REORGANIZATION - Additional Information (Detail) (USD $)	6 Months Ended	12 Months Ended
	Jun. 30, 2009 Person	Dec. 31, 2009
Restructuring Cost and Reserve [Line Items]
Reorganization expenses		$ 32,057,000
Restructuring Program
Restructuring Cost and Reserve [Line Items]
Number of positions which were affected during the period	230
Number of employees that agreed Voluntary Early Retirement Plan	80
Number of employees affected by involuntary reduction in workforce	150
Reorganization expenses		32,057,000
Termination benefits pursuant to voluntary and involuntary severance plans		16,000,000
Post-retirement benefits		6,400,000
Other reorganization related costs		$ 9,700,000
Restructuring Program | Before Capital Restructuring
Restructuring Cost and Reserve [Line Items]
Number of pipeline and terminal districts	5
Restructuring Program | After Capital Restructuring
Restructuring Cost and Reserve [Line Items]
Number of pipeline and terminal districts	3