Inventories

12 Months Ended

Dec. 31, 2020

Inventories at December 31 consisted of the following:


	2020	2019
Long-term contracts in progress	$823	$1,187
Commercial aircraft programs	70,153	66,016
Commercial spare parts, used aircraft, general stock materials and other	10,739	9,419
Total	$81,715	$76,622

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 $17 and $176 at December 31, 2020 and 2019. See indemnifications to ULA in Note 14.

Commercial spare parts, used aircraft, general stock materials and other includes capitalized precontract costs of $733 at December 31, 2020 and $711 at December 31, 2019 primarily related to KC-46A Tanker and Commercial Crew. See Note 13.

Commercial Aircraft Programs

The increase in commercial aircraft programs inventory during 2020 reflects the large number of undelivered aircraft due to the 737 MAX grounding, lower wide-body deliveries driven by the impacts of the COVID-19 pandemic and 787 production issues and associated rework, partially offset by a reach-forward loss of $6,493 on the 777X program. At December 31, 2020, commercial aircraft programs inventory includes approximately 425 undelivered 737 MAX aircraft and 80 undelivered 787 aircraft.

We are currently remarketing certain aircraft and may have to remarket additional aircraft in future periods. If we are unable to successfully remarket the aircraft, determine further production rates reductions are necessary, and/or contract the program accounting quantities, future earnings may be reduced and/or additional reach-forward losses may have to be recorded.

At December 31, 2020 and 2019, commercial aircraft programs inventory included the following amounts related to the 737 program: deferred production costs of $2,159 and $1,313 and unamortized tooling and other non-recurring costs of $480 and $521. At December 31, 2020, $2,560 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 $79 is expected to be recovered from units included in the program accounting quantity that represent expected future orders.

At December 31, 2020 and 2019, commercial aircraft programs inventory included the following amounts related to the 777X program: unamortized tooling and other non-recurring costs of $3,295 and $2,914. During the fourth quarter of 2020 we determined that estimated costs to complete the 777X program plus costs already included in 777X inventory exceed estimated revenues from the program. The resulting reach-forward loss of $6,493 was recorded as a reduction to deferred production costs. As a result, 777X deferred production costs were immaterial at December 31, 2020. The level of profitability on the 777X program will be subject to a number of factors. These factors include continued market uncertainty, the impacts of COVID-19 on our production system as well as impacts on our supply chain and customers, further production rate adjustments for the 777X or other commercial aircraft programs, contraction of the accounting quantity and potential risks associated with the testing program and the timing of aircraft certification. One or more of these factors could result in additional reach-forward losses on the 777X program in future periods.

At December 31, 2020 and 2019, commercial aircraft programs inventory included the following amounts related to the 787 program: deferred production costs of $14,976 and $18,716, $1,865 and $2,202 of supplier advances, and $1,863 and $2,092 of unamortized tooling and other non-recurring costs. At December 31, 2020, $12,165 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 $4,674 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 $2,992 and $2,863 at December 31, 2020 and 2019.