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INCOME TAXES | 12 Months Ended
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Dec. 31, 2018
Income Tax Disclosure [Abstract] |
INCOME TAXES | INCOME TAXES Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. The Tax Cuts and Jobs Act (the "Act") was enacted on December 22, 2017. The Act reduces the U.S. federal corporate tax rate from the previous rate of 35 percent to 21 percent, required companies to pay a one-time transition tax on earnings of certain foreign subsidiaries that were previously tax deferred, and created new taxes on certain foreign sourced earnings. At December 31, 2017, the Company calculated the accounting for the tax effects of enactment of the Act as written, and recorded the effects on the existing deferred tax balances. The components of deferred tax assets and liabilities at December 31, 2018 and 2017, are as follows:
|  | 2018 |  | 2017
(in millions) |  |  |  | As Recast
DEFERRED TAX LIABILITIES: |  |  |  |
Accelerated depreciation |  | $ | 3,395 |  |  | $ | 3,123 |
Other |  | 92 |  |  | 83 |
Total deferred tax liabilities |  | 3,487 |  |  | 3,206 |
DEFERRED TAX ASSETS: |  |  |  |
Construction obligation |  | 355 |  |  | 318 |
Accrued employee benefits |  | 329 |  |  | 301 |
Rapid rewards loyalty liability |  | 267 |  |  | 338 |
Other |  | 109 |  |  | 130 |
Total deferred tax assets |  | 1,060 |  |  | 1,087 |
Net deferred tax liability |  | $ | 2,427 |  |  | $ | 2,119 |
The provision (benefit) for income taxes is composed of the following:
|  | 2018 |  | 2017 |  | 2016
(in millions) |  |  |  | As Recast |  | As Recast
CURRENT: |  |  |  |  |  |
Federal |  | $ | 338 |  |  | $ | 904 |  |  | $ | 778 |
State |  | 60 |  |  | 72 |  |  | 69 |
Total current |  | 398 |  |  | 976 |  |  | 847 |
DEFERRED: |  |  |  |  |  |
Federal |  | 299 |  |  | 200 |  |  | 393 |
State |  | 2 |  |  | 2 |  |  | 27 |
Change in federal statutory tax rate |  | — |  |  | (1,270 | ) |  | — |
Total deferred |  | 301 |  |  | (1,068 | ) |  | 420 |
|  | $ | 699 |  |  | $ | (92 | ) |  | $ | 1,267 |
The effective tax rate on income before income taxes differed from the federal income tax statutory rate for the following reasons:
|  | 2018 |  | 2017 |  | 2016
(in millions) |  |  |  | As Recast |  | As Recast
Tax at statutory U.S. tax rates |  | $ | 664 |  |  | $ | 1,143 |  |  | $ | 1,208 |
State income taxes, net of federal benefit |  | 49 |  |  | 50 |  |  | 62 |
Change in federal statutory tax rate |  | — |  |  | (1,270 | ) |  | — |
Other, net |  | (14 | ) |  | (15 | ) |  | (3 | )
Total income tax provision (benefit) |  | $ | 699 |  |  | $ | (92 | ) |  | $ | 1,267 |
The only period subject to examination for the Company’s federal tax return is the 2018 tax year. The Company is also subject to various examinations from state and local income tax jurisdictions in the ordinary course of business. These examinations are not expected to have a material effect on the financial results of the Company.

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- Definition The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -URI http://asc.fasb.org/topic&trid=2144680 + Details
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