| Dec 31, 2011 | 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 | -4 | -909 | -80 | -42 | 47 | 418 | 189 | 115 | 158 | -135 | 464 | 639 | 620 | 578 |
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| Depreciation and amortization | 195 | 214 | 278 | 251 | 207 | 196 | 218 | 230 | 277 | 281 | 268 | 258 | 257 | 277 |
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| Amortization of debt financing costs and discounts on debt | - | - | - | - | - | - | - | - | 9 | 12 | 11 | 9 | 8 | 8 |
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| Non-cash operating lease expense | - | - | - | - | - | - | - | - | - | - | - | 65 | 79 | 88 |
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| Non-cash expected credit loss (income) on note receivable | - | - | - | - | - | - | - | - | - | - | - | -35 | -34 | - |
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| us-gaap_ShareBasedCompensation | 10 | 12 | 19 | 18 | 19 | 16 | 17 | 25 | 25 | 9 | 38 | 34 | 32 | 30 |
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| Deferred income taxes | - | - | - | -1 | -16 | 199 | -5 | -34 | -41 | 32 | -134 | -51 | 30 | -58 |
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| Asset Impairment Charges | - | 1,054 | 10 | 61 | 19 | 38 | -0 | 1 | - | 175 | 8 | 41 | 108 | 11 |
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| Gain on sale of assets | - | - | - | - | - | 6 | 1 | - | - | 14 | - | 13 | - | - |
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| Loss on early extinguishments and modifications of debt | - | - | - | -2 | -41 | -42 | -2 | -0 | -35 | -2 | -95 | -20 | - | - |
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| Other operating activities | 8 | 9 | 2 | 1 | 2 | 2 | -2 | 1 | 3 | 4 | 10 | 10 | 2 | 9 |
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| Accounts receivable, net | 12 | -9 | 11 | -2 | -2 | -0 | 10 | 1 | 0 | -1 | 36 | 17 | 29 | -6 |
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| Inventories | -0 | -1 | 1 | -0 | 0 | -1 | -1 | -2 | 2 | 1 | -3 | 2 | -1 | 1 |
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| Prepaid expenses and other current assets | 4 | -7 | -6 | 13 | 4 | -2 | -5 | -4 | 1 | -6 | 2 | 8 | 10 | -3 |
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| Income taxes (receivable) payable, net | -2 | -0 | -1 | 0 | 0 | 1 | -1 | 0 | 0 | -6 | -0 | 3 | 1 | 26 |
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| Other assets, net | 3 | -1 | -22 | 1 | -1 | 1 | -2 | 4 | 5 | 3 | 6 | 8 | -1 | -1 |
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| Accounts payable and accrued liabilities | 43 | -12 | -31 | 24 | 13 | -12 | 14 | 18 | -1 | -30 | 15 | 1 | -10 | 6 |
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| Operating lease liabilities | - | - | - | - | - | - | - | - | -32 | -56 | -46 | -65 | -79 | -88 |
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| Other liabilities | -5 | -6 | 2 | -3 | 2 | 2 | -1 | -0 | 5 | 11 | 8 | 1 | -0 | -2 |
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| Net cash provided by operating activities | 254 | 142 | - | 323 | 340 | 303 | 415 | 435 | - | - | 1,010 | 976 | 915 | 957 |
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| Capital expenditures | 87 | 126 | 145 | 149 | 131 | 160 | 190 | 162 | 208 | 175 | 199 | 269 | 374 | 400 |
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| Cash paid for acquisitions, net of cash received | 278 | 1,324 | - | - | - | - | - | - | 6 | 11 | - | 168 | - | 30 |
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| Payments received on note receivable | - | - | - | - | - | - | - | - | - | - | - | - | 114 | 0 |
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| Insurance proceeds received from hurricane losses | - | - | - | - | - | - | - | - | - | - | 63 | 1 | - | - |
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| Proceeds received from disposition of assets | - | - | - | - | - | - | - | - | - | 15 | - | 22 | - | - |
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| Other investing activities | -1 | -15 | -2 | 4 | -5 | -14 | -1 | 40 | 18 | - | -7 | 8 | 4 | 3 |
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| Net cash used in investing activities | -363 | -1,435 | 20 | -180 | -127 | -739 | -226 | -1,135 | - | - | -130 | -422 | -264 | -434 |
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| Borrowings under credit facilities | 391 | - | - | - | - | - | 958 | 1,115 | 1,666 | 965 | - | 2,122 | 1,506 | 1,764 |
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| Payments under credit facilities | 184 | - | - | - | - | - | 1,119 | 964 | 2,132 | 1,375 | 28 | 1,802 | 1,647 | 1,510 |
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| Retirements of senior notes | - | - | - | - | - | - | - | - | 750 | - | 1,750 | 300 | - | - |
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| Premium fees | - | - | - | - | - | - | - | - | - | - | - | 13 | - | - |
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| Debt financing costs | - | - | - | - | - | - | - | - | 16 | 17 | 14 | 17 | - | - |
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| Share-based compensation activities | - | - | - | - | - | - | - | - | 6 | 5 | 6 | 15 | 19 | 15 |
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| Shares repurchased and retired | - | - | - | - | - | - | - | - | 28 | 11 | 81 | 542 | 413 | 686 |
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| Dividends paid | - | - | - | - | - | - | 11 | 25 | 29 | 8 | - | 48 | 64 | 63 |
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| Other financing activities | -1 | -1 | -2 | 0 | - | -0 | 1 | -0 | -1 | -2 | -2 | -1 | -0 | -0 |
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| Net cash used in financing activities | 142 | 1,307 | -366 | -175 | -200 | -99 | -215 | 746 | - | - | -1,059 | -616 | -637 | -510 |
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| Effect of foreign currency exchange rates on cash, cash equivalents and restricted cash | - | - | - | - | - | - | - | - | - | - | - | -0 | -0 | -0 |
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| Change in cash, cash equivalents and restricted cash | - | - | - | - | - | - | - | 46 | -3 | 265 | -178 | -62 | 13 | 13 |
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| Cash paid for interest, net of amounts capitalized | - | - | - | - | - | - | - | - | 232 | 215 | 205 | 144 | 167 | 173 |
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| Cash received for interest | - | - | - | - | - | - | - | - | - | - | - | - | 12 | 0 |
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| Cash paid for income taxes | 5 | 0 | -6 | 0 | -1 | 34 | 5 | 6 | -2 | -6 | 6 | 141 | 164 | 145 |
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| Payables incurred for capital expenditures | 6 | 16 | 12 | 17 | 7 | 9 | 9 | 5 | 2 | 2 | 5 | 7 | 24 | 27 |
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| Operating lease right-of-use asset and liability remeasurements | - | - | - | - | - | - | - | - | - | - | - | -11 | - | - |
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| Expected credit loss (income) on note receivable | - | - | - | - | - | - | - | - | - | - | - | -35 | -34 | - |
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