| 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 |
|---|
| Income before income taxes | 235 | 244 | 176 | 221 | 245 | 214 | 155 | 386 | 397 | 673 | 557 | 503 |
|---|
| Depreciation and amortization | 74 | 79 | 87 | 99 | 117 | 134 | 152 | 161 | 213 | 220 | 229 | 248 |
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| Impairment of properties | - | - | - | - | - | - | - | - | - | - | - | 8 |
|---|
| Deferred Income Taxes and Tax Credits | -7 | -1 | 41 | 40 | -50 | 38 | 24 | 3 | 19 | 32 | 2 | 14 |
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| Accretion of asset retirement obligations | - | - | - | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 |
|---|
| Amortization of discount on marketable securities | - | - | - | - | - | - | - | - | - | 0 | 0 | 0 |
|---|
| (Gains) losses from sale of assets | 6 | 0 | -5 | 88 | -4 | -1 | 0 | 1 | 2 | 2 | -1 | -4 |
|---|
| Net (increases) decrease in noncash operating working capital | -75 | 32 | 47 | -54 | 37 | -2 | 49 | 13 | -83 | -45 | 42 | -33 |
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| Other operating activities - net | 13 | 15 | 9 | 10 | 3 | 8 | 15 | 26 | 25 | 25 | 35 | 35 |
|---|
| Net cash provided (required) by operating activities | 357 | 306 | 216 | 337 | 284 | 399 | 313 | 564 | 737 | 995 | 784 | 848 |
|---|
| Property additions | 165 | 139 | 205 | 262 | 258 | 204 | 205 | 231 | 275 | 305 | 336 | 458 |
|---|
| Proceeds from sale of assets | 6 | 0 | 1 | 85 | 1 | 1 | 3 | 8 | 3 | 9 | 2 | 2 |
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| Investment in marketable securities | - | - | - | - | - | - | - | - | - | 22 | 13 | - |
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| Redemptions of marketable securities | - | - | - | - | - | - | - | - | - | - | 24 | 12 |
|---|
| Other investing activities - net | -0 | 11 | 3 | 29 | 5 | 6 | 1 | 2 | 2 | 1 | 2 | 1 |
|---|
| Net cash provided (required) by investing activities | 13 | -149 | -190 | -135 | -262 | -209 | -203 | -224 | -914 | -319 | -324 | -446 |
|---|
| Purchase of treasury stock | - | 51 | 249 | 323 | 206 | 144 | 166 | 400 | 355 | 806 | 333 | 446 |
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| Dividends paid | - | - | - | - | - | - | - | 7 | 27 | 30 | 33 | 37 |
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| Borrowings of debt | 641 | - | - | 200 | 339 | - | 744 | - | 893 | 5 | 8 | 707 |
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| Repayments of debt | - | - | 0 | 20 | 131 | 21 | 573 | 39 | 224 | 20 | 23 | 667 |
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| Amounts related to share-based compensation | - | 1 | 3 | 4 | 6 | 9 | 5 | 11 | 7 | 20 | 21 | 30 |
|---|
| Net cash provided (required) by financing activities | - | -123 | -252 | -151 | -5 | -175 | -14 | -456 | 270 | -871 | -403 | -473 |
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| Net increase (decrease) in cash, cash equivalents and restricted cash | - | - | - | - | - | 15 | 96 | -117 | 93 | -196 | 57 | -71 |
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