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Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Deferred income tax assets: |  |
Lease and rents | $ 5,242 | $ 5,563
Legal charges | 1,260 | 19
Inventory | 103 | 99
Employee benefits | 153 | 193
Bad debts and other allowances | 480 | 489
Net operating loss and capital loss carryforwards | 266 | 416
Deferred income | 66 | 78
Insurance reserves | 455 | 501
Investments | 293 | 0
Payroll tax deferral | 0 | 87
Other | 335 | 377
Valuation allowance | (532) | (325)
Total deferred income tax assets | 8,121 | 7,497
Deferred income tax liabilities: |  |
Retirement benefits | (92) | (105)
Investments | 0 | (334)
Lease and rents | (4,639) | (4,947)
Depreciation and amortization | (7,139) | (8,381)
Total deferred income tax liabilities | (11,870) | (13,767)
Net deferred income tax liabilities | (3,749) | $ (6,270)
Disposal Group, Held-for-sale, Not Discontinued Operations |  |
Deferred income tax assets: |  |
Total deferred income tax assets | $ 131 |

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