Basis of Presentation and Summary of Significant Accounting Policies	9 Months Ended
Sep. 30, 2014
Basis of Presentation [Abstract]
Basis of Presentation and Summary of Significant Accounting Policies [Text Block]	1. BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES The accompanying Condensed Consolidated Financial Statements have been prepared by NCR Corporation (NCR, the Company, we or us) without audit pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (SEC) and, in the opinion of management, include all adjustments (consisting of normal, recurring adjustments, unless otherwise disclosed) necessary for a fair statement of the consolidated results of operations, financial position, and cash flows for each period presented. The consolidated results for the interim periods are not necessarily indicative of results to be expected for the full year. The 2013 year-end Condensed Consolidated Balance Sheet was derived from audited financial statements, but does not include all disclosures required by accounting principles generally accepted in the United States (GAAP). These financial statements should be read in conjunction with NCR’s Form 10-K for the year ended December 31, 2013. On January 10, 2014, the Company completed its acquisition of Digital Insight Corporation (Digital Insight). As a result of the acquisition, the results of Digital Insight are included for the period from January 10, 2014 to September 30, 2014. See Note 4, "Acquisitions," for additional information. Use of Estimates The preparation of financial statements in accordance with GAAP requires management to make estimates and judgments that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and revenues and expenses during the period reported. Actual results could differ from those estimates. Evaluation of Subsequent Events The Company evaluated subsequent events through the date that our Condensed Consolidated Financial Statements were issued. No matters were identified that required adjustment of the Condensed Consolidated Financial Statements or additional disclosure. Out of Period Adjustment During the third quarter of 2014, the Company recorded $5 million in income tax expense related to an error in the calculation of foreign income taxable in the United States for 2013. The Company determined the impact of this error was not material to the previously filed annual or interim financial statements and the effect of correcting this error in the nine months ended September 30, 2014 was not material and is not expected to be material to the 2014 annual financial statements. Reclassifications Certain prior-period amounts have been reclassified in the accompanying Condensed Consolidated Financial Statements and Notes thereto in order to conform to the current period presentation. Related Party Transactions In 2011, concurrent with the sale of a noncontrolling interest in our subsidiary, NCR Brasil - Indústria de Equipamentos para Automação S.A., (NCR Manaus) to Scopus Tecnologia Ltda. (Scopus), we entered into a Master Purchase Agreement (MPA) with Banco Bradesco SA (Bradesco), the parent of Scopus. Through the MPA, Bradesco agreed to purchase up to 30,000 ATMs from us over the 5-year term of the agreement. Pricing of the ATMs will adjust over the term of the MPA using certain formulas which are based on prevailing market pricing. We recognized revenue related to Bradesco totaling $22 million and $54 million during the three and nine months ended September 30, 2014 as compared to $24 million and $101 million during the three and nine months ended September 30, 2013. As of September 30, 2014 and December 31, 2013, we had $15 million and $9 million, respectively, in receivables outstanding from Bradesco. Recent Accounting Pronouncements Adopted In February 2013, the Financial Accounting Standards Board (FASB) issued changes to the accounting for obligations resulting from joint and several liability arrangements. These changes require an entity to measure those joint and several liability arrangements for which the total amount of the obligation is fixed at the reporting date. The total amount of the obligation is determined as the sum of (i) the amount the reporting entity agreed to pay on the basis of its arrangement with its co-obligors, and (ii) any additional amount the reporting entity expects to pay on behalf of its co-obligors. The guidance also requires an entity to disclose the nature and amount of the obligation as well as other information about the obligation. Examples of obligations subject to these requirements include debt arrangements, settled litigation and judicial rulings. The amendments are effective for fiscal years, and interim periods within those years, beginning after December 15, 2013, with early adoption permitted. The implementation of the amended accounting guidance on January 1, 2014 did not have an impact on our consolidated financial statements. In March 2013, the FASB issued amendments to address the accounting for the cumulative translation adjustment when a parent either sells a part or all of its investment in a foreign entity or no longer holds a controlling financial interest in a subsidiary or group of assets that is a nonprofit activity or a business within a foreign entity. The amendments are effective prospectively for fiscal years, and interim reporting periods within those years, beginning after December 15, 2013, with early adoption permitted. The initial adoption on January 1, 2014 did not have an impact on our consolidated financial statements. Issued In April 2014, the FASB issued changes to the criteria for determining which disposals are required to be presented as discontinued operations. The changes require a disposal of a component of an entity or a group of components of an entity to be reported in discontinued operations if the disposal represents a strategic shift that has, or will have, a major effect on an entity’s operations and financial results when any of the following occurs: (i) the component of an entity or group of components of an entity meets the criteria to be classified as held for sale, (ii) the component of an entity or group or components of an entity is disposed of by sale, or (iii) the component of an entity or group of components of an entity is disposed of other than by sale. The amendments apply on a prospective basis to disposals of components of an entity that occur within annual periods beginning on or after December 15, 2014 and interim periods within those years, with early adoption permitted. The implementation of the amended accounting guidance on January 1, 2015 is not expected to have a material impact on our consolidated financial statements. In May 2014, the FASB issued a new revenue recognition standard, superseding previous revenue recognition guidance. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The standard will be effective for the first interim period within annual periods beginning after December 15, 2016, with no early adoption permitted, and can be adopted either retrospectively to each prior reporting period presented or as a cumulative effect adjustment as of the date of adoption. The Company is evaluating the impact that adopting this guidance will have on its consolidated financial statements. In August 2014, the FASB issued new guidance related to disclosures around going concern, including management's responsibility to evaluate whether there is substantial doubt about an entity's ability to continue as a going concern and to provide related disclosures when conditions or events raise substantial doubt about an entity's ability to continue as a going concern. The new standard is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2016, with early adoption permitted. The impact of adopting this guidance on January 1, 2017 is not expected to have a material impact on our consolidated financial statements.

1. BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

The accompanying Condensed Consolidated Financial Statements have been prepared by NCR Corporation (NCR, the Company, we or us) without audit pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (SEC) and, in the opinion of management, include all adjustments (consisting of normal, recurring adjustments, unless otherwise disclosed) necessary for a fair statement of the consolidated results of operations, financial position, and cash flows for each period presented. The consolidated results for the interim periods are not necessarily indicative of results to be expected for the full year. The 2013 year-end Condensed Consolidated Balance Sheet was derived from audited financial statements, but does not include all disclosures required by accounting principles generally accepted in the United States (GAAP). These financial statements should be read in conjunction with NCR’s Form 10-K for the year ended December 31, 2013.

On January 10, 2014, the Company completed its acquisition of Digital Insight Corporation (Digital Insight). As a result of the acquisition, the results of Digital Insight are included for the period from January 10, 2014 to September 30, 2014. See Note 4, "Acquisitions," for additional information.

Use of Estimates The preparation of financial statements in accordance with GAAP requires management to make estimates and judgments that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and revenues and expenses during the period reported. Actual results could differ from those estimates.

Evaluation of Subsequent Events The Company evaluated subsequent events through the date that our Condensed Consolidated Financial Statements were issued. No matters were identified that required adjustment of the Condensed Consolidated Financial Statements or additional disclosure.

Out of Period Adjustment During the third quarter of 2014, the Company recorded $5 million in income tax expense related to an error in the calculation of foreign income taxable in the United States for 2013. The Company determined the impact of this error was not material to the previously filed annual or interim financial statements and the effect of correcting this error in the nine months ended September 30, 2014 was not material and is not expected to be material to the 2014 annual financial statements.

Reclassifications Certain prior-period amounts have been reclassified in the accompanying Condensed Consolidated Financial Statements and Notes thereto in order to conform to the current period presentation.

