Recently Issued Accounting Pronouncements	6 Months Ended
Jun. 30, 2015
Accounting Changes and Error Corrections [Abstract]
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements Pronouncements Not Yet Adopted In July 2015, the Financial Accounting Standards Board (“FASB”) issued guidance regarding simplifying the measurement of inventory. Under prior guidance, inventory is measured at the lower of cost or market, where market is defined as replacement cost, with a ceiling of net realizable value and a floor or net realizable value less a normal profit margin. The amended guidance requires the measurement of inventory at the lower of cost and net realizable value. Net realizable value is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. This guidance is effective prospectively for interim and annual periods beginning after December 15, 2016 and early application is permitted. We are evaluating the impact of the guidance on our financial condition, results of operations and financial statement disclosures. In May 2015, the FASB issued guidance regarding the disclosure of investments which are valued at fair value using the net asset value per share practical expedient. The amended guidance removes the requirement to categorize such investments within the fair value hierarchy. The amendments also remove the requirement to make certain disclosures for all investment that are eligible to be measured at fair value using the net asset value per share practical expedient, instead limiting such disclosures to those investments measured at fair value using the practical expedient. This guidance is effective for interim and annual periods beginning after December 15, 2015. The guidance must be applied retrospectively and early adoption is permitted. We are evaluating the impact of the guidance on our financial condition, results of operations and financial statement disclosures. In May 2014, the FASB issued guidance on recognizing revenue from contracts with customers. The guidance outlines a single comprehensive model to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance, including industry-specific guidance. The core principle of the model is that an entity recognizes revenue to portray the transfer of goods and 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 also expands disclosure requirements regarding revenue recognition. This guidance is effective for interim and annual reporting periods beginning after December 15, 2017 and may be applied retrospectively to each prior period presented or with the cumulative effect recognized as of the date of initial application. Early adoption is permitted for interim and annual reporting periods beginning after December 15, 2016. We are evaluating the impact of the guidance on our financial condition and results of operations. Recently Adopted Pronouncements In April 2015, the FASB issued guidance which changes the presentation of debt issuance costs in the balance sheet. Under prior guidance, debt issuance costs are reflected on the balance sheet as an asset. This amendment requires such costs to be reflected as a direct deduction to the related debt liability, with retrospective application upon adoption. We elected to early adopt this standard effective in the first quarter of 2015. Accordingly, $4 million of debt issuance costs are now reflected within long-term debt as of June 30, 2015 and December 31, 2014. These costs were previously recorded within other non-current assets. In April 2015, the FASB issued guidance regarding whether a cloud computing arrangement includes a software license. If a cloud computing arrangement includes a software license then the software license element of the arrangement should be accounted for in a manner that is consistent with accounting for the acquisition of other software licenses. If a cloud computing arrangement does not include a software license then the arrangement should be accounted for as a service contract. This guidance is effective for interim and annual periods beginning after December 15, 2015. The guidance may be applied (1) retrospectively or (2) prospectively to arrangements entered into, or materially modified after the effective date. Early adoption is permitted. We elected to early adopt this standard effective in the second quarter of 2015 with retrospective application. Our adoption of this guidance did not have any impact on our financial condition or results of operations. In February 2015, FASB issued guidance which amends the requirements to determine whether a company needs to consolidate certain legal entities into its reported financial statements. Specifically, the amendment: (1) modifies the evaluation of whether limited partnerships and similar legal entities are variable interest entities (“VIEs”) or voting interest entities, (2) eliminates the presumption that a general partner should consolidate a limited partnership and (3) affects the consolidation analysis of reporting entities that are involved with VIEs. This guidance is effective for interim and annual reporting periods beginning after December 15, 2015 and may be applied retrospectively to each prior period presented or with the cumulative effect recognized as of the date of initial application. We elected to early adopt this standard effective in the second quarter of 2015 with retrospective application. Our adoption of this guidance did not have any impact on our financial condition or results of operations. In January 2015, the FASB issued guidance which eliminates from GAAP the concept of an extraordinary item. Under prior guidance, an event or transaction must be unusual in nature and must occur infrequently to be considered an extraordinary item. Additionally, under prior guidance extraordinary items are separately presented in a company’s income statement and disclosed in the footnotes to the company’s financial statements. As a result of the new guidance regarding extraordinary items, a company will no longer (1) segregate an extraordinary item from the results of ordinary operations, (2) separately present an extraordinary item on its income statement, and (3) disclose income taxes and earnings-per-share data applicable to an extraordinary item. We elected to early adopt this standard effective in the first quarter of 2015 with retrospective application. Our adoption of this guidance did not have any impact on our financial condition or results of operations. In June 2014, as a result of inconsistency in practice, the FASB issued guidance related to the recognition of compensation on employee share-based payments in which the terms of the award provide that a performance target that affects vesting could be achieved after the requisite service period. The standard states that the performance target should not be reflected in estimating the grant date fair value of the award. Compensation cost should be recognized in the period in which it becomes probable that the performance target will be achieved and should represent the compensation cost attributable to the periods for which the service has already been rendered. If the performance target becomes probable of being achieved before the end of the requisite service period, the remaining unrecognized compensation cost should be recognized prospectively over the remaining requisite service period. We elected to early adopt this standard effective in the first quarter of 2015 with retrospective application. Our adoption of this guidance did not have any impact on our financial condition or results of operations as we were using the accounting prescribed in the new guidance. In April 2014, the FASB issued guidance related to the reporting of discontinued operations. The guidance states that the disposal of a business or operation is required to be reported as discontinued operations if the disposal represents a strategic shift that will have a major effect on an entity’s operations and financial results. The guidance also expands disclosures about discontinued operations and the disposal of significant businesses that did not qualify for discontinued operations presentation. This standard is effective prospectively, for disposals (or businesses that qualify as “held for sale”) that occur within annual periods beginning on or after December 15, 2014 and interim periods within those years. Our adoption of this guidance effective in the first quarter of 2015 did not have any impact on our financial condition or results of operations. In January 2014, the FASB issued guidance related to service concession arrangements. A service concession arrangement is an arrangement between a public-sector entity grantor and an operating entity under which the operating entity operates the grantor's infrastructure (for example, airports, roads and bridges). The guidance states that service concession arrangements should not be accounted for under the guidance of Accounting Standards Codification Topic 840, Leases, but rather other guidance as deemed appropriate. This guidance is effective for interim and reporting periods beginning on or after December 15, 2014. The guidance requires opening retained earnings in the year of adoption to reflect the cumulative historical impact of any arrangements existing at the date of adoption, and the new guidance to be applied to the financial statements on a prospective basis. Our adoption of this guidance effective in the first quarter of 2015 did not have any impact on our financial condition or results of operations.

