Commitments and Contingencies (Commercial Actions Narrative) (Details) (Commercial Actions [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2012
Commercial Actions [Member]
Loss Contingencies [Line Items]
Damages sought, amount	$ 38

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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+ Details