Basis of Presentation	6 Months Ended
Jun. 30, 2017
Basis of Presentation:
Basis of Presentation:	1. Basis of Presentation: The accompanying Consolidated Financial Statements and footnotes of the International Business Machines Corporation (IBM or the company) have been prepared in accordance with accounting principles generally accepted in the United States of America (GAAP). The financial statements and footnotes are unaudited. In the opinion of the company’s management, these statements include all adjustments, which are only of a normal recurring nature, necessary to present a fair statement of the company’s results of operations, financial position and cash flows. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amount of assets, liabilities, revenue, costs, expenses and other comprehensive income/(loss) that are reported in the Consolidated Financial Statements and accompanying disclosures. These estimates are based on management’s best knowledge of current events, historical experience, actions that the company may undertake in the future and on various other assumptions that are believed to be reasonable under the circumstances. As a result, actual results may be different from these estimates. Refer to the company’s 2016 Annual Report on pages 71 to 74, for a discussion of the company’s critical accounting estimates. The company revised the classification of certain financing receivables for the three and six months ended June 30, 2016, decreasing net cash provided by operating activities and net cash used in investing activities in the amount of $70 million and $212 million, respectively, which the company concluded to be immaterial to the periods presented. The twelve-month revision for the period ended December 31, 2016 was provided in the company’s 2016 Annual Report on page 26. There was no impact to total GAAP cash flows or free cash flow. In the first quarter of 2017, the company reported a benefit from income taxes of $329 million, and its effective tax rate was (23.1) percent. This was primarily driven by a discrete tax benefit of $582 million from a first-quarter 2017 transaction accounted for under the new Financial Accounting Standards Board (FASB) guidance related to intra-entity transfers of assets. This benefit was partially offset by a discrete tax charge related to foreign audit activity of $99 million. The company had additional discrete tax benefits of $170 million in second-quarter 2017. For the six months ended June 30, 2017, the company reported a benefit from income taxes of $218 million and its effective tax rate was (5.6) percent. The negative effective tax rate in the comparable period of 2016 was due to the resolution of a long-standing Japan tax matter in February 2016. Refer to note 2, “Accounting Changes,” and the Taxes section of the Management Discussion for additional information. Noncontrolling interest amounts of $3.5 million and $3.0 million, net of tax, for the three months ended June 30, 2017 and 2016, respectively, and $7.1 million and $4.4 million, net of tax, for the six months ended June 30, 2017 and 2016, respectively, are included as a reduction within other (income) and expense in the Consolidated Statement of Earnings. Interim results are not necessarily indicative of financial results for a full year. The information included in this Form 10-Q should be read in conjunction with the company’s 2016 Annual Report. Within the financial statements and tables presented, certain columns and rows may not add due to the use of rounded numbers for disclosure purposes. Percentages presented are calculated from the underlying whole-dollar amounts. Certain prior year amounts have been reclassified to conform to the current year presentation. This is annotated where applicable.

1. Basis of Presentation: The accompanying Consolidated Financial Statements and footnotes of the International Business Machines Corporation (IBM or the company) have been prepared in accordance with accounting principles generally accepted in the United States of America (GAAP). The financial statements and footnotes are unaudited. In the opinion of the company’s management, these statements include all adjustments, which are only of a normal recurring nature, necessary to present a fair statement of the company’s results of operations, financial position and cash flows.

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amount of assets, liabilities, revenue, costs, expenses and other comprehensive income/(loss) that are reported in the Consolidated Financial Statements and accompanying disclosures. These estimates are based on management’s best knowledge of current events, historical experience, actions that the company may undertake in the future and on various other assumptions that are believed to be reasonable under the circumstances. As a result, actual results may be different from these estimates. Refer to the company’s 2016 Annual Report on pages 71 to 74, for a discussion of the company’s critical accounting estimates.

The company revised the classification of certain financing receivables for the three and six months ended June 30, 2016, decreasing net cash provided by operating activities and net cash used in investing activities in the amount of $70 million and $212 million, respectively, which the company concluded to be immaterial to the periods presented. The twelve-month revision for the period ended December 31, 2016 was provided in the company’s 2016 Annual Report on page 26. There was no impact to total GAAP cash flows or free cash flow.

In the first quarter of 2017, the company reported a benefit from income taxes of $329 million, and its effective tax rate was (23.1) percent. This was primarily driven by a discrete tax benefit of $582 million from a first-quarter 2017 transaction accounted for under the new Financial Accounting Standards Board (FASB) guidance related to intra-entity transfers of assets. This benefit was partially offset by a discrete tax charge related to foreign audit activity of $99 million. The company had additional discrete tax benefits of $170 million in second-quarter 2017. For the six months ended June 30, 2017, the company reported a benefit from income taxes of $218 million and its effective tax rate was (5.6) percent. The negative effective tax rate in the comparable period of 2016 was due to the resolution of a long-standing Japan tax matter in February 2016. Refer to note 2, “Accounting Changes,” and the Taxes section of the Management Discussion for additional information.

Noncontrolling interest amounts of $3.5 million and $3.0 million, net of tax, for the three months ended June 30, 2017 and 2016, respectively, and $7.1 million and $4.4 million, net of tax, for the six months ended June 30, 2017 and 2016, respectively, are included as a reduction within other (income) and expense in the Consolidated Statement of Earnings.

Interim results are not necessarily indicative of financial results for a full year. The information included in this Form 10-Q should be read in conjunction with the company’s 2016 Annual Report.

Within the financial statements and tables presented, certain columns and rows may not add due to the use of rounded numbers for disclosure purposes. Percentages presented are calculated from the underlying whole-dollar amounts. Certain prior year amounts have been reclassified to conform to the current year presentation. This is annotated where applicable.