Supplemental cash flow (Tables)

3 Months Ended

Mar. 31, 2022

Supplemental cash flow

Schedule of supplemental cash flow

	Three Months Ended March 31,
	2022		2021
Supplemental cash flow information:
Cash paid for interest	$	15	$	27
Income tax payments, net of (refunds)		(8)		—
Supplemental non-cash investing and financing activities:
Accrued capital expenditures		19		13