Recently Issued Accounting Pronouncements

Pronouncements Not Yet Adopted

In July 2015, the Financial Accounting Standards Board (“FASB”) issued guidance regarding simplifying the measurement of inventory. Under prior guidance, inventory is measured at the lower of cost or market, where market is defined as replacement cost, with a ceiling of net realizable value and a floor or net realizable value less a normal profit margin. The amended guidance requires the measurement of inventory at the lower of cost and net realizable value. Net realizable value is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. This guidance is effective prospectively for interim and annual periods beginning after December 15, 2016 and early application is permitted. We are evaluating the impact of the guidance on our financial condition, results of operations and financial statement disclosures.

In May 2015, the FASB issued guidance regarding the disclosure of investments which are valued at fair value using the net asset value per share practical expedient. The amended guidance removes the requirement to categorize such investments within the fair value hierarchy. The amendments also remove the requirement to make certain disclosures for all investment that are eligible to be measured at fair value using the net asset value per share practical expedient, instead limiting such disclosures to those investments measured at fair value using the practical expedient. This guidance is effective for interim and annual periods beginning after December 15, 2015. The guidance must be applied retrospectively and early adoption is permitted. We are evaluating the impact of the guidance on our financial condition, results of operations and financial statement disclosures.

In May 2014, the FASB issued guidance on recognizing revenue from contracts with customers. The guidance outlines a single comprehensive model to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance, including industry-specific guidance. The core principle of the model is that an entity recognizes revenue to portray the transfer of goods and 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 also expands disclosure requirements regarding revenue recognition. This guidance is effective for interim and annual reporting periods beginning after December 15, 2017 and may be applied retrospectively to each prior period presented or with the cumulative effect recognized as of the date of initial application. Early adoption is permitted for interim and annual reporting periods beginning after December 15, 2016. We are evaluating the impact of the guidance on our financial condition and results of operations.

Recently Adopted Pronouncements

In April 2015, the FASB issued guidance which changes the presentation of debt issuance costs in the balance sheet. Under prior guidance, debt issuance costs are reflected on the balance sheet as an asset. This amendment requires such costs to be reflected as a direct deduction to the related debt liability, with retrospective application upon adoption. We elected to early adopt this standard effective in the first quarter of 2015. Accordingly, $4 million of debt issuance costs are now reflected within long-term debt as of June 30, 2015 and December 31, 2014. These costs were previously recorded within other non-current assets.

