EMPLOYEE BENEFIT PLANS (TABLES)

3 Months Ended

Mar. 31, 2013

Compensation and Retirement Disclosure [Abstract]

Schedule of Net Benefit Costs [Table Text Block]

Net periodic benefit costs recognized included the following components (in millions): 

	Three Months Ended March 31,
	Qualified						Nonqualified				Postretirement Medical
	2013			2012			2013		2012		2013		2012
Service cost	$	11		$	9		$	—	$	—	$	1	$	1
Interest cost	18			18			1		1		1		2
Expected return on assets	(27		)	(23		)	—		—		—		—
Amortization of prior service cost	—			—			—		—		—		—
Curtailment loss	—			—			—		—		—		—
Recognized actuarial loss	10			10			—		—		—		—
Total	$	12		$	14		$	1	$	1	$	2	$	3