Income Taxes (Net Operating Loss Carryforwards Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011
US Federal [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	$ 36
Net operating loss carryforward expiration	2021
Valuation allowance offset for State net operating loss carryforwards due to uncertain recoverability	34
State [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	36
Net operating loss carryforward expiration	2012
Foreign Country [Member]
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	$ 1,000
CHINA
Operating Loss Carryforwards [Line Items]
Net operating loss carryforward expiration	2011
MEXICO
Operating Loss Carryforwards [Line Items]
Net operating loss carryforward expiration	2009
Net operating loss carryforward period	ten-year carryforward period