow

	Three Months Ended
		March 31,
	2020		2019
Supplemental cash flow information:
Cash paid for interest	$	51	$	79
Supplemental non-cash investing and financing activities:
Accrued capital expenditures		19		13