Inventories

6 Months Ended

Jun. 30, 2024

Inventories consisted of the following:


	June 30 2024	December 31 2023
Commercial aircraft programs	$74,544	$68,683
Long-term contracts in progress	370	686
Capitalized precontract costs(1)	941	946
Commercial spare parts, used aircraft, general stock materials and other	9,806	9,426
Total	$85,661	$79,741

(1)Capitalized precontract costs at June 30, 2024 and December 31, 2023, included amounts related to T-7A Red Hawk Production Options, Commercial Crew, and KC-46A Tanker. See Note 10.

Commercial Aircraft Programs

At June 30, 2024 and December 31, 2023, commercial aircraft programs inventory included the following amounts related to the 737 program: deferred production costs of $7,638 and $6,011 and unamortized tooling and other non-recurring costs of $880 and $792. At June 30, 2024, $8,480 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 $38 is expected to be recovered from units included in the program accounting quantity that represent expected future orders.

At June 30, 2024 and December 31, 2023, commercial aircraft programs inventory included the following amounts related to the 777X program: $6,072 and $4,638 of work in process (including deferred production costs of $2,612 and $1,792) and $4,218 and $4,063 of unamortized tooling and other non-recurring costs. We expensed abnormal production costs of $262 during the six months ended June 30, 2023. In the fourth quarter of 2023, the 777X program resumed production, and as a result, there were no abnormal production costs during the six months ended June 30, 2024.

At June 30, 2024 and December 31, 2023, commercial aircraft programs inventory included the following amounts related to the 787 program: deferred production costs of $12,336 and $12,384, $1,563 and $1,764 of supplier advances, and $1,441 and $1,480 of unamortized tooling and other non-recurring costs. At June 30, 2024, $11,618 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 $2,159 is expected to be recovered from units included in the program accounting quantity that represent expected future orders. We expensed abnormal production costs of $157 and $693 during the six months ended June 30, 2024 and 2023.

Commercial aircraft programs inventory included amounts credited in cash or other consideration (early issue sales consideration) to airline customers totaling $4,546 and $4,126 at June 30, 2024 and December 31, 2023.