Exit Cost - Transportation Commitments (Tables)

12 Months Ended

Dec. 31, 2019

Commitments and Contingencies Disclosure [Abstract]

Summary of Financial Commitments

Exit Costs Reconciliation of accrued exit costs at December 31, 2019 is as follows:

	December 31,
(millions)	2019			2018
Balance at Beginning of Period	$	80		$	90
Exit Cost Accrual(1)	88			—
Payments, Net of Accretion	(5		)	(10		)
Balance at End of Period	$	163		$	80
Less Current Portion Included in Other Current Liabilities	34			13
Long-term Portion Included in Other Noncurrent Liabilities	$	129		$	67

⁽¹⁾  Amount includes $92 million exit cost for the permanent assigned discussed above, offset by a gain of $4 million.

Revenues and expenses associated with these long-term financial commitments, including mitigation activities discussed above, were as follows:

	Year Ended December 31,
(millions)	2019		2018		2017
Sales of Purchased Gas	$	90	$	113	$	—
Cost of Purchased of Gas	85		108		—
Utilized Firm Transportation Expense	57		29		—
Unutilized Firm Transportation Expense	1		3		—
Cost of Purchased Gas, Total	$	143	$	140	$	—