EARNINGS PER SHARE (NVE) (Tables)

9 Months Ended

Sep. 30, 2012

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

			Three Months Ended September 30,				Nine Months Ended September 30,
			2012		2011		2012		2011
Basic EPS
	Numerator ($000)
		Net Income	$	223,170	$	173,462	$	304,782	$	188,680
	Denominator
		Weighted average number of common shares outstanding		235,961,402		235,990,373		235,986,874		235,796,321
	Per Share Amounts
		Net Income per share - basic	$	0.95	$	0.74	$	1.29	$	0.80
Diluted EPS
	Numerator ($000)
		Net Income	$	223,170	$	173,462	$	304,782	$	188,680
	Denominator(1)
		Weighted average number of shares outstanding before dilution		235,961,402		235,990,373		235,986,874		235,796,321
		Stock options		39,256		33,343		37,592		36,314
		Non-Employee Director stock plan		166,829		141,122		160,257		142,587
		Employee stock purchase plan		6,742		4,012		6,785		4,547
		Restricted Shares		584,750		146,464		533,750		123,940
		Performance Shares		1,362,753		1,586,016		1,125,272		1,217,087
	Diluted Weighted Average Number of Shares			238,121,732		237,901,330		237,850,530		237,320,796
	Per Share Amounts
		Net income per share - diluted	$	0.94	$	0.73	$	1.28	$	0.80
	(1)	The denominator does not include stock equivalents for options issued under the non-qualified stock option plan due to conversion prices higher than market prices for all periods. If the conditions for conversion were met under this plan, 327,503 and 329,382 shares would be included for the three and nine months ended September 30, 2012, respectively, and 409,080 would be included for both the three and nine months ended September 30, 2011.