Inventories

Inventories consisted of the following:



	June 30 2015			December 31 2014
Long-term contracts in progress		$14,872			$13,381
Commercial aircraft programs	56,867			55,220
Commercial spare parts, used aircraft, general stock materials and other	6,585			7,421
Inventory before advances and progress billings	78,324			76,022
Less advances and progress billings	(29,296		)	(29,266		)
Total		$49,028			$46,756

Long-term contracts in progress includes Delta launch program inventory that is being sold at cost to United Launch Alliance (ULA) under an inventory supply agreement that terminates on March 31, 2021. At June 30, 2015, the inventory balance was $115 (net of advances of $338) and $154 (net of advances of $322) at December 31, 2014. At June 30, 2015, $227 of this inventory related to unsold launches. See Note 10.

Capitalized precontract costs of $439 and $1,281 at June 30, 2015 and December 31, 2014, are included in inventories.

At June 30, 2015 and December 31, 2014, commercial aircraft programs inventory included the following amounts related to the 787 program: $35,212 and $33,163 of work in process (including deferred production costs of $27,732 and $26,149), $2,294 and $2,257 of supplier advances, and $3,906 and $3,801 of unamortized tooling and other non-recurring costs. At June 30, 2015, $22,379 of 787 deferred production costs, unamortized tooling and other non-recurring costs are expected to be recovered from units included in the program accounting quantity that have firm orders and $9,259 is expected to be recovered from units included in the program accounting quantity that represent expected future orders.

At June 30, 2015 and December 31, 2014, commercial aircraft programs inventory included the following amounts related to the 747 program: $1,787 and $1,741 of deferred production costs, net of previously recorded reach-forward losses, and $426 and $476 of unamortized tooling costs. At June 30, 2015, $1,019 of 747 deferred production and unamortized tooling costs are expected to be recovered from units included in the program accounting quantity that have firm orders and $1,194 is expected to be recovered from units included in the program accounting quantity that represent expected future orders.

Commercial aircraft programs inventory included amounts credited in cash or other consideration (early issue sales consideration) to airline customers totaling $3,327 and $3,341 at June 30, 2015 and December 31, 2014.

Used aircraft in inventories at Commercial Airplanes totaled $232 and $275 at June 30, 2015 and December 31, 2014.