Accounts Receivable And Accrued Revenues

12 Months Ended

Dec. 31, 2017

Accounts Receivable And Accrued Revenues [Abstract]

Loans, Notes, Trade and Other Receivables Disclosure [Text Block]

7.Accounts Receivable and Accrued Revenues

As at December 31		2017		2016
Trade Receivables and Accrued Revenues
Oil, NGLs and natural gas	$	425	$	394
Midstream and marketing		284		161
Derivative financial instruments		3		4
Corporate and other		9		81
Total Trade Receivables and Accrued Revenues		721		640
Prepaids		21		18
Deposits and Other		37		11
		779		669
Allowance for Doubtful Accounts		(5)		(6)
	$	774	$	663

Encana’s trade receivables balance primarily consists of oil, NGLs and natural gas sales receivables, marketing revenues and joint interest receivables. Trade receivables are non-interest bearing. In determining the recoverability of trade receivables, the Company considers the age of the outstanding receivable and the credit worthiness of the counterparties. The Company charges uncollectible trade receivables to the allowance for doubtful accounts when it is determined no longer collectible. See Note 22 for further information about credit risk.