Income Taxes	3 Months Ended
Mar. 31, 2015
Income Tax [Abstract]
Income Taxes	8. Income Taxes Internal Revenue Service (IRS) examinations have been completed and settled for all years prior to 2009, and the statute of limitations bars any additional tax assessments. The IRS has completed their examinations and issued notices of deficiency for tax years 2009 and 2010. We disagreed with many of their proposed adjustments, and went to IRS Appeals for those years. In the first quarter of 2015, we reached an agreement in principle with IRS Appeals to resolve all issues related to tax years 2009 and 2010, except for calculations of interest. We anticipate signing a closing agreement with the IRS within the next 12 months. Once formalized, this agreement will have an immaterial effect on our income tax expense and result in an immaterial payment of tax and interest. Additionally, several state tax authorities are examining our state income tax returns for years 2006 through 2010. At March 31, 2015, we had a net liability for unrecognized tax benefits of $141 million. Of that amount, $29 million is classified as a current liability in the Condensed Consolidated Statements of Financial Position.

Income Taxes

3 Months Ended

Mar. 31, 2015

8. Income Taxes

Internal Revenue Service (IRS) examinations have been completed and settled for all years prior to 2009, and the statute of limitations bars any additional tax assessments. The IRS has completed their examinations and issued notices of deficiency for tax years 2009 and 2010. We disagreed with many of their proposed adjustments, and went to IRS Appeals for those years.

In the first quarter of 2015, we reached an agreement in principle with IRS Appeals to resolve all issues related to tax years 2009 and 2010, except for calculations of interest. We anticipate signing a closing agreement with the IRS within the next 12 months. Once formalized, this agreement will have an immaterial effect on our income tax expense and result in an immaterial payment of tax and interest.

Additionally, several state tax authorities are examining our state income tax returns for years 2006 through 2010.

At March 31, 2015, we had a net liability for unrecognized tax benefits of $141 million. Of that amount, $29 million is classified as a current liability in the Condensed Consolidated Statements of Financial Position.