Retirement Plans Retirement Plans (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012
Estimated net actuarial loss for the defined benefit pension plans to be recognized from accumulated other comprehensive gain (loss)	$ (4)
Pesnion plans with an accumulated benefit obligation in excess of plan assets - projected benefit obligations	456	447
Pension plans with an accumulated benefit obligation in excess of plan assets - accumulated benefit obligations	427	417
Pesnion plans with an accumulated benefit obligation in excess of plan assets - fair value of plan assets	281	254
Current Fiscal Year End Date	--12-31
Anticipated contributions to defined benefit pension plans	$ 20

End date of current fiscal year in the format --MM-DD.

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- Definition

The total of net gain (loss), prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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- Definition

If aggregate disclosures are presented, the aggregate pension accumulated benefit obligation for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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- Definition

If aggregate disclosures are presented, the aggregate fair value of plan assets for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented.

+ References

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- Definition

If aggregate disclosures are presented, the aggregate projected benefit obligation for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented.

+ References

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- Definition

Amount of employer's best estimate of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position.

+ References

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