|
Debt Outstanding (Detail) (USD $)
In Millions, unless otherwise specified |
Mar. 31, 2013
|
Dec. 31, 2012
|
|---|---|---|
| Debt Outstanding [Line Items] | ||
| Total debt | $ 1,613.9 | $ 1,720.4 |
| Less short-term debt and current maturities | (176.7) | (283.3) |
| Less unamortized discounts | (2.3) | (2.3) |
| Plus fair value adjustments | 10.7 | 12.6 |
| Total long-term debt, net | 1,445.6 | 1,447.4 |
|
Commercial Paper [Member]
|
||
| Debt Outstanding [Line Items] | ||
| Total debt | 160.0 | 265.0 |
|
Notes, 7.34%, due in installments through May 2014 [Member]
|
||
| Debt Outstanding [Line Items] | ||
| Total debt | 30.0 | 30.0 |
|
Notes, 4.45%, due December 2014 [Member]
|
||
| Debt Outstanding [Line Items] | ||
| Total debt | 275.0 | 275.0 |
|
Notes, 6.30%, due July 2017 [Member]
|
||
| Debt Outstanding [Line Items] | ||
| Total debt | 272.5 | 272.5 |
|
Notes, 3.30%, due Dec 2022 [Member]
|
||
| Debt Outstanding [Line Items] | ||
| Total debt | 500.0 | 500.0 |
|
Debentures, 6.90%, Due July 2028 [Member]
|
||
| Debt Outstanding [Line Items] | ||
| Total debt | 125.0 | 125.0 |
|
Notes, 7.00%, Due July 2037 [Member]
|
||
| Debt Outstanding [Line Items] | ||
| Total debt | 250.0 | 250.0 |
|
Capitalized Lease Obligation [Member]
|
||
| Debt Outstanding [Line Items] | ||
| Total debt | 0 | 2.2 |
|
Other [Member]
|
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| Debt Outstanding [Line Items] | ||
| Total debt | $ 1.4 | $ 0.7 |