In April 2015, the FASB issued guidance regarding whether a cloud computing arrangement includes a software license. If a cloud computing arrangement includes a software license then the software license element of the arrangement should be accounted for in a manner that is consistent with accounting for the acquisition of other software licenses. If a cloud computing arrangement does not include a software license then the arrangement should be accounted for as a service contract. This guidance is effective for interim and annual periods beginning after December 15, 2015. The guidance may be applied (1) retrospectively or (2) prospectively to arrangements entered into, or materially modified after the effective date. Early adoption is permitted. We elected to early adopt this standard effective in the second quarter of 2015 with retrospective application. Our adoption of this guidance did not have any impact on our financial condition or results of operations.

In February 2015, FASB issued guidance which amends the requirements to determine whether a company needs to consolidate certain legal entities into its reported financial statements. Specifically, the amendment: (1) modifies the evaluation of whether limited partnerships and similar legal entities are variable interest entities (“VIEs”) or voting interest entities, (2) eliminates the presumption that a general partner should consolidate a limited partnership and (3) affects the consolidation analysis of reporting entities that are involved with VIEs. This guidance is effective for interim and annual reporting periods beginning after December 15, 2015 and may be applied retrospectively to each prior period presented or with the cumulative effect recognized as of the date of initial application. We elected to early adopt this standard effective in the second quarter of 2015 with retrospective application. Our adoption of this guidance did not have any impact on our financial condition or results of operations.

In January 2015, the FASB issued guidance which eliminates from GAAP the concept of an extraordinary item. Under prior guidance, an event or transaction must be unusual in nature and must occur infrequently to be considered an extraordinary item. Additionally, under prior guidance extraordinary items are separately presented in a company’s income statement and disclosed in the footnotes to the company’s financial statements. As a result of the new guidance regarding extraordinary items, a company will no longer (1) segregate an extraordinary item from the results of ordinary operations, (2) separately present an extraordinary item on its income statement, and (3) disclose income taxes and earnings-per-share data applicable to an extraordinary item. We elected to early adopt this standard effective in the first quarter of 2015 with retrospective application. Our adoption of this guidance did not have any impact on our financial condition or results of operations.

In June 2014, as a result of inconsistency in practice, the FASB issued guidance related to the recognition of compensation on employee share-based payments in which the terms of the award provide that a performance target that affects vesting could be achieved after the requisite service period. The standard states that the performance target should not be reflected in estimating the grant date fair value of the award. Compensation cost should be recognized in the period in which it becomes probable that the performance target will be achieved and should represent the compensation cost attributable to the periods for which the service has already been rendered. If the performance target becomes probable of being achieved before the end of the requisite service period, the remaining unrecognized compensation cost should be recognized prospectively over the remaining requisite service period. We elected to early adopt this standard effective in the first quarter of 2015 with retrospective application. Our adoption of this guidance did not have any impact on our financial condition or results of operations as we were using the accounting prescribed in the new guidance.

In April 2014, the FASB issued guidance related to the reporting of discontinued operations. The guidance states that the disposal of a business or operation is required to be reported as discontinued operations if the disposal represents a strategic shift that will have a major effect on an entity’s operations and financial results. The guidance also expands disclosures about discontinued operations and the disposal of significant businesses that did not qualify for discontinued operations presentation. This standard is effective prospectively, for disposals (or businesses that qualify as “held for sale”) that occur within annual periods beginning on or after December 15, 2014 and interim periods within those years. Our adoption of this guidance effective in the first quarter of 2015 did not have any impact on our financial condition or results of operations.

In January 2014, the FASB issued guidance related to service concession arrangements. A service concession arrangement is an arrangement between a public-sector entity grantor and an operating entity under which the operating entity operates the grantor's infrastructure (for example, airports, roads and bridges). The guidance states that service concession arrangements should not be accounted for under the guidance of Accounting Standards Codification Topic 840, Leases, but rather other guidance as deemed appropriate. This guidance is effective for interim and reporting periods beginning on or after December 15, 2014. The guidance requires opening retained earnings in the year of adoption to reflect the cumulative historical impact of any arrangements existing at the date of adoption, and the new guidance to be applied to the financial statements on a prospective basis. Our adoption of this guidance effective in the first quarter of 2015 did not have any impact on our financial condition or results of operations.