Income Taxes (Narratives) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Tax Credit Carryforward [Line Items]
Tax Credit Carryforward, Valuation Allowance	$ 1	$ 2	$ 4
Income Taxes Supplemental Information [Abstract]
Deferred Tax Liabilities, Undistributed Foreign Earnings	265
Statutory Accounting Practices, Retained Earnings Not Available for Dividends	33
Additional Tax On Undistributed Foreign Earnings	45
Income Tax Holiday, Aggregate Dollar Amount	7	8	7
Income Tax Holiday Income Tax Benefits Per Share Basic	$ 0.15	$ 0.19	$ 0.17
Income Tax Holiday Income Tax Benefits Per Share Diluted	$ 0.15	$ 0.18	$ 0.17
Tax benefit related to stock options credited to additional paid-in capital	15
Significant Change in Unrecognized Tax Benefits, Nature of Uncertainty	It is reasonably possible that the amount of the unrecognized benefit with respect to certain of the Company’s unrecognized tax positions will significantly increase or decrease within the next 12 months.
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range Not Possible	These changes may be the result of settlements of ongoing audits or competent authority proceedings. At this time, an estimate of the range of the reasonably possible outcomes cannot be made.
Income Tax Examination, Description	The Company files income tax returns in the U.S. federal jurisdiction and in various state and foreign jurisdictions. The Company is no longer subject to U.S. federal income tax examinations by tax authorities for tax years before 2007. With respect to state and local jurisdictions and countries outside of the U.S., with limited exceptions, the Company is no longer subject to income tax audits for years before 2006. Although the outcome of tax audits is always uncertain, the Company believes that adequate amounts of tax, interest and penalties, if any, have been provided for in the Company’s reserve for any adjustments that may result from future tax audits. The Company recognizes accrued interest and penalties, if any, related to unrecognized tax benefits in income tax expense. The Company had an insignificant amount of accrued interest and penalties at December 31, 2011 and December 31, 2010.
State and Local Jurisdiction [Member]
Tax Credit Carryforward [Line Items]
Tax Credit Carryforward, Amount	1
Tax Credit Carryforward, Expiration Dates	2020
Operating Loss Carryforward [Abstract]
Operating Loss Carryforwards	17
Operating Loss Carryforwards, Expiration Dates	2013
Federal [Member]
Tax Credit Carryforward [Line Items]
Tax Credit Carryforward, Amount	24
Tax Credit Carryforward, Expiration Dates	2012
Operating Loss Carryforward [Abstract]
Operating Loss Carryforwards	$ 1