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Future Minimum Operating Lease Payments and Committed Subleases Under Non-Cancelable Leases (Detail) (USD $) In Millions, unless otherwise specified | Dec. 31, 2012
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Commitments and Contingencies [Line Items] |
Operating lease obligations - Total Amounts | $ 72
Operating lease obligations - 2013 | 21
Operating lease obligations - 2014 | 18
Operating lease obligations - 2015 | 16
Operating lease obligations - 2016 | 10
Operating lease obligations - 2017 | 7
Sublease rentals - Total Amounts | (14)
Sublease rentals - 2013 | (3)
Sublease rentals - 2014 | (3)
Sublease rentals - 2015 | (3)
Sublease rentals - 2016 | (3)
Sublease rentals - 2017 | (2)
Total committed operating leases less sublease rentals - Total Amounts | 58
Total committed operating leases less sublease rentals - 2013 | 18
Total committed operating leases less sublease rentals - 2014 | 15
Total committed operating leases less sublease rentals - 2015 | 13
Total committed operating leases less sublease rentals - 2016 | 7
Total committed operating leases less sublease rentals - 2017 | $ 5

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- Definition Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 13 -Paragraph 16 -Subparagraph b(i) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 13 -Paragraph 122 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 3) -URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717 + Details
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