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BASIS OF PRESENTATION (Policies) | 9 Months Ended
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Sep. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Principles of Consolidation | Principles of Consolidation In our opinion, the accompanying interim, unaudited, consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States ("U.S. GAAP") for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. These consolidated financial statements contain all adjustments (consisting of normal recurring accruals) necessary to present fairly our financial position as of September 30, 2018, our results of operations for the three and nine months ended September 30, 2018 and 2017, and cash flows for the nine months ended September 30, 2018 and 2017. The results reported in these consolidated financial statements should not be regarded as necessarily indicative of results that may be expected for any other period or the entire year. The interim consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2017. For interim consolidated financial statement purposes, we provide for accruals under our various employee benefit plans for each three month period based on one quarter of the estimated annual expense. Certain prior year amounts have been reclassified to conform to the current year presentation. These reclassifications had no material impact on our financial position or results of operations.
Fair Value of Financial Instruments | Fair Value of Financial InstrumentsThe carrying amounts of our cash and cash equivalents, accounts receivable, finance receivables and accounts payable approximate fair value as of September 30, 2018. The fair values of our investment securities are disclosed in note 5, our recognized multiemployer pension withdrawal liabilities in note 7, our short and long-term debt in note 9 and our derivative instruments in note 14. We utilized Level 1 inputs in the fair value hierarchy of valuation techniques to determine the fair value of our cash and cash equivalents, and Level 2 inputs to determine the fair value of our accounts receivable, finance receivables and accounts payable.
Property, Plant and Equipment | Property, Plant and EquipmentProperty, plant and equipment are carried at cost. We evaluate the useful lives of our property, plant and equipment based on our usage, maintenance and replacement policies, and taking into account physical and economic factors that may affect the useful lives of the assets. As part of our ongoing investment in transformation, beginning in the third quarter of 2018, we revised our estimates of useful lives for building improvements and vehicles based on our current assessment of these factors. In general, the change in estimate had the effect of lengthening the useful lives of vehicles and building improvements. Depreciation and amortization are provided by the straight-line method over the estimated useful lives of the assets, which are as follows: Vehicles-6 to 15 years; Aircraft-12 to 30 years; Buildings-20 to 40 years; Leasehold Improvements-lesser of asset useful life or lease term; Plant Equipment-3 to 20 years; Technology Equipment-3 to 5 years. The costs of major airframe and engine overhauls, as well as routine maintenance and repairs, are charged to expense as incurred.
Accounting Estimates | Accounting EstimatesThe preparation of the accompanying interim, unaudited, consolidated financial statements requires management to make estimates and judgments that affect the reported amounts of assets and liabilities and the disclosure of contingencies at the date of the consolidated financial statements, as well as the reported amounts of revenues and expenses during the reporting period. Estimates have been prepared on the basis of the most current and best information and actual results could differ materially from those estimates.
Change in Accounting Methodology | The preparation of the accompanying interim, unaudited, consolidated financial statements requires management to make estimates and judgments that affect the reported amounts of assets and liabilities and the disclosure of contingencies at the date of the consolidated financial statements, as well as the reported amounts of revenues and expenses during the reporting period. Estimates have been prepared on the basis of the most current and best information and actual results could differ materially from those estimates.
Adoption of New Accounting Standards | Adoption of New Accounting Standards In May 2014, the Financial Accounting Standards Board ("FASB") issued an accounting standards update ("ASU") that changes the revenue recognition for companies that enter into contracts with customers to transfer goods or services ("Revenue from Contracts with Customers"). The standard is a comprehensive new revenue recognition model that requires revenue to be recognized in a manner depicting the transfer of goods or services to a customer at an amount that reflects the consideration expected to be received in exchange for those goods or services. The FASB has also issued a number of updates to this standard. Effective January 1, 2018, we adopted the requirements of this ASU using the full retrospective method. See note 3 for required disclosures pertaining to the new ASU. In November 2016, the FASB issued an