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Cash Dividends	6 Months Ended
	Jun. 30, 2012
Cash Dividends [Abstract]
Cash Dividends	12. Cash Dividends On May 16, 2012 the Company’s Board of Directors approved a cash dividend of $0.12 per share. The cash dividend was paid on June 29, 2012 to each stockholder of record on June 15, 2012. Cash dividends aggregated $51 million and $102 million for the three and six months ended June 30, 2012, respectively, and $47 million and $93 million for the three and six months ended June 30, 2011, respectively. The declaration and payment of future dividends is at the discretion of the Company’s Board of Directors and will be dependent upon the Company’s results of operations, financial condition, capital requirements and other factors deemed relevant by the Company’s Board of Directors.

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Cash dividends.

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