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Income Taxes Income Taxes (Components of Foreign Income Tax) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Operating Loss Carryforwards [Line Items] |  |  |
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent | 3.00% | 0.00% | 4.00%
Foreign Income Tax Expense (Benefit), Continuing Operations | $ (77) | $ (121) | $ (140)
International [Member] |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Foreign Income Tax Expense (Benefit), Continuing Operations | (81) | (81) | (62)
CANADA |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Foreign Income Tax Expense (Benefit), Continuing Operations | 3 | 6 | (3)
AUSTRALIA |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Foreign Income Tax Expense (Benefit), Continuing Operations | 16 | (24) | (41)
UNITED KINGDOM |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Foreign Income Tax Expense (Benefit), Continuing Operations | $ (15) | $ (22) | $ (34)

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- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the income tax rates. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I) -URI http://asc.fasb.org/extlink&oid=34349781&loc=d3e330036-122817 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 + Details
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- Definition Amount of current and deferred foreign income tax expense (benefit) attributable to income (loss) from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(1)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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