Stockholders' Equity Stockholders' Equity (Capital Stock Activity) (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Capital Stock Activity [Line Items]
Common Stock, Issued Shares, Ending Balance	286,300,000	286,300,000
Common Stock Issued
Capital Stock Activity [Line Items]
Common Stock, Issued Shares, Beginning Balance	286,318,000	286,318,000	286,318,000
Stock Awards
Treasury Stock Purchases
Net Stock Purchased for (Sold from) Employee Benefit Trust
Common Stock, Issued Shares, Ending Balance	286,318,000	286,318,000	286,318,000
Common Stock Held In Employee Benefit Trust
Capital Stock Activity [Line Items]
Common Stock, Issued Shares, Beginning Balance	196,000	169,000	132,000
Stock Awards
Treasury Stock Purchases
Net Stock Purchased for (Sold from) Employee Benefit Trust	(16,000)	27,000	37,000
Common Stock, Issued Shares, Ending Balance	180,000	196,000	169,000
Common Stock Held in Treasury
Capital Stock Activity [Line Items]
Common Stock, Issued Shares, Beginning Balance	49,061,000	48,316,000	46,545,000
Stock Awards	(998,000)	(1,393,000)	(975,000)
Treasury Stock Purchases	2,255,000	2,138,000	2,746,000
Net Stock Purchased for (Sold from) Employee Benefit Trust
Common Stock, Issued Shares, Ending Balance	50,318,000	49,061,000	48,316,000