Accounting Policies	9 Months Ended
Sep. 30, 2017
Accounting Policies [Abstract]
Accounting Policies	ACCOUNTING POLICIES In our opinion, the accompanying unaudited condensed consolidated financial statements contain all adjustments, of a normal recurring nature, necessary to fairly state our financial position at September 30, 2017, our results of operations and comprehensive income (loss) for the three-month and nine-month periods ended September 30, 2017 and 2016, and cash flows and changes in shareholders' equity for the nine-month periods ended September 30, 2017 and 2016. The condensed consolidated balance sheet at December 31, 2016 was derived from audited financial statements, but does not include all disclosures required by accounting principles generally accepted in the United States of America. Reclassification. Certain prior year amounts have been reclassified to conform to the 2017 presentation in the condensed consolidated financial statements. Recently Adopted Accounting Pronouncements. In July 2015, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2015-11, "Inventory (Topic 330): Simplifying the Measurement of Inventory," which requires that inventory within the scope of the guidance be measured at the lower of cost and net realizable value, as opposed to the lower of cost or market. We adopted ASU 2015-11 on January 1, 2017. The adoption of the new standard did not have an impact on our financial position or results of operations. In March 2016, the FASB issued ASU 2016-09, “Compensation-Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting,” which requires the tax effects related to share-based payments to be recorded through the income statement, simplifies the accounting requirements for forfeitures and employers' tax withholding requirements, and modifies the presentation of certain items on the statement of cash flows. We adopted ASU 2016-09 on January 1, 2017, using the retrospective options for reclassifying excess tax benefit from stock-based compensation and employee withholding taxes paid on stock-based compensation within our statements of cash flows. The adoption of the remaining requirements did not have an impact on our financial position or results of operation. As a result of this adoption, we increased cash flows from (for) operating activities and decreased cash flows from (for) financing activities by $61 million for the nine-month period ended September 30, 2016. For full year 2016 and 2015, we currently estimate increasing cash flows from (for) operating activities and decreasing cash flows from (for) financing activities by $62 million and $111 million, respectively. Subsequent to adoption, tax effects related to employee share-based payments will be recorded to income tax expense, thus increasing the volatility in our effective tax rate. In January 2017, the FASB issued ASU 2017-04, "Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment," which removes Step 2 of the goodwill impairment test. 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. We early adopted ASU 2017-04 effective January 1, 2017. The adoption of the new standard did not have an impact on our financial position or results of operations. Recently Issued Accounting Pronouncements. In May 2014, the FASB issued a new standard for revenue recognition, Accounting Standards Codification ("ASC") 606. The purpose of ASC 606 is to provide a single, comprehensive revenue recognition model for all contracts with customers to improve comparability across industries. The standard allows for either a full retrospective or modified retrospective method of adoption. We will adopt this standard on its effective date, January 1, 2018, under the full retrospective method of adoption. We do not expect the adoption will have a material impact on our financial position or results of operations. We have finalized our accounting policy, trained our business units on the new standard and are currently evaluating our internal controls under the new standard. We have not experienced significant issues in our implementation process. In January 2016, the FASB issued ASU 2016-01, “Financial Instruments-Overall: Recognition and Measurement of Financial Assets and Financial Liabilities,” which primarily affects the accounting for equity investments, financial liabilities under the fair value option, and the presentation and disclosure requirements for financial instruments. ASU 2016-01 is effective for us for annual periods beginning January 1, 2018. The adoption of this standard is not expected to have a material impact on our financial position or results of operations. In February 2016, the FASB issued a new standard for leases, ASC 842, which changes the accounting model for identifying and accounting for leases. ASC 842 is effective for us for annual periods beginning January 1, 2019 and requires retrospective application. We expect this standard to increase our total assets and total liabilities; however, we are currently evaluating the magnitude of the impact the adoption of this new standard will have on our financial position and results of operations. A. ACCOUNTING POLICIES (Concluded) In June 2016, the FASB issued ASU 2016-13, "Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments," which modifies the methodology for recognizing loss impairments on certain types of financial instruments. The new methodology requires an entity to estimate the credit losses expected over the life of an exposure. Additionally, ASU 2016-13 amends the current available-for-sale security other-than-temporary impairment model for debt securities. ASU 2016-13 is effective for us for annual periods beginning January 1, 2020. We are currently evaluating the impact the adoption of this new standard will have on our financial position and results of operations. In October 2016, the FASB issued ASU 2016-16, "Income Taxes (Topic 740): Intra-Entity Asset Transfers of Assets Other than Inventory," which no longer allows the tax effects of intra-entity asset transfers (intercompany sales) of assets other than inventory to be deferred until the transferred asset is sold to a third party or otherwise recovered through use. The new standard requires the tax expense from the sale of the asset in the seller’s tax jurisdiction and the corresponding basis differences in the buyer’s jurisdiction to be recognized when the transfer occurs even though the pre-tax effects of the transaction are eliminated in consolidation. ASU 2016-16 is effective for us for annual periods beginning January 1, 2018. The adoption of this standard is not expected to have a material impact on our financial position or results of operations. In March 2017, the FASB issued ASU 2017-07, "Compensation-Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost," which modifies the presentation of net periodic pension and post-retirement benefit cost ("net benefit cost") in the income statement and the components eligible for capitalization as assets. ASU 2017-07 is effective for us for annual periods beginning January 1, 2018. We do not expect the adoption of the new standard will have a material impact on our financial position or results of operations. For full year 2016, we expect $31 million of expense to be retrospectively reclassified from operating profit to other income (expense), net, within our results of operations. For the nine-month period ended September 30, 2017, we expect $22 million of expense to be retrospectively reclassified from operating profit to other income (expense), net, within our results of operations. In May 2017, the FASB issued ASU 2017-09, "Compensation-Stock Compensation (Topic 718): Scope of Modification Accounting," which clarifies when to account for a change to the terms or conditions of a share-based payment award as a modification. ASU 2017-09 is effective for us for annual periods beginning January 1, 2018, and is applied prospectively. Upon adoption, modification accounting is required only if the fair value, the vesting conditions, or the classification of the award (as equity or liability) changes as a result of the change in terms or conditions. In August 2017, the FASB issued ASU 2017-12, "Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities," which improves and simplifies accounting rules around hedge accounting and better portrays the economic results of an entity’s risk management activities in its financial statements. ASU 2017-12 is effective for us for annual periods beginning January 1, 2019. We are currently evaluating the impact the adoption of this new standard will have on our financial position and results of operations.

