Earnings Per Share Table (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Basic Average Common Shares Outstanding	317,477	315,013	317,035	314,620
Stock options		41	0	39
Shares contingently issuable under employee stock plans		616	513	580
Shares restricted under stock plans		431	483	427
Weighted Average Number of Shares Outstanding, Diluted	317,477	316,101	318,031	315,666