| Dec 31, 2012 | Dec 31, 2013 | Dec 31, 2014 | Dec 31, 2015 | Dec 31, 2016 | Dec 31, 2017 | Dec 31, 2018 | Dec 31, 2019 | Dec 31, 2020 | Dec 31, 2021 | Dec 31, 2022 | Dec 31, 2023 | Dec 31, 2024 |
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| Net income for the year | - | - | - | - | - | - | - | - | - | - | 555 | 381 | 316 |
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| Depreciation | - | - | - | - | - | - | 96 | 113 | 109 | 137 | 166 | 166 | 164 |
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| Amortization and write-off of financing costs | 1 | 2 | 4 | 2 | 3 | 2 | 3 | 4 | 4 | 7 | 10 | 9 | 9 |
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| Amortization of deferred drydocking and special survey costs. | 8 | 8 | 8 | 7 | 8 | 8 | 7 | 9 | 9 | 10 | 13 | 20 | 24 |
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| Represents the amortization expense of Time charter assumed amounted and is included in Voyage revenue in the 2018 accompanying consolidated statement of income. | - | - | - | - | - | - | - | - | - | -0 | 0 | -0 | -1 |
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| Amount of amortization of hedge effectiveness excluded component from cash flow hedges. | - | - | - | - | - | - | - | - | - | - | 1 | 4 | 6 |
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| Equity based payments | - | - | - | 9 | 5 | 4 | 4 | 4 | 4 | 7 | 7 | 6 | 8 |
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| Increase in short-term investments | - | - | - | - | - | - | - | - | - | - | 1 | 4 | 1 |
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| (Gain) / loss on derivative instruments, net | -0 | 7 | 5 | 17 | 5 | 1 | -0 | -1 | -2 | -1 | 3 | 5 | -38 |
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| The difference between the sale price or salvage price and the book value of a vessel that was sold during the reporting period. This element refers to the gain (loss). | 3 | -1 | -3 | -2 | 4 | -5 | -3 | -20 | -79 | 46 | 126 | 112 | 4 |
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| Related to the gain (loss) on assets held for sale. | - | - | - | - | 37 | -2 | -0 | -2 | -8 | - | - | -2 | - |
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| Amount of write-down of vessels recognized in the income statement. | - | - | - | - | - | 18 | - | 3 | 32 | - | 2 | 0 | - |
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| Income from equity method investments | - | 1 | -3 | -1 | -0 | 3 | 12 | 11 | 16 | 13 | 2 | 1 | 0 |
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| Accounts receivable and margin deposits | 0 | 23 | -14 | -1 | 0 | 1 | 14 | -7 | -4 | 13 | 6 | 37 | 24 |
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| Due from related parties | -1 | 0 | 2 | 2 | -3 | 2 | -1 | 3 | -6 | -4 | 4 | 0 | 5 |
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| Inventories | 0 | 2 | 1 | -1 | 1 | -2 | 0 | -0 | -0 | 10 | 7 | 33 | -4 |
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| Insurance claims receivable | -2 | -0 | 0 | 2 | -1 | -1 | 5 | 3 | 2 | 4 | 4 | 21 | 4 |
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| Prepayments and other | -0 | 1 | 3 | -1 | 0 | 2 | 0 | 2 | 1 | -3 | 0 | 59 | -9 |
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| Accounts payable | 2 | -0 | 0 | -2 | -0 | 2 | 2 | -2 | 1 | 10 | -1 | 28 | 3 |
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| Due to related parties | - | - | - | 0 | -0 | 0 | -0 | 0 | -0 | 1 | 1 | -1 | 4 |
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| Accrued liabilities | -1 | 4 | 3 | 4 | -7 | -2 | 2 | 4 | 4 | 12 | 22 | -13 | -6 |
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| Unearned revenue | -1 | 3 | 1 | 0 | -1 | -2 | -3 | 1 | 2 | 11 | -2 | 17 | -3 |
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| Other liabilities | 0 | 0 | -1 | -1 | -0 | -0 | 0 | -0 | 0 | -1 | 1 | 11 | 11 |
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| Dividend from equity method investees | - | - | - | - | - | 5 | 8 | 6 | 17 | 6 | 1 | 4 | - |
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| Cash paid during the reporting period for vessel drydocking costs. | 11 | 6 | 10 | 9 | 6 | 6 | 19 | 6 | 15 | 19 | 38 | 43 | 24 |
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| The increase (decrease) during the reporting period, in revenue earned but not yet received, which were recognized in under the straight-line method in conformity with revenue recognition criteria based on specific contractual terms. | -6 | -15 | -7 | -3 | 8 | 11 | 7 | -4 | -21 | 11 | 3 | -10 | -15 |