ACCOUNTING POLICIES

In our opinion, the accompanying unaudited condensed consolidated financial statements contain all adjustments, of a normal recurring nature, necessary to fairly state our financial position at September 30, 2017, our results of operations and comprehensive income (loss) for the three-month and nine-month periods ended September 30, 2017 and 2016, and cash flows and changes in shareholders' equity for the nine-month periods ended September 30, 2017 and 2016. The condensed consolidated balance sheet at December 31, 2016 was derived from audited financial statements, but does not include all disclosures required by accounting principles generally accepted in the United States of America.

Reclassification. Certain prior year amounts have been reclassified to conform to the 2017 presentation in the condensed consolidated financial statements.

Recently Adopted Accounting Pronouncements. In July 2015, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2015-11, "Inventory (Topic 330): Simplifying the Measurement of Inventory," which requires that inventory within the scope of the guidance be measured at the lower of cost and net realizable value, as opposed to the lower of cost or market. We adopted ASU 2015-11 on January 1, 2017. The adoption of the new standard did not have an impact on our financial position or results of operations.

In March 2016, the FASB issued ASU 2016-09, “Compensation-Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting,” which requires the tax effects related to share-based payments to be recorded through the income statement, simplifies the accounting requirements for forfeitures and employers' tax withholding requirements, and modifies the presentation of certain items on the statement of cash flows. We adopted ASU 2016-09 on January 1, 2017, using the retrospective options for reclassifying excess tax benefit from stock-based compensation and employee withholding taxes paid on stock-based compensation within our statements of cash flows. The adoption of the remaining requirements did not have an impact on our financial position or results of operation. As a result of this adoption, we increased cash flows from (for) operating activities and decreased cash flows from (for) financing activities by $61 million for the nine-month period ended September 30, 2016. For full year 2016 and 2015, we currently estimate increasing cash flows from (for) operating activities and decreasing cash flows from (for) financing activities by $62 million and $111 million, respectively. Subsequent to adoption, tax effects related to employee share-based payments will be recorded to income tax expense, thus increasing the volatility in our effective tax rate.