ASU that is intended to reduce diversity in practice by adding or clarifying guidance on classification and presentation of changes in restricted cash on the statement of cash flows ("Restricted Cash"). Effective January 1, 2018, we adopted the requirements of this ASU retrospectively. As a result of this update, restricted cash is included within cash and cash equivalents on our statements of consolidated cash flows. In March 2017, the FASB issued an ASU to improve the presentation of net periodic pension cost and net periodic postretirement benefit cost ("Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost"). The update requires employers to report the current service cost component in the same line item as other compensation costs arising from services rendered by employees during the period. The other components of net benefit cost are required to be presented separately from service cost and outside of income from operations. Effective January 1, 2018, we adopted the requirements of this ASU retrospectively, as required. As a result of this update, the net amount of interest cost, prior service cost and expected return on plan assets is now presented as other income. We have recast our consolidated financial statements from amounts previously reported due to the adoption of new revenue recognition, pension and restricted cash standards. Impacted consolidated balance sheet line items, which reflect the adoption of the new ASUs, are as follows (in millions):
| December 31, 2017
| As previously reported |  | Adjustments (a) |  | Adjustments (b) |  | Adjustments (c) |  | As Recast
Assets: |  |  |  |  |  |  |  |  |
Other current assets | $ | 1,133 |  |  | $ | 170 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,303 |
Total current assets | 15,548 |  |  | 170 |  |  | — |  |  | — |  |  | 15,718 |
Deferred income tax assets | 265 |  |  | 1 |  |  | — |  |  | — |  |  | 266 |
Total Assets | $ | 45,403 |  |  | $ | 171 |  |  | $ | — |  |  | $ | — |  |  | $ | 45,574 |
Liabilities: |  |  |  |  |  |  |  |  |
Accounts payable | $ | 3,872 |  |  | $ | 62 |  |  | $ | — |  |  | $ | — |  |  | $ | 3,934 |
Accrued wages and withholdings | 2,521 |  |  | 87 |  |  | — |  |  | — |  |  | 2,608 |
Other current liabilities(1) | 905 |  |  | 29 |  |  | — |  |  | — |  |  | 934 |
Total current liabilities | 12,708 |  |  | 178 |  |  | — |  |  | — |  |  | 12,886 |
Deferred income tax liabilities | 757 |  |  | (1 | ) |  | — |  |  | — |  |  | 756 |
Shareowners' Equity: |  |  |  |  |  |  |  |  |
Retained earnings | 5,858 |  |  | (6 | ) |  | — |  |  | — |  |  | 5,852 |
Total Shareowners' Equity | 1,030 |  |  | (6 | ) |  | — |  |  | — |  |  | 1,024 |
Total Liabilities and Shareowners' Equity | $ | 45,403 |  |  | $ | 171 |  |  | $ | — |  |  | $ | — |  |  | $ | 45,574 |
(1) The caption "Other current liabilities" was presented separately from "Hedge margin liabilities" of $17 million in the Form 10-K at December 31, 2017. These captions have been collapsed in the consolidated balance sheets as of September 30, 2018 and December 31, 2017 included within this Form 10-Q. (a) Recast to reflect the adoption of Revenue from Contracts with Customers. (b) Recast to reflect the adoption of Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost. (c) Recast to reflect the adoption of Restricted Cash. The unaudited consolidated statement of operations, which reflects the adoption of the new ASUs, is as follows (in millions):
| Three months ended September 30, 2017
| As Previously Reported |  | Adjustments (a) |  | Adjustments (b) |  | Adjustments (c) |  | As Recast
Revenue | $ | 15,978 |  |  | $ | 195 |  |  | $ | — |  |  | $ | — |  |  | $ | 16,173 |
Operating Expenses: |  |  |  |  |  |  |  |  |
Compensation and benefits | 8,221 |  |  | — |  |  | 216 |  |  | — |  |  | 8,437 |
Repairs and maintenance | 398 |  |  | 1 |  |  | — |  |  | — |  |  | 399 |
Depreciation and amortization | 572 |  |  | — |  |  | — |  |  | — |  |  | 572 |
Purchased transportation | 2,652 |  |  | 180 |  |  | — |  |  | — |  |  | 2,832 |
Fuel | 636 |  |  | — |  |  | — |  |  | — |  |  | 636 |
Other occupancy | 282 |  |  | — |  |  | — |  |  | — |  |  | 282 |
Other expenses | 1,182 |  |  | 21 |  |  | — |  |  | — |  |  | 1,203 |
Total Operating Expenses | 13,943 |  |  | 202 |  |  | 216 |  |  | — |  |  | 14,361 |
Operating Profit | 2,035 |  |  | (7 | ) |  | (216 | ) |  | — |  |  | 1,812 |
Other Income and (Expense): |  |  |  |  |  |  |  |  |
Investment income and other | 20 |  |  | — |  |  | 216 |  |  | — |  |  | 236 |
Interest expense | (111 | ) |  | — |  |  | — |  |  | — |  |  | (111 | )
Total Other Income and (Expense) | (91 | ) |  | — |  |  | 216 |  |  | — |  |  | 125 |
Income Before Income Taxes | 1,944 |  |  | (7 | ) |  | — |  |  | — |  |  | 1,937 |
Income Tax Expense (Benefit) | 680 |  |  | (2 | ) |  | — |  |  | — |  |  | 678 |
Net Income | $ | 1,264 |  |  | $ | (5 | ) |  | $ | — |  |  | $ | — |  |  | $ | 1,259 |
Basic Earnings Per Share | $ | 1.45 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 1.45 |
Diluted Earnings Per Share | $ | 1.45 |  |  | $ | (0.01 | ) |  | $ | — |  |  | $ | — |  |  | $ | 1.44 |
(a) Recast to reflect the adoption of Revenue from Contracts with Customers. (b) Recast to reflect the adoption of Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost. (c) Recast to reflect the adoption of Restricted Cash.