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| Net Cash provided by Operating Activities | 168 | 187 | 243 | 245 | 227 | 191 | 141 | 250 | 274 | 466 | 582 | 331 | 538 |
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| Capital provided to equity method investments | - | - | - | - | - | - | - | - | - | - | - | 1 | - |
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| Return of capital from equity method investments | - | - | - | - | - | - | 2 | 25 | 33 | 9 | 0 | 3 | 1 |
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| Payments to acquire short-term investments | - | - | - | - | - | - | - | - | - | - | 179 | 200 | 72 |
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| Settlements of short-term investments | - | - | - | - | - | - | - | - | - | - | 60 | 306 | 72 |
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| Proceeds from the settlement of insurance claims | - | - | - | - | - | - | 1 | 7 | 2 | 1 | 3 | 8 | 11 |
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| Acquisition of a subsidiary, net of cash acquired | - | - | - | - | - | - | - | - | - | - | - | -3 | - |
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| Acquisition of non-controlling interest in subsidiary | - | - | - | - | - | - | - | - | - | - | - | - | 0 |
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| Amount of cash outflow for investments in leaseback vessels, classified as investing activities. | - | - | - | - | - | - | - | - | - | - | - | 199 | 99 |
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| Capital collections from vessels' leaseback arrangements | - | - | - | - | - | - | - | - | - | - | - | 19 | 66 |
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| The cash outflow associated with the acquisition of vessel that are used in the normal conduct of business to produce goods and services and not intended for resale and or upgrades of existing vessels to increase their earnings capacity. | 74 | 52 | 29 | 3 | 3 | 64 | 143 | 62 | 102 | 992 | 62 | 83 | 181 |
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| The cash inflow from the sale of vessels. | -29 | -14 | -22 | -5 | -4 | 27 | 14 | 21 | 30 | 123 | 220 | 224 | 124 |
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| Net Cash provided by / (used in) in Investing Activities | -237 | -621 | -119 | -43 | -34 | -43 | -113 | -9 | -36 | -787 | 42 | 79 | -80 |
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| Proceeds from long-term debt and finance leases | - | - | - | - | - | 62 | 361 | 448 | 286 | 1,225 | 1,014 | 576 | 528 |
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| Repayment of long-term debt and finance leases | - | - | - | - | - | 254 | 500 | 598 | 451 | 655 | 984 | 832 | 842 |
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| Payment of financing costs | 1 | 0 | 2 | - | 4 | 2 | 3 | 4 | 7 | 16 | 20 | 25 | 3 |
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| Capital contribution from non-controlling interest to subsidiary | - | - | - | - | - | - | - | - | - | - | - | - | 0 |
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| Repurchase of common stock | - | - | - | - | - | - | - | - | - | - | 60 | 60 | - |
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| Redemption of Preferred Stock (Series E) | - | - | - | - | - | - | - | - | - | - | - | - | 114 |
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| Dividends paid | 73 | 82 | 93 | 102 | 75 | 38 | 49 | 59 | 65 | 71 | 120 | 72 | 74 |
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| Net Cash used in Financing Activities | 238 | 260 | -104 | -215 | -127 | -134 | -81 | -212 | -242 | 483 | -166 | -397 | -505 |
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| Net increase /(decrease) in cash, cash equivalents and restricted cash | - | - | - | - | - | - | -52 | 29 | -4 | 162 | 458 | 14 | -47 |
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| Cash paid during the year for interest | - | - | - | - | - | - | 61 | 83 | 64 | 72 | 101 | 153 | 147 |
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| Dividend reinvested in common stock of the Company | - | - | - | - | - | - | - | 19 | 14 | 13 | 30 | 16 | 11 |
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| Right-of-Use Asset Obtained in Exchange for Operating Lease Liability | - | - | - | - | - | - | - | - | - | - | - | 440 | 282 |
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