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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2023
Income Tax Disclosure [Abstract] |
Schedule of Provision for (Benefit From) Income Taxes | The provision for income taxes consists of the following:
|  | Year Ended December 31,
|  | 2023 |  | 2022 |  | 2021
Current |  |  |  |  |
| Federal | $ | — |  |  | $ | — |  |  | $ | — |
| State | 45 |  |  | 137 |  |  | 35 |
| Foreign | 43 |  |  | 61 |  |  | 12 |
| Current income tax provision | 88 |  |  | 198 |  |  | 47 |
Deferred |  |  |  |  |
| Federal | 77 |  |  | 622 |  |  | 309 |
| State | 47 |  |  | (22) |  |  | 78 |
| Foreign | 67 |  |  | 82 |  |  | (9) |
| Deferred income tax provision | 191 |  |  | 682 |  |  | 378 |
Provision for income taxes | $ | 279 |  |  | $ | 880 |  |  | $ | 425 |
Schedule of Pretax Income (Loss) for Domestic and Foreign Operations | Income before income taxes is comprised of the following:
| Year Ended December 31,
| 2023 |  | 2022 |  | 2021
United States (U.S.) | $ | 1,418 |  |  | $ | 3,114 |  |  | $ | 1,529 |
Foreign | 496 |  |  | 522 |  |  | 179 |
Income before income taxes | $ | 1,914 |  |  | $ | 3,636 |  |  | $ | 1,708 |
Schedule of Deferred Income Tax Assets and Liabilities | Deferred income tax assets, net is comprised of the following:
|  | As of December 31,
|  | 2023 |  | 2022
Deferred income tax assets: |  |  |
| Net tax loss carryforwards | $ | 1,373 |  |  | $ | 1,109 |
| Long-term operating lease liabilities | 703 |  |  | 666 |
| Accrued liabilities and deferred revenue | 169 |  |  | 231 |
| Tax credits | 323 |  |  | 38 |
| Depreciation and amortization | 22 |  |  | 25 |
| Provision for doubtful accounts | 18 |  |  | 19 |
| Other | 213 |  |  | 167 |
| Valuation allowance (a) | (103) |  |  | (101) |
Deferred income tax assets | 2,718 |  |  | 2,154 |
Deferred income tax liabilities: |  |  |
| Operating lease right-of-use assets | 693 |  |  | 657 |
| Depreciation and amortization | 117 |  |  | 90 |
| Prepaid expenses | 33 |  |  | 24 |
| Other | 7 |  |  | 4 |
Deferred income tax liabilities | 850 |  |  | 775 |
Deferred income tax assets, net | $ | 1,868 |  |  | $ | 1,379 |
__________ (a) T he valuation allowance at December 31, 2023 relates to tax loss carryforwards and certain deferred tax assets of $100 million and $3 million, respectively. The valuation allowance at December 31, 2022 relates to tax loss carryforwards and certain deferred tax assets of $97 million and $4 million, respectively. The valuation allowances will be reduced when and if we determine it is more likely than not that the related deferred income tax assets will be realized. Deferred income tax assets and liabilities related to vehicle programs are comprised of the following:
| As of December 31,
| 2023 |  | 2022
Deferred income tax assets: |  |  |
Depreciation and amortization | $ | 80 |  |  | $ | 63 |
Other | 28 |  |  | 22 |
Deferred income tax assets | 108 |  |  | 85 |
Deferred income tax liabilities: |  |  |
Depreciation and amortization | 3,497 |  |  | 2,815 |
Other | 29 |  |  | 24 |
Deferred income tax liabilities | 3,526 |  |  | 2,839 |
Deferred income tax liabilities under vehicle programs, net | $ | 3,418 |  |  | $ | 2,754 |
Schedule of Reconciliation of U.S Federal Income Tax Statutory Rate and Effective Income Tax Rate | The reconciliation between the U.S. federal income tax statutory rate and our effective income tax rate is as follows:
|  | Year Ended December 31,
|  | 2023 |  | 2022 |  | 2021
U.S. federal statutory rate | 21.0 | % |  | 21.0 | % |  | 21.0 | %
Adjustments to reconcile to the effective rate: |  |  |  |  |
| State and local income taxes, net of federal tax benefits | 4.0 |  |  | 3.9 |  |  | 5.5 |
| Changes in valuation allowances | — |  |  | (1.3) |  |  | (0.6) |
| Taxes on foreign operations at rates different than U.S. federal statutory rates | 2.8 |  |  | 1.2 |  |  | (2.0) |
| Tax credits (a) | (11.7) |  |  | (0.4) |  |  | — |
| Stock-based compensation | (1.1) |  |  | (0.5) |  |  | (0.3) |
| Other non-deductible (non-taxable) items | 0.7 |  |  | 0.4 |  |  | 0.6 |
| Other (a) | (1.1) |  |  | (0.1) |  |  | 0.7 |
|  | 14.6 | % |  | 24.2 | % |  | 24.9 | %
_______ (a)For the year ended December 31, 2022, we reclassified (0.4%) of certain tax credits to conform to the current year presentation. This reclassification had no impact to our reported effective income tax rate.
Schedule of Changes in Gross Unrecognized Tax Benefits | The following is a tabular reconciliation of the gross amount of unrecognized tax benefits for the year:
|  | 2023 |  | 2022 |  | 2021
Balance, January 1 | $ | 53 |  |  | $ | 58 |  |  | $ | 57 |
| Additions for tax positions related to current year | 5 |  |  | 4 |  |  | 4 |
| Additions for tax positions for prior years | 5 |  |  | 3 |  |  | 3 |
| Reductions for tax positions for prior years | — |  |  | (5) |  |  | (3) |
| Settlements | — |  |  | (5) |  |  | — |
| Statute of limitations | (2) |  |  | — |  |  | — |
| Foreign currency translation | 2 |  |  | (2) |  |  | (3) |
Balance, December 31 | $ | 63 |  |  | $ | 53 |  |  | $ | 58 |
Schedule of Unrecognized Tax Benefits | The following table presents unrecognized tax benefits:
| As of December 31,
| 2023 |  | 2022
Unrecognized tax benefits in current income taxes payable (a) | $ | 17 |  |  | $ | — |
Unrecognized tax benefits in non-current income taxes payable (a) | 21 |  |  | 33 |
Accrued interest payable on potential tax liabilities (b) | 44 |  |  | 31 |
__________ (a)Pursuant to the agreements governing the disposition of certain subsidiaries in 2006, we are entitled to indemnification for certain predisposition tax contingencies. As of December 31, 2023, $17 million of unrecognized tax benefits in current income taxes payable are related to tax contingencies which we believe we are entitled to indemnification. As of December 31, 2022, $13 million unrecognized tax benefits in non-current income taxes payable are related to tax contingencies for which we believe we are entitled to indemnification. (b)We recognize potential interest related to unrecognized tax benefits within interest expense related to corporate debt, net on the accompanying Consolidated Statements of Operations. Penalties incurred during the years ended December 31, 2023, 2022 and 2021, were not significant and were recognized as a component of the provision for income taxes.

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- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Paragraph 9 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-9 + Details
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