Current report filing

Debt Outstanding (Parenthetical) (Detail)

v2.4.0.8
Debt Outstanding (Parenthetical) (Detail)
Dec. 31, 2012
Notes, 7.34%, due in installments through May 2014
Dec. 31, 2011
Notes, 7.34%, due in installments through May 2014
May 31, 2007
Notes, 7.34%, due in installments through May 2014
Dec. 31, 2012
Notes, 4.45%, due December 2014
Dec. 31, 2011
Notes, 4.45%, due December 2014
Nov. 04, 2009
Notes, 4.45%, due December 2014
Dec. 31, 2012
Notes, 6.30%, due July 2017
Dec. 31, 2011
Notes, 6.30%, due July 2017
Jun. 28, 2007
Notes, 6.30%, due July 2017
Dec. 31, 2012
Notes, 3.30%, due Dec 2022
Dec. 17, 2012
Notes, 3.30%, due Dec 2022
Dec. 31, 2011
Notes, 3.30%, due Dec 2022
Dec. 31, 2012
Debentures, 6.90%, due July 2028
Dec. 31, 2011
Debentures, 6.90%, due July 2028
Dec. 31, 2012
Notes, 7.00%, due July 2037
Dec. 31, 2011
Notes, 7.00%, due July 2037
Jun. 28, 2007
Notes, 7.00%, due July 2037
Debt Instrument [Line Items]                                  
Debt, interest rate 7.34% 7.34% 7.34% 4.45% 4.45% 4.45% 6.30% 6.30% 6.30% 3.30% 3.30% 3.30% 6.90% 6.90% 7.00% 7.00% 7.00%
Debt, maturity date 2014-05     2014-12 2014-12   2017-07 2017-07   2022-12   2022-12 2028-07 2028-07 2037-07 2037-07