| Nine months ended September 30, 2017
| As Previously Reported |  | Adjustments (a) |  | Adjustments (b) |  | Adjustments (c) |  | As Recast
Revenue | $ | 47,043 |  |  | $ | 567 |  |  | $ | — |  |  | $ | — |  |  | $ | 47,610 |
Operating Expenses: |  |  |  |  |  |  |  |  |
Compensation and benefits | 24,457 |  |  | — |  |  | 575 |  |  | — |  |  | 25,032 |
Repairs and maintenance | 1,180 |  |  | 1 |  |  | — |  |  | — |  |  | 1,181 |
Depreciation and amortization | 1,688 |  |  | — |  |  | — |  |  | — |  |  | 1,688 |
Purchased transportation | 7,461 |  |  | 530 |  |  | — |  |  | — |  |  | 7,991 |
Fuel | 1,873 |  |  | — |  |  | — |  |  | — |  |  | 1,873 |
Other occupancy | 845 |  |  | — |  |  | — |  |  | — |  |  | 845 |
Other expenses | 3,504 |  |  | 30 |  |  | — |  |  | — |  |  | 3,534 |
Total Operating Expenses | 41,008 |  |  | 561 |  |  | 575 |  |  | — |  |  | 42,144 |
Operating Profit | 6,035 |  |  | 6 |  |  | (575 | ) |  | — |  |  | 5,466 |
Other Income and (Expense): |  |  |  |  |  |  |  |  |
Investment income and other | 49 |  |  | — |  |  | 575 |  |  | — |  |  | 624 |
Interest expense | (324 | ) |  | — |  |  | — |  |  | — |  |  | (324 | )
Total Other Income and (Expense) | (275 | ) |  | — |  |  | 575 |  |  | — |  |  | 300 |
Income Before Income Taxes | 5,760 |  |  | 6 |  |  | — |  |  | — |  |  | 5,766 |
Income Tax Expense (Benefit) | 1,954 |  |  | 3 |  |  | — |  |  | — |  |  | 1,957 |
Net Income | $ | 3,806 |  |  | $ | 3 |  |  | $ | — |  |  | $ | — |  |  | $ | 3,809 |
Basic Earnings Per Share | $ | 4.36 |  |  | $ | 0.01 |  |  | $ | — |  |  | $ | — |  |  | $ | 4.37 |
Diluted Earnings Per Share | $ | 4.35 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 4.35 |
(a) Recast to reflect the adoption of Revenue from Contracts with Customers. (b) Recast to reflect the adoption of Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost. (c) Recast to reflect the adoption of Restricted Cash. The unaudited impacted consolidated statement of cash flows line items, which reflect the adoption of the new ASUs, are as follows (in millions):
| Nine Months Ended September 30, 2017
| As Previously Reported |  | Adjustments (a) |  | Adjustments (b) |  | Adjustments (c) |  | As Recast
Net Income | $ | 3,806 |  |  | $ | 3 |  |  | $ | — |  |  | $ | — |  |  | $ | 3,809 |
Adjustments to reconcile net income to net cash from operating activities: |  |  |  |  |  |  |  |  |
Deferred tax (benefit) expense | 295 |  |  | 3 |  |  | — |  |  | — |  |  | 298 |
Other assets | 185 |  |  | (34 | ) |  | — |  |  | — |  |  | 151 |
Accounts payable | (411 | ) |  | 13 |  |  | — |  |  | — |  |  | (398 | )
Accrued wages and withholdings | 117 |  |  | 17 |  |  | — |  |  | — |  |  | 134 |
Other liabilities | (580 | ) |  | (2 | ) |  | — |  |  | — |  |  | (582 | )
Cash flows from operating activities | 4,418 |  |  | — |  |  | — |  |  | — |  |  | 4,418 |
Purchase of marketable securities | (1,468 | ) |  | — |  |  | — |  |  | 3 |  |  | (1,465 | )
Net cash used in investing activities | (3,618 | ) |  | — |  |  | — |  |  | 3 |  |  | (3,615 | )
Net decrease in cash, cash equivalents and restricted cash | (58 | ) |  | — |  |  | — |  |  | 3 |  |  | (55 | )
Cash, cash equivalents and restricted cash at the beginning of period | 3,476 |  |  | — |  |  | — |  |  | 445 |  |  | 3,921 |
Cash, cash equivalents and restricted cash at the end of period | $ | 3,418 |  |  | $ | — |  |  | $ | — |  |  | $ | 448 |  |  | $ | 3,866 |
(a) Recast to reflect the adoption of Revenue from Contracts with Customers. (b) Recast to reflect the adoption of Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost. (c) Recast to reflect the adoption of Restricted Cash. In February 2018, the FASB issued an ASU that allows a reclassification from accumulated other comprehensive income ("AOCI") to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act (the "Tax Act"). Effective January 1, 2018, we early adopted this ASU and elected to reclassify the income tax effects of the Tax Act from AOCI to retained earnings. This resulted in a $735 million increase to retained earnings and a $735 million decrease to AOCI. Our current accounting policy for releasing income tax effects from other comprehensive income is based on a portfolio approach. Other accounting pronouncements adopted during the periods covered by the consolidated financial statements did not have a material impact on our consolidated financial position, results of operations or cash flows. Accounting Standards Issued But Not Yet Effective In August 2017, the FASB issued an ASU to enhance recognition of the economic results of hedging activities in the financial statements. In addition, this update makes certain targeted improvements to simplify the application of hedge accounting guidance and increase transparency regarding the