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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2020
Income Taxes [Abstract] |
Schedule Of Components Of Income Tax Expense | Components of income tax expense were as follows for the years ended December 31:
Millions | 2020 | 2019 | 2018
Current tax expense: |  |  |  |  |  |
Federal | $ | 1,026 | $ | 1,000 | $ | 1,144
State |  | 259 |  | 254 |  | 287
Foreign |  | 6 |  | 8 |  | 5
Total current tax expense |  | 1,291 |  | 1,262 |  | 1,436
Deferred and other tax expense: |  |  |  |  |  |
Federal |  | 295 |  | 417 |  | 344
State |  | 45 |  | 128 |  | 5
Foreign |  | - |  | 21 |  | (10)
Total deferred and other tax expense |  | 340 |  | 566 |  | 339
Total income tax expense | $ | 1,631 | $ | 1,828 | $ | 1,775
Reconciliations Between Statutory And Effective Tax Rates | For the years ended December 31, reconciliations between statutory and effective tax rates are as follows:
Tax Rate Percentages | 2020 |  | 2019 |  | 2018 |
Federal statutory tax rate | 21.0 | % | 21.0 | % | 21.0 | %
State statutory rates, net of federal benefits | 3.7 |  | 3.7 |  | 3.9 |
Excess tax benefits from equity compensation plans | (0.8) |  | (0.7) |  | (0.4) |
Dividends received deduction | (0.5) |  | (0.6) |  | (0.6) |
Deferred tax adjustments | (0.1) |  | (0.1) |  | (0.6) |
Other | 0.1 |  | 0.3 |  | (0.4) |
Effective tax rate | 23.4 | % | 23.6 | % | 22.9 | %
Schedule Of Deferred Income Tax Liabilities And Assets | Deferred income tax (liabilities)/assets were comprised of the following at December 31:
Millions | 2020 | 2019
Deferred income tax liabilities: |  |  |  |
Property | $ | (12,474) | $ | (12,184)
Operating lease assets |  | (397) |  | (447)
Other |  | (444) |  | (341)
Total deferred income tax liabilities |  | (13,315) |  | (12,972)
Deferred income tax assets: |  |  |  |
Accrued wages |  | 40 |  | 45
Accrued casualty costs |  | 143 |  | 146
Stock compensation |  | 26 |  | 37
Retiree benefits |  | 255 |  | 171
Operating lease liabilities |  | 396 |  | 453
Other |  | 208 |  | 128
Total deferred income tax assets |  | 1,068 |  | 980
Net deferred income tax liability | $ | (12,247) | $ | (11,992)
Reconciliation Of Changes In Unrecognized Tax Benefits Liabilities/(Assets) | A reconciliation of changes in unrecognized tax benefits liabilities/(assets) from the beginning to the end of the reporting period is as follows:
Millions | 2020 | 2019 | 2018
Unrecognized tax benefits at January 1 | $ | 64 | $ | 174 | $ | 179
Increases for positions taken in current year |  | 18 |  | 20 |  | 30
Increases for positions taken in prior years |  | 7 |  | 44 |  | 9
Decreases for positions taken in prior years |  | (19) |  | (96) |  | (30)
Refunds from/(payments to) and settlements with taxing authorities |  | - |  | (11) |  | 21
Increases/(decreases) for interest and penalties |  | 5 |  | (5) |  | 4
Lapse of statutes of limitations |  | (1) |  | (62) |  | (39)
Unrecognized tax benefits at December 31 | $ | 74 | $ | 64 | $ | 174
Unrecognized Tax Benefits That Would/Not Reduce The Effective Tax Rate | The unrecognized tax benefits that would reduce our effective tax rate are as follows:
Millions | 2020 | 2019 | 2018
Unrecognized tax benefits that would reduce the effective tax rate | $ | 52 | $ | 39 | $ | 63
Unrecognized tax benefits that would not reduce the effective tax rate |  | 22 |  | 25 |  | 111
Total unrecognized tax benefits | $ | 74 | $ | 64 | $ | 174

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- Definition Tabular disclosure of tax positions taken in the tax returns filed or to be filed for which it is more likely than not that the tax postion will not be sustained upon examination by taxing authorities and other types of income tax contingencies that, if recognized, would affect the effective tax rate + References No definition available. + Details
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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 -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32639-109319 + Details
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- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
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