Segment and Related Information (Tables)

6 Months Ended

Jun. 30, 2011

Segment and Related Information (Tables) [Abstract]

Reportable segments

Summarized financial information concerning our reportable segments for the three and six months ended June 30 is shown in the following table (in millions):

	Gross		Intercompany			Net
	Operating		Operating			Operating		Income from
	Revenues		Revenues			Revenues		Operations
Three Months Ended:
June 30, 2011
Eastern	$	800	$	(136	)	$	664	$	141
Midwest		828		(126	)		702		156
Southern		862		(105	)		757		193
Western		825		(114	)		711		142
Wheelabrator		226		(30	)		196		42
Other		330		(13	)		317		(21	)
		3,871		(524	)		3,347		653
Corporate and Other		—		—			—		(147	)
Total	$	3,871	$	(524	)	$	3,347	$	506
June 30, 2010
Eastern	$	774	$	(140	)	$	634	$	143
Midwest		780		(119	)		661		141
Southern		876		(104	)		772		206
Western		799		(112	)		687		141
Wheelabrator		217		(29	)		188		47
Other		225		(9	)		216		(26	)
		3,671		(513	)		3,158		652
Corporate and Other		—		—			—		(66	)
Total	$	3,671	$	(513	)	$	3,158	$	586
Six Months Ended:
June 30, 2011
Eastern	$	1,504	$	(248	)	$	1,256	$	261
Midwest		1,556		(232	)		1,324		285
Southern		1,700		(203	)		1,497		385
Western		1,615		(222	)		1,393		282
Wheelabrator		436		(61	)		375		55
Other		623		(18	)		605		(35	)
		7,434		(984	)		6,450		1,233
Corporate and Other		—		—			—		(300	)
Total	$	7,434	$	(984	)	$	6,450	$	933
June 30, 2010
Eastern	$	1,459	$	(253	)	$	1,206	$	252
Midwest		1,474		(217	)		1,257		223
Southern		1,699		(201	)		1,498		406
Western		1,563		(215	)		1,348		270
Wheelabrator		423		(60	)		363		83
Other		440		(19	)		421		(55	)
		7,058		(965	)		6,093		1,179
Corporate and Other		—		—			—		(181	)
Total	$	7,058	$	(965	)	$	6,093	$	998