scope and results of hedging activities. The guidance will generally be applied prospectively and becomes effective for us in the first quarter of 2019, but early adoption is permitted. We continue to evaluate this update to determine the full impact of its adoption but do not expect this ASU to have a material impact on our consolidated financial position, results of operations or cash flows. In March 2017, the FASB issued an ASU to require the premium on callable debt securities to be amortized to the earliest call date. The amortization period for callable debt securities purchased at a discount would not be impacted by the proposed update. Under U.S. GAAP, premiums on callable debt securities are generally amortized over the contractual life of the security. Only in cases when an entity has a large number of similar securities is it allowed to consider estimates of principal prepayments. Amortization of the premium over the contractual life of the instrument can result in losses being recorded for the unamortized premium if the issuer exercises the call feature prior to maturity. The standard will be effective for us in the first quarter of 2019, but early adoption is permitted. We continue to evaluate this update to determine the full impact of its adoption but do not expect this ASU to have a material impact on our consolidated financial position, results of operations or cash flows. In January 2017, the FASB issued an ASU to simplify the accounting for goodwill impairment. The update removes Step 2 of the goodwill impairment test, which requires a hypothetical purchase price allocation. A goodwill impairment will now be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. The standard will be effective for us in the first quarter of 2020, but early adoption is permitted. We continue to evaluate this update to determine the full impact of its adoption but do not expect this ASU to have a material impact on our consolidated financial position, results of operations or cash flows. In February 2016, the FASB issued an ASU that requires lessees to recognize a right-of-use asset and lease liability on their balance sheet for all leases with terms beyond twelve months. Although the distinction between operating and finance leases will continue to exist under the new standard, the recognition and measurement of expenses and cash flows will not change significantly from the current treatment. The ASU requires a transition adoption election using either 1) a modified retrospective approach with periods prior to the adoption date being recast or 2) a prospective adoption approach with a cumulative-effect adjustment recognized to the opening balance of retained earnings on the adoption date with prior periods not restated. We anticipate adopting this standard on January 1, 2019 using the prospective adoption approach. We have reviewed and selected a new lease accounting system and are currently accumulating and processing lease data into the system. We are nearing completion of our efforts to compile a complete inventory of arrangements containing a lease and accumulating the lease data necessary to apply this update. We are currently assessing the impact of other arrangements for embedded leases. We plan to apply practical expedients provided in the update that allow, among other things, not to reassess contracts that commenced prior to the adoption. We also anticipate electing a policy not to recognize right of use assets and lease liabilities related to short-term leases. We continue to evaluate this update and subsequent amendments to the original update to determine the full impact of its adoption on our consolidated financial position, results of operations, cash flows and related disclosures, as well as the impact of adoption on policies, practices and systems. In addition, we are currently analyzing our internal control framework to determine if controls should be added or modified as a result of adopting this standard. Based on the preliminary evaluation of our lease portfolio, we believe the largest impact will be accounting for leases for real estate, as we have a large portfolio of leased properties that are currently accounted for as operating leases. As of December 31, 2017, we had $1.637 billion of future minimum operating lease commitments that are not currently recognized on our consolidated balance sheets. We expect material changes to our consolidated balance sheets as a result of the new standard and will apply these changes prospectively. Other accounting pronouncements issued, but not effective until after September 30, 2018, are not expected to have a material impact on our consolidated financial position, results of operations or cash flows.

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