Related Party Transactions In 2011, concurrent with the sale of a noncontrolling interest in our subsidiary, NCR Brasil - Indústria de Equipamentos para Automação S.A., (NCR Manaus) to Scopus Tecnologia Ltda. (Scopus), we entered into a Master Purchase Agreement (MPA) with Banco Bradesco SA (Bradesco), the parent of Scopus. Through the MPA, Bradesco agreed to purchase up to 30,000 ATMs from us over the 5-year term of the agreement. Pricing of the ATMs will adjust over the term of the MPA using certain formulas which are based on prevailing market pricing. We recognized revenue related to Bradesco totaling $22 million and $54 million during the three and nine months ended September 30, 2014 as compared to $24 million and $101 million during the three and nine months ended September 30, 2013. As of September 30, 2014 and December 31, 2013, we had $15 million and $9 million, respectively, in receivables outstanding from Bradesco.

Recent Accounting Pronouncements

Adopted

In February 2013, the Financial Accounting Standards Board (FASB) issued changes to the accounting for obligations resulting from joint and several liability arrangements. These changes require an entity to measure those joint and several liability arrangements for which the total amount of the obligation is fixed at the reporting date. The total amount of the obligation is determined as the sum of (i) the amount the reporting entity agreed to pay on the basis of its arrangement with its co-obligors, and (ii) any additional amount the reporting entity expects to pay on behalf of its co-obligors. The guidance also requires an entity to disclose the nature and amount of the obligation as well as other information about the obligation. Examples of obligations subject to these requirements include debt arrangements, settled litigation and judicial rulings. The amendments are effective for fiscal years, and interim periods within those years, beginning after December 15, 2013, with early adoption permitted. The implementation of the amended accounting guidance on January 1, 2014 did not have an impact on our consolidated financial statements.

In March 2013, the FASB issued amendments to address the accounting for the cumulative translation adjustment when a parent either sells a part or all of its investment in a foreign entity or no longer holds a controlling financial interest in a subsidiary or group of assets that is a nonprofit activity or a business within a foreign entity. The amendments are effective prospectively for fiscal years, and interim reporting periods within those years, beginning after December 15, 2013, with early adoption permitted. The initial adoption on January 1, 2014 did not have an impact on our consolidated financial statements.

Issued

In April 2014, the FASB issued changes to the criteria for determining which disposals are required to be presented as discontinued operations. The changes require a disposal of a component of an entity or a group of components of an entity to be reported in discontinued operations if the disposal represents a strategic shift that has, or will have, a major effect on an entity’s operations and financial results when any of the following occurs: (i) the component of an entity or group of components of an entity meets the criteria to be classified as held for sale, (ii) the component of an entity or group or components of an entity is disposed of by sale, or (iii) the component of an entity or group of components of an entity is disposed of other than by sale. The amendments apply on a prospective basis to disposals of components of an entity that occur within annual periods beginning on or after December 15, 2014 and interim periods within those years, with early adoption permitted. The implementation of the amended accounting guidance on January 1, 2015 is not expected to have a material impact on our consolidated financial statements.

In May 2014, the FASB issued a new revenue recognition standard, superseding previous revenue recognition guidance. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The standard will be effective for the first interim period within annual periods beginning after December 15, 2016, with no early adoption permitted, and can be adopted either retrospectively to each prior reporting period presented or as a cumulative effect adjustment as of the date of adoption. The Company is evaluating the impact that adopting this guidance will have on its consolidated financial statements.

In August 2014, the FASB issued new guidance related to disclosures around going concern, including management's responsibility to evaluate whether there is substantial doubt about an entity's ability to continue as a going concern and to provide related disclosures when conditions or events raise substantial doubt about an entity's ability to continue as a going concern. The new standard is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2016, with early adoption permitted. The impact of adopting this guidance on January 1, 2017 is not expected to have a material impact on our consolidated financial statements.