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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2023
Income Tax Disclosure [Abstract] |
Components of Earnings Before Income Taxes Between Domestic and Foreign Jurisdictions | The components of Loss before income taxes were:
Years ended December 31, |  | 2023 |  |  | 2022 |  |  | 2021 |
U.S. |  | ($ | 2,512 | ) |  | ($ | 5,457 | ) |  | ($ | 5,475 | )
Non-U.S. |  |  | 507 |  |  |  | 435 |  |  |  | 442 |
Total |  | ($ | 2,005 | ) |  | ($ | 5,022 | ) |  | ($ | 5,033 | )
Schedule of Income Tax Expense/(Benefit) | Income tax (expense)/benefit consisted of the following:
Years ended December 31, |  | 2023 |  |  | 2022 |  |  | 2021 |
Current tax (benefit)/expense |  |  |  |  |  |  |  |  |  |  |  |
U.S. federal |  | $ | 9 |  |  | ($ | 58 | ) |  | ($ | 89 | )
Non-U.S. |  |  | 179 |  |  |  | 142 |  |  |  | 147 |
U.S. state |  |  | 19 |  |  |  | (42 | ) |  |  | 42 |
Total current |  |  | 207 |  |  |  | 42 |  |  |  | 100 |
Deferred tax (benefit)/expense |  |  |  |  |  |  |  |  |  |  |  |
U.S. federal |  |  | 6 |  |  |  | (62 | ) |  |  | (855 | )
Non-U.S. |  |  | 5 |  |  |  | (3 | ) |  |  | (12 | )
U.S. state |  |  | 19 |  |  |  | 54 |  |  |  | 24 |
Total deferred |  |  | 30 |  |  |  | (11 | ) |  |  | (843 | )
Total income tax expense/(benefit) |  | $ | 237 |  |  | $ | 31 |  |  | ($ | 743 | )
Schedule of Effective Income Tax Rate Reconciliation | The following is a reconciliation of the U.S. federal statutory tax to actual income tax (benefit)/expense:
Years ended December 31, |  | 2023 |  |  | 2022 |  |  | 2021 |
|  | Amount |  |  | Rate |  |  | Amount |  |  | Rate |  |  | Amount |  |  | Rate |
U.S. federal statutory tax |  | ($ | 421 | ) |  |  | 21.0 | % |  | ($ | 1,054 | ) |  |  | 21.0 | % |  | ($ | 1,057 | ) |  |  | 21.0 | %
Valuation allowance |  |  | 1,150 |  |  |  | (57.3 | ) |  |  | 1,199 |  |  |  | (23.9 | ) |  |  | 512 |  |  |  | (10.2 | )
Research and development credits |  |  | (472 | ) |  |  | 23.6 |  |  |  | (204 | ) |  |  | 4.1 |  |  |  | (189 | ) |  |  | 3.8 |
State income tax provision, net of effects on U.S. federal tax |  |  | (75 | ) |  |  | 3.7 |  |  |  | (90 | ) |  |  | 1.8 |  |  |  | (94 | ) |  |  | 1.9 |
Tax on non-U.S. activities |  |  | 35 |  |  |  | (1.8 | ) |  |  | 64 |  |  |  | (1.3 | ) |  |  | 47 |  |  |  | (0.9 | )
Impact of subsidiary shares purchased from noncontrolling interests |  |  | (29 | ) |  |  | 1.5 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other provision adjustments |  |  | 49 |  |  |  | (2.5 | ) |  |  | 116 |  |  |  | (2.3 | ) |  |  | 38 |  |  |  | (0.9 | )
Income tax expense/(benefit) |  | $ | 237 |  |  |  | (11.8 | )% |  | $ | 31 |  |  |  | (0.6 | )% |  | ($ | 743 | ) |  |  | 14.7 | %
Significant Components of Deferred Tax Assets Net of Deferred Tax Liabilities | Significant components of our deferred tax assets/(liabilities) at December 31 were as follows:
|  | 2023 |  |  | 2022 |
Inventory and long-term contract methods of income recognition |  | ($ | 5,115 | ) |  | ($ | 4,369 | )
Research expenditures |  |  | 2,873 |  |  |  | 1,464 |
Federal net operating loss, credit, interest and other carryovers(1) |  |  | 2,551 |  |  |  | 2,082 |
Fixed assets, intangibles and goodwill |  |  | (1,566 | ) |  |  | (1,641 | )
Pension benefits |  |  | 1,178 |  |  |  | 1,146 |
Other employee benefits |  |  | 1,162 |  |  |  | 1,095 |
State net operating loss, credit, interest and other carryovers(2) |  |  | 1,137 |  |  |  | 1,021 |
Accrued expenses and reserves |  |  | 956 |  |  |  | 933 |
Other postretirement benefit obligations |  |  | 590 |  |  |  | 660 |
737 MAX customer concessions and other considerations |  |  | 310 |  |  |  | 425 |
Other |  |  | 304 |  |  |  | 179 |
Gross deferred tax assets/(liabilities) before valuation allowance |  | $ | 4,380 |  |  | $ | 2,995 |
Valuation allowance |  |  | (4,550 | ) |  |  | (3,162 | )
Net deferred tax assets/(liabilities) after valuation allowance |  | ($ | 170 | ) |  | ($ | 167 | )
(1) | Of the deferred tax asset for federal net operating loss, credit, interest and other carryovers, $1,224 expires on or before December 31, 2043 and $1,327 may be carried over indefinitely.
(2) | Of the deferred tax asset for state net operating loss, credit, interest and other carryovers, $575 expires on or before December 31, 2043 and $562 may be carried over indefinitely.
Net Deferred Tax Assets and Liabilities | Net deferred tax assets/(liabilities) at December 31 were as follows:
|  | 2023 |  |  | 2022 |
Deferred tax assets |  | $ | 14,743 |  |  | $ | 12,301 |
Deferred tax liabilities |  |  | (10,363 | ) |  |  | (9,306 | )
Valuation allowance |  |  | (4,550 | ) |  |  | (3,162 | )
Net deferred tax assets/(liabilities) |  | ($ | 170 | ) |  | ($ | 167 | )
Schedule of Unrecognized Tax Benefits Roll Forward | A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows:
|  | 2023 |  |  | 2022 |  |  | 2021 |
Unrecognized tax benefits – January 1 |  | $ | 915 |  |  | $ | 858 |  |  | $ | 966 |
Gross increases – tax positions in prior periods |  |  | 38 |  |  |  | 17 |  |  |  | 64 |
Gross decreases – tax positions in prior periods |  |  | (3 | ) |  |  | (51 | ) |  |  | (245 | )
Gross increases – current period tax positions |  |  | 181 |  |  |  | 91 |  |  |  | 73 |
Gross decreases – current period tax positions |  |  |  |  |  |  |  |  |  |  |  |
Unrecognized tax benefits – December 31 |  | $ | 1,131 |  |  | $ | 915 |  |  | $ | 858 |

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