Pension And Post-Retirement Benefits (Pension And Post-Retirement Benefits And Liabilities) (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]
Retiree medical liability	$ 53	$ 52
Pension liability	96	94
Subtotal	149	146
Less: current portion (included in other current liabilities)	(3)	(3)
Pension and post-retirement benefits	$ 146	$ 143

This represents the entire liability recognized in the balance sheet that is associated with the defined benefit pension plans.

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+ Details

- Definition

This represents the entire liability recognized in the balance sheet that is associated with other postretirement defined benefit plans (excluding pension plans).

+ References

+ Details

- Definition

For a classified balance sheet, the amount recognized in balance sheet as a current liability associated with an underfunded defined benefit plan.

+ References+ Details

- Definition

This represents the entire liability recognized in the balance sheet that is associated with the defined benefit plans.

+ References

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+ Details

- Definition

This represents the noncurrent liability for underfunded plans recognized in the balance sheet that is associated with the defined benefit pension plans and other postretirement defined benefit plans.

+ References

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