|
Debt Outstanding (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2012
|
Dec. 31, 2011
|
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
|
Dec. 31, 2012
Commercial paper
|
Dec. 31, 2011
Commercial paper
|
Dec. 31, 2012
Capitalized lease obligation
|
Dec. 31, 2011
Capitalized lease obligation
|
Dec. 31, 2012
Other
|
Dec. 31, 2011
Other
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Debt Instrument [Line Items] | |||||||||||||||||||||||||
| Total debt | $ 1,720.4 | $ 999.2 | $ 30.0 | $ 45.0 | $ 75.0 | $ 275.0 | $ 275.0 | $ 275.0 | $ 272.5 | $ 272.5 | $ 300.0 | $ 500.0 | $ 500.0 | $ 0 | $ 125.0 | $ 125.0 | $ 250.0 | $ 250.0 | $ 250.0 | $ 265.0 | $ 30.0 | $ 2.2 | $ 1.1 | $ 0.7 | $ 0.6 |
| Less short-term debt and current maturities | (283.3) | (47.2) | |||||||||||||||||||||||
| Debt Instrument Unamortized Discount | (2.3) | (1.8) | |||||||||||||||||||||||
| Plus fair value adjustments | 12.6 | 15.8 | 0.4 | 1.0 | 12.2 | 14.8 | |||||||||||||||||||
| Total long-term debt, net of discount | $ 1,447.4 | $ 966.0 |