|
Weighted Average Assumptions Used In Determining Benefit Obligations (Detail)
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|---|---|---|---|---|
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Discount Rate | 5.00% | 4.20% | 5.00% | 5.75% |
|
Pension
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Discount Rate | 5.00% | 4.20% | ||
| Rate of compensation increases | 3.00% | 3.00% | ||
|
Health Care And Life
|
||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Discount Rate | 5.00% | 4.20% |