Inventories (Notes)

6 Months Ended

Jun. 30, 2020

Inventory Disclosure [Abstract]

Inventories

. Inventories

Inventories were as follows: 

	June 30, 2020		December 31, 2019
	(millions)
Natural gas	$	18	$	19
NGLs	10		27
Total inventories	$	28	$	46

We recognize lower of cost or net realizable value adjustments when the carrying value of our inventories exceeds their estimated market value. These non-cash charges are a component of purchases and related costs in the condensed consolidated statements of operations. We recognized $2 million and $6 million for the three and six months ended June 30, 2020, respectively, and $3 million and $8 million of lower of cost or net realizable value adjustments during the three and six months ended June 30, 2019, respectively.