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Debt - Debt (Parenthetical) (Detail) | Dec. 31, 2012
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Senior Notes, interest at 5.65% payable semiannually, principal due on November 15, 2012 [Member] |
Debt Instrument [Line Items] |
Senior notes interest rate | 5.65%
Senior Notes, interest at 5.5% payable semiannually, principal due on November 19, 2012 [Member] |
Debt Instrument [Line Items] |
Senior notes interest rate | 5.50%
Senior Notes, interest at 6.125% payable semiannually, principal due on August 15, 2015 [Member] |
Debt Instrument [Line Items] |
Senior notes interest rate | 6.125%
Senior Notes, interest at 1.35% payable semiannually, principal due on December 1, 2017 [Member] |
Debt Instrument [Line Items] |
Senior notes interest rate | 1.35%
Senior Notes, interest at 2.6% payable semiannually, principal due on December 1, 2022 [Member] |
Debt Instrument [Line Items] |
Senior notes interest rate | 2.60%
Senior Notes, interest at 3.95% payable semiannually, principal due on December 1, 2042 [Member] |
Debt Instrument [Line Items] |
Senior notes interest rate | 3.95%

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- Definition Interest rate stated in the contractual debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Details
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