Inventories

6 Months Ended

Jun. 30, 2019

Inventories consisted of the following:



	June 30 2019		December 31 2018
Long-term contracts in progress		$857		$2,129
Commercial aircraft programs	58,691		52,753
Commercial spare parts, used aircraft, general stock materials and other	8,944		7,685
Total		$68,492		$62,567

Long-Term Contracts in Progress

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. The inventory balance was $193 and $227 at June 30, 2019 and December 31, 2018. See indemnifications to ULA in Note 12.

Included in inventories are capitalized precontract costs of $727 at June 30, 2019 and $644 at December 31, 2018 primarily related to the KC-46A Tanker. See Note 11.

Commercial Aircraft Programs

At June 30, 2019 and December 31, 2018, commercial aircraft programs inventory included the following amounts related to the 787 program: $26,750 and $27,852 of work in process (including deferred production costs of $20,969 and $22,967), $2,323 and $2,453 of supplier advances, and $2,354 and $2,638 of unamortized tooling and other non-recurring costs. At June 30, 2019, $15,297 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 $8,026 is expected to be recovered from units included in the program accounting quantity that represent expected future orders.

At June 30, 2019 and December 31, 2018, commercial aircraft programs inventory included $1,507 and $463 of deferred production costs and $517 and $471 of unamortized tooling and other non-recurring costs related to the 737 program. At June 30, 2019, $2,021 of 737 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 $3 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 $2,718 and $2,844 at June 30, 2019 and December 31, 2018.