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Intangibles - Net Book Values of Identified Intangible Assets by Segment (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014
Finite Lived Intangible Assets [Line Items] |  |
Finite lived intangible assets, Beginning balance | $ 73 | $ 68
Additions | 103 | 10
Amortization | (13) | (5)
Currency translation adjustments and other | (2) |
Finite lived intangible assets, Ending balance | 161 | 73
United States [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Finite lived intangible assets, Beginning balance | 57 | 50
Additions | 43 | 10
Amortization | (5) | (3)
Finite lived intangible assets, Ending balance | 95 | 57
Canada (Member) |  |
Finite Lived Intangible Assets [Line Items] |  |
Finite lived intangible assets, Beginning balance | 1 | 2
Additions | 2 |
Amortization | (1) | (1)
Finite lived intangible assets, Ending balance | 2 | 1
International [Member] |  |
Finite Lived Intangible Assets [Line Items] |  |
Finite lived intangible assets, Beginning balance | 15 | 16
Additions | 58 |
Amortization | (7) | (1)
Currency translation adjustments and other | (2) |
Finite lived intangible assets, Ending balance | $ 64 | $ 15

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount of increase (decrease) to assets, excluding financial assets and goodwill, lacking physical substance with a finite life for foreign currency translation adjustments and purchase accounting adjustments. + References No definition available. + Details
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- Definition Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, resulting from a business combination. + References No definition available. + Details
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