CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
OPERATING REVENUES:
Waste and service revenues	$ 258	$ 251
Electricity and steam sales	91	94
Other operating revenues	43	32
Total operating revenues	392	377
OPERATING EXPENSES:
Plant operating expenses	267	271
Other operating expenses	39	28
General and administrative expenses	25	25
Depreciation and amortization expense	50	47
Net interest expense on project debt	8	8
Total operating expenses	389	379
Operating income (loss)	3	(2)
Other income (expense):
Interest expense	(18)	(17)
Non-cash convertible debt related expense	(6)	(5)
Loss on extinguishment of debt	(2)
Other income, net	3
Total other expenses	(23)	(22)
Loss from continuing operations before income tax benefit and equity in net income from unconsolidated investments	(20)	(24)
Income tax benefit	8	10
Equity in net income from unconsolidated investments	1
Loss from continuing operations	(11)	(14)
Income from discontinued operations, net of income tax expense of $0 and $2, respectively		149
NET (LOSS) INCOME	(11)	135
Less: Net income from continuing operations attributable to noncontrolling interests in subsidiaries	(1)
Less: Net income from discontinued operations attributable to noncontrolling interests in subsidiaries		(2)
Total net income attributable to noncontrolling interests in subsidiaries	(1)	(2)
NET (LOSS) INCOME ATTRIBUTABLE TO COVANTA HOLDING CORPORATION	(12)	133
Amounts Attributable to Covanta Holding Corporation stockholders':
Continuing operations	(12)	(14)
Discontinued operations		147
NET (LOSS) INCOME ATTRIBUTABLE TO COVANTA HOLDING CORPORATION	$ (12)	$ 133
Basic
Continuing operations	$ (0.09)	$ (0.09)
Discontinued operations		$ 1.00
Covanta Holding Corporation	$ (0.09)	$ 0.91
Weighted Average Shares	134	147
Diluted
Continuing operations	$ (0.09)	$ (0.09)
Discontinued operations		$ 1.00
Covanta Holding Corporation	$ (0.09)	$ 0.91
Weighted Average Shares	134	147
Cash Dividend Declared Per Share:	$ 0.150	$ 0.075