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Business Segments - Summary of Operating Results by Segment (Detail) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013
Revenue: |  |  |  |
Total Revenue | $ 952 | $ 1,070 | $ 2,029 | $ 2,142
Operating Profit: |  |  |  |
Total Operating Profit | 43 | 53 | 105 | 111
Operating Profit %: |  |  |  |
Total Operating Profit % | 4.50% | 5.00% | 5.20% | 5.20%
United States (Member) |  |  |  |
Revenue: |  |  |  |
Total Revenue | 662 | 742 | 1,366 | 1,454
Operating Profit: |  |  |  |
Total Operating Profit | 28 | 41 | 58 | 74
Operating Profit %: |  |  |  |
Total Operating Profit % | 4.20% | 5.50% | 4.20% | 5.10%
Canada (Member) |  |  |  |
Revenue: |  |  |  |
Total Revenue | 125 | 172 | 316 | 387
Operating Profit: |  |  |  |
Total Operating Profit | 2 | 5 | 18 | 22
Operating Profit %: |  |  |  |
Total Operating Profit % | 1.60% | 2.90% | 5.70% | 5.70%
International [Member] |  |  |  |
Revenue: |  |  |  |
Total Revenue | 165 | 156 | 347 | 301
Operating Profit: |  |  |  |
Total Operating Profit | $ 13 | $ 7 | $ 29 | $ 15
Operating Profit %: |  |  |  |
Total Operating Profit % | 7.90% | 4.50% | 8.40% | 5.00%

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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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