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Segment Information - Reconciliation of Adjusted EBITDA to Income (Loss) (Detail) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Segment Reporting Information [Line Items] |  |  |  |
Adjusted EBITDA |  | $ 2,411 | $ (175) | $ 788
Less: |  |  |  |
Non-vehicle depreciation and amortization |  | 279 | 286 | 263
Interest expense related to corporate debt, net |  |  |  |
Interest expense |  | 218 | 231 | 178
Early extinguishment of debt |  | 136 | 9 | 12
Covid-19 charges |  | (2) | 122 |
Restructuring and other related charges |  | 64 | 118 | 80
Unprecedented personal-injury and other legal matters, net |  | 3 | 8 | 0
Non-operational charges related to shareholder activist activity |  | 0 | 4 | 2
Transaction-related costs, net |  | 5 | 3 | 10
Gain on sale of equity method investment in China |  | 0 | 0 | (44)
Income (loss) before income taxes |  | 1,708 | (956) | 287
Minimum annual guaranteed rent in excess of concession fees, net | $ (2) | 2 | 60 |
Vehicles damaged in overflow parking lots, net of insurance proceeds | (7) |  | 14 |
Incremental cleaning supplies to sanitize vehicles and facilities, and over flow parking for idle vehicles | 0 |  | 48 |
Other charges | 7 |  | 0 |
Covid-19 charges |  | (2) | 122 |
Operating Expense |  |  |  |
Interest expense related to corporate debt, net |  |  |  |
Covid-19 charges | (3) |  | 116 |
Covid-19 charges | (3) |  | 116 |
Operating Expense | Cloud Computing Costs |  |  |  |
Less: |  |  |  |
Non-vehicle depreciation and amortization |  | 7 |  |
Vehicle Depreciation and Lease Charges |  |  |  |
Interest expense related to corporate debt, net |  |  |  |
Covid-19 charges | 0 |  | 1 |
Covid-19 charges | 0 |  | 1 |
Selling, General and Administrative Expenses |  |  |  |
Interest expense related to corporate debt, net |  |  |  |
Covid-19 charges | 1 |  | 5 |
Covid-19 charges | $ 1 |  | 5 |
Acquisition-related Costs |  |  |  |
Less: |  |  |  |
Non-vehicle depreciation and amortization |  | $ 66 | $ 66 | $ 56

X
- Definition Adjusted earnings before non-vehicle related depreciation and amortization, any impairment charge, restructuring and other related charges, early extinguishment of debt costs, non-vehicle related interest, transaction-related costs, net charges for an unprecedented personal-injury legal matters, non-operational charges related to shareholder activist activity and income taxes. + References No definition available. + Details
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