| Assets | — | — |
| Current assets | — | — |
| Cash and deposits | 454.71a | 600.89a |
| Marketable securities | 761.71a | 656.91a |
| Notes and accounts receivable | 250.15a | 218.21a |
| Accounts receivable from and advances to unconsolidated subsidiaries and affiliates | 3.01a | 2.35a |
| Lease receivables and investments in leases | 9.57a | 12.22a |
| Inventories | 75.84a | 53.96a |
| Prepaid expenses and other | 139.02a | 156.93a |
| Allowance for doubtful accounts | -0.28a | -0.29a |
| Total current assets | 1,693.73a | 1,701.19a |
| Property and equipment | — | — |
| Land | 44.01a | 44.07a |
| Buildings and structures | 263.37a | 258.67a |
| Aircraft | 2,025.9a | 1,898.88a |
| Machinery and equipment | 106.46a | 100.41a |
| Vehicles | 37.13a | 36.33a |
| Furniture and fixtures | 60.47a | 60.33a |
| Lease assets | 7.68a | 9.3a |
| Construction in progress | 251.03a | 224.17a |
| Total | 2,796.04a | 2,632.15a |
| Accumulated depreciation | -1,391.08a | -1,301.39a |
| Net property and equipment | 1,404.96a | 1,330.75a |
| Investments and other assets | — | — |
| Investment securities | 122.93a | 129.7a |
| Investments in and advances to unconsolidated subsidiaries and affiliates | 32.29a | 31.17a |
| Lease and guaranty deposits | 19.01a | 18.45a |
| Deferred tax assets | 190.75a | 213.37a |
| Goodwill | 14a | 16a |
| Intangible assets | 116.17a | 87.91a |
| Other assets | 26.48a | 40.99a |
| Total investments and other assets | 521.62a | 537.59a |
| Total | 3,620.3a | 3,569.53a |
| Liabilities and equity | — | — |
| Current liabilities | — | — |
| Short-term loans | 76.92a | 84.17a |
| Current portion of long-term debt | 299.4a | 145.83a |
| Accounts payable | 241.95a | 236.3a |
| Accounts payable to unconsolidated subsidiaries and affiliates | 1.33a | 1.11a |
| Contract liabilities | 526.11a | 444.98a |
| Accrued expenses | 85.71a | 80.42a |
| Income taxes payable | 7.47a | 8.02a |
| Other current liabilities | 37.65a | 34.61a |
| Total current liabilities | 1,276.54a | 1,035.43a |
| Long-term liabilities | — | — |
| Long-term debt | 972.74a | 1,254.04a |
| Liability for retirement benefits | 153.84a | 160.03a |
| Deferred tax liabilities | 0.48a | 0.51a |
| Asset retirement obligations | 1.38a | 1.31a |
| Other long-term liabilities | 75.22a | 65.59a |
| Total long-term liabilities | 1,203.66a | 1,481.48a |
| Equity | — | — |
| Common stock: Authorized - 1,020,000,000 shares; issued - 484,293,561 shares in 2025 and 484,293,561 shares in 2024 | 467.6a | 467.6a |
| Capital surplus | 394.8a | 404.07a |
| Retained earnings | 265.48a | 135.97a |
| Treasury stock - 14,330,534 shares in 2025 and 14,224,644 shares in 2024 | -56.55a | -56.51a |
| Accumulated other comprehensive income | — | — |
| Unrealized gain on securities | 35.48a | 41.36a |
| Deferred gain on derivatives under hedge accounting | 26.32a | 59.78a |
| Foreign currency translation adjustments | 3.97a | 3.68a |
| Defined retirement benefit plans | -6.79a | -11.44a |
| Total | 1,130.32a | 1,044.51a |
| Non-controlling interests | 9.78a | 8.12a |
| Total equity | 1,140.1a | 1,052.63a |
| Total | 3,620.3a | 3,569.53a |