EARNINGS PER SHARE (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Weighted-average shares outstanding:
Basic (in shares)	175,026,000	175,952,000	175,347,000	176,916,000
Dilutive securities (in shares)	8,873,000	10,688,000	10,018,000	10,248,000
Diluted (in shares)	183,899,000	186,640,000	185,365,000	187,164,000
Options outstanding excluded from the calculations as their effect would have been antidilutive (in shares)	400,000	100,000	200,000	300,000