In January 2017, the FASB issued ASU 2017-04, "Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment," which removes Step 2 of the goodwill impairment test. 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. We early adopted ASU 2017-04 effective January 1, 2017. The adoption of the new standard did not have an impact on our financial position or results of operations.

Recently Issued Accounting Pronouncements. In May 2014, the FASB issued a new standard for revenue recognition, Accounting Standards Codification ("ASC") 606. The purpose of ASC 606 is to provide a single, comprehensive revenue recognition model for all contracts with customers to improve comparability across industries. The standard allows for either a full retrospective or modified retrospective method of adoption. We will adopt this standard on its effective date, January 1, 2018, under the full retrospective method of adoption. We do not expect the adoption will have a material impact on our financial position or results of operations. We have finalized our accounting policy, trained our business units on the new standard and are currently evaluating our internal controls under the new standard. We have not experienced significant issues in our implementation process.

In January 2016, the FASB issued ASU 2016-01, “Financial Instruments-Overall: Recognition and Measurement of Financial Assets and Financial Liabilities,” which primarily affects the accounting for equity investments, financial liabilities under the fair value option, and the presentation and disclosure requirements for financial instruments. ASU 2016-01 is effective for us for annual periods beginning January 1, 2018. The adoption of this standard is not expected to have a material impact on our financial position or results of operations.

In February 2016, the FASB issued a new standard for leases, ASC 842, which changes the accounting model for identifying and accounting for leases. ASC 842 is effective for us for annual periods beginning January 1, 2019 and requires retrospective application. We expect this standard to increase our total assets and total liabilities; however, we are currently evaluating the magnitude of the impact the adoption of this new standard will have on our financial position and results of operations.

A. ACCOUNTING POLICIES (Concluded)

In June 2016, the FASB issued ASU 2016-13, "Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments," which modifies the methodology for recognizing loss impairments on certain types of financial instruments. The new methodology requires an entity to estimate the credit losses expected over the life of an exposure. Additionally, ASU 2016-13 amends the current available-for-sale security other-than-temporary impairment model for debt securities. ASU 2016-13 is effective for us for annual periods beginning January 1, 2020. We are currently evaluating the impact the adoption of this new standard will have on our financial position and results of operations.

In October 2016, the FASB issued ASU 2016-16, "Income Taxes (Topic 740): Intra-Entity Asset Transfers of Assets Other than Inventory," which no longer allows the tax effects of intra-entity asset transfers (intercompany sales) of assets other than inventory to be deferred until the transferred asset is sold to a third party or otherwise recovered through use. The new standard requires the tax expense from the sale of the asset in the seller’s tax jurisdiction and the corresponding basis differences in the buyer’s jurisdiction to be recognized when the transfer occurs even though the pre-tax effects of the transaction are eliminated in consolidation. ASU 2016-16 is effective for us for annual periods beginning January 1, 2018. The adoption of this standard is not expected to have a material impact on our financial position or results of operations.

In March 2017, the FASB issued ASU 2017-07, "Compensation-Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost," which modifies the presentation of net periodic pension and post-retirement benefit cost ("net benefit cost") in the income statement and the components eligible for capitalization as assets. ASU 2017-07 is effective for us for annual periods beginning January 1, 2018. We do not expect the adoption of the new standard will have a material impact on our financial position or results of operations. For full year 2016, we expect $31 million of expense to be retrospectively reclassified from operating profit to other income (expense), net, within our results of operations. For the nine-month period ended September 30, 2017, we expect $22 million of expense to be retrospectively reclassified from operating profit to other income (expense), net, within our results of operations.

In May 2017, the FASB issued ASU 2017-09, "Compensation-Stock Compensation (Topic 718): Scope of Modification Accounting," which clarifies when to account for a change to the terms or conditions of a share-based payment award as a modification. ASU 2017-09 is effective for us for annual periods beginning January 1, 2018, and is applied prospectively. Upon adoption, modification accounting is required only if the fair value, the vesting conditions, or the classification of the award (as equity or liability) changes as a result of the change in terms or conditions.

In August 2017, the FASB issued ASU 2017-12, "Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities," which improves and simplifies accounting rules around hedge accounting and better portrays the economic results of an entity’s risk management activities in its financial statements. ASU 2017-12 is effective for us for annual periods beginning January 1, 2019. We are currently evaluating the impact the adoption of this new standard will have on our financial position and results of operations.