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Income Taxes - Summary of Net Operating Loss Carryforwards (Detail) $ in Millions | Dec. 31, 2017 USD ($)
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Operating Loss Carryforwards [Line Items] |
Total Net Operating Loss (NOL) | $ 816
Tax Effected NOL | 182
Valuation Allowance (VA) | (157)
NOL Net of VA | 25
2018 - 2021 Expiration [Member] |
Operating Loss Carryforwards [Line Items] |
Total Net Operating Loss (NOL) | 65
2022 - 2033 Expiration [Member] |
Operating Loss Carryforwards [Line Items] |
Total Net Operating Loss (NOL) | 155
2034 - 2037 Expiration [Member] |
Operating Loss Carryforwards [Line Items] |
Total Net Operating Loss (NOL) | 224
Unlimited Expiration [Member] |
Operating Loss Carryforwards [Line Items] |
Total Net Operating Loss (NOL) | 372
Federal [Member] |
Operating Loss Carryforwards [Line Items] |
Total Net Operating Loss (NOL) | 22
Tax Effected NOL | 5
Valuation Allowance (VA) | (4)
NOL Net of VA | 1
Federal [Member] | 2018 - 2021 Expiration [Member] |
Operating Loss Carryforwards [Line Items] |
Total Net Operating Loss (NOL) | 6
Federal [Member] | 2022 - 2033 Expiration [Member] |
Operating Loss Carryforwards [Line Items] |
Total Net Operating Loss (NOL) | 16
State [Member] |
Operating Loss Carryforwards [Line Items] |
Total Net Operating Loss (NOL) | 145
Tax Effected NOL | 8
Valuation Allowance (VA) | (8)
State [Member] | 2018 - 2021 Expiration [Member] |
Operating Loss Carryforwards [Line Items] |
Total Net Operating Loss (NOL) | 2
State [Member] | 2022 - 2033 Expiration [Member] |
Operating Loss Carryforwards [Line Items] |
Total Net Operating Loss (NOL) | 16
State [Member] | 2034 - 2037 Expiration [Member] |
Operating Loss Carryforwards [Line Items] |
Total Net Operating Loss (NOL) | 127
Foreign [Member] |
Operating Loss Carryforwards [Line Items] |
Total Net Operating Loss (NOL) | 649
Tax Effected NOL | 169
Valuation Allowance (VA) | (145)
NOL Net of VA | 24
Foreign [Member] | 2018 - 2021 Expiration [Member] |
Operating Loss Carryforwards [Line Items] |
Total Net Operating Loss (NOL) | 57
Foreign [Member] | 2022 - 2033 Expiration [Member] |
Operating Loss Carryforwards [Line Items] |
Total Net Operating Loss (NOL) | 123
Foreign [Member] | 2034 - 2037 Expiration [Member] |
Operating Loss Carryforwards [Line Items] |
Total Net Operating Loss (NOL) | 97
Foreign [Member] | Unlimited Expiration [Member] |
Operating Loss Carryforwards [Line Items] |
Total Net Operating Loss (NOL) | $ 372

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- Definition Operating loss carryforwards net of valuation allowance. + References No definition available. + Details
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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319 + Details
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- Definition The portion of the valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from net operating loss carryforwards for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 30 -Paragraph 5 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=75018887&loc=d3e30536-109315 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
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