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General and Summary of Significant Accounting Policies Effect of Change in Estimate (Tables) | 12 Months Ended
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Dec. 31, 2016
Change in Accounting Estimate [Line Items] |
Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block] | The following table provides a brief description of recent accounting pronouncements that had and/or could have a material impact on the Company’s consolidated financial statements. Accounting pronouncements not listed below were assessed and determined to be either not applicable or are expected to have no material impact on the Company’s consolidated financial statements.
New Accounting Standards Adopted
ASU Number and Name | Description | Date of Adoption | Effect on the financial statements upon adoption
2016-19 — Technical Corrections and Improvements | This standard clarifies that the license of internal-use software shall be accounted for as the acquisition of an intangible asset. Transition Method: retrospective. The adoption of the new guidance did not have an impact on net income, net assets or net equity. | December 31, 2016 | The license fees and capitalized costs of internal-use software previously classified as property plant and equipment of $469 million, the corresponding accumulated amortization of $388 million, and construction in progress of $52 million were reclassified to intangible assets as of December 31, 2015.
2015-03, 2015-15, Interest — Imputation of Interest (Subtopic 835-30) | These standards simplify the presentation of debt issuance costs by requiring that debt issuance costs related to a tranche of debt be presented on the balance sheet as a direct deduction from the carrying amount of that debt, consistent with debt discounts. Debt issuance costs related to a line-of-credit can still be presented as an asset and subsequently amortized over the term of the line-of-credit, regardless of whether there are any outstanding borrowings on the line-of-credit arrangement. The recognition and measurement guidance for debt issuance costs are not affected by the standard. Transition method: retrospective. | January 1, 2016 | Deferred financing costs of $24 million previously classified within other current assets and $357 million previously classified within other noncurrent assets were reclassified to reduce the related debt liabilities as of December 31, 2015.
2015-02, Consolidation — Amendments to the Consolidation Analysis (Topic 810) | The standard makes targeted amendments to the current consolidation guidance and ends the deferral granted to investment companies from applying the VIE guidance. The standard amends the evaluation of whether (1) fees paid to a decision-maker or service providers represent a variable interest, (2) a limited partnership or similar entity has the characteristics of a VIE and (3) a reporting entity is the primary beneficiary of a VIE. Transition method: retrospective. | January 1, 2016 | None, other than that some entities previously consolidated under the voting model are now consolidated under the VIE model.
New Accounting Standards Issued But Not Yet Effective
ASU Number and Name | Description | Date of Adoption | Effect on the financial statements upon adoption
2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment | This standard simplifies the accounting for goodwill impairment by removing the requirement to calculate the implied fair value. Instead, it requires that an entity records an impairment charge based on the excess of a reporting unit's carrying amount over its fair value. Transition method: retrospective. | January 1, 2020. Early adoption is permitted as of January 1, 2017. | The Company is currently evaluating the impact of adopting the standard on its consolidated financial statements.
2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business | This standard provides guidance to assist the entities with evaluating when a set of transferred assets and activities is a business. Transition method: prospective. | January 1, 2018. Early adoption is permitted | The Company is currently evaluating the impact of adopting the standard on its consolidated financial statements.
2016-18, Statement of Cash Flows (Topic 320): Restricted Cash (a consensus of the FASB Emerging Issues Task Force) | This standard requires that a statement of cash flows explain the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents. Therefore, amounts generally described as restricted cash and restricted cash equivalents should be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. Transition method: retrospective. | January 1, 2018. Early adoption is permitted. | The Company is currently evaluating the impact of adopting the standard on its consolidated financial statements.
2016-16, Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory | This standard requires that an entity recognizes the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. Transition method: modified retrospective. | January 1, 2018. Early adoption is permitted. | The Company is currently evaluating the impact of adopting the standard on its consolidated financial statements.
2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Receipts and Cash Payments (a consensus of the Emerging Issues Task Force) | This standard provides specific guidance on how certain cash transactions are presented and classified in the statement of cash flows. Transition method: retrospective. | January 1, 2018. Early adoption is permitted. | The Company is currently evaluating the impact of adopting the standard, but does not anticipate a material impact on its consolidated financial statements.
2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments | The standard updates the impairment model for financial assets measured at amortized cost to an expected loss model rather than an incurred loss model. It also allows for the presentation of credit losses on available-for-sale debt securities as an allowance rather than a write down. Transition method: various. | January 1, 2020. Early adoption is permitted only as of January 1, 2019. | The Company is currently evaluating the impact of adopting the standard on its consolidated financial statements.
2016-09, Compensation — Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting | The standard simplifies the following aspects of accounting for share-based payments awards: accounting for income taxes, classification of excess tax benefits on the statement of cash flows, forfeitures, statutory tax withholding requirements, classification of awards as either equity or liabilities and classification of employee taxes paid on statement of cash flows when an employer withholds shares for tax-withholding purposes. Transition method: The recording of excess tax benefits and tax deficiencies arising from vesting or settlement will be applied prospectively. The elimination of the requirement that excess tax benefits be realized before they are recognized will be adopted on a modified retrospective basis with a cumulative adjustment to the opening balance sheet. | January 1, 2017. | The primary effect of adoption will be the recognition of excess tax benefits in our provision for income taxes in the period when the awards vest or are settled, rather than in paid-in-capital in the period when the excess tax benefits are realized. Upon adoption, the change will result in a decrease of approximately $30 million to net deferred tax liabilities, offset by an increase to retained earnings. We will continue to estimate the number of awards that are expected to vest in our determination of the related periodic compensation cost.
2016-02, Leases (Topic 842) | The standard creates Topic 842, Leases, which supersedes Topic 840, Leases. It introduces a lessee model that brings substantially all leases onto the balance sheet while retaining most of the principles of the existing lessor model in U.S. GAAP and aligning many of those principles with ASC 606, Revenue from Contracts with Customers. Transition method: modified retrospective approach with certain practical expedients. | January 1, 2019. Early adoption is permitted. | The Company is currently evaluating the impact of adopting the standard on its consolidated financial statements. The Company intends to adopt the standard as of January 1, 2019.
2014-09, 2015-14, 2016-08, 2016-10, 2016-12, 2016-20, Revenue from Contracts with Customers (Topic 606) | See discussion of the ASU below: | January 1, 2018. Earlier application is permitted only as of January 1, 2017. | The Company will adopt the standard on January 1, 2018; see below for the evaluation of the impact of its adoption on the consolidated financial statements.
Schedule of Change in Accounting Estimate [Table Text Block] | The impact of the change in approach on service costs for the U.S. and U.K. plans in 2016 is shown below (in millions):
| 2016 Service Cost |  | 2016 Interest Cost
| Disaggregated rate approach |  | Aggregate rate approach |  | Impact of change |  | Disaggregated rate approach |  | Aggregate rate approach |  | Impact of change
U.S. | $ | 13 |  |  | $ | 14 |  |  | $ | (1 | ) |  | $ | 42 |  |  | $ | 51 |  |  | $ | (9 | )
U.K. | 3 |  |  | 4 |  |  | (1 | ) |  | 7 |  |  | 9 |  |  | (2 | )
Total | $ | 16 |  |  | $ | 18 |  |  | $ | (2 | ) |  | $ | 49 |  |  | $ | 60 |  |  | $ | (11 | )

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