Consolidated Balance Sheets (USD $) In Millions	Sep. 30, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 906	$ 470
Trade receivables, net	1,149	1,225
Income taxes receivable	55	396
Inventories	643	585
Derivative contracts	46	131
Investments and restricted cash and investments	65	44
Other current assets	408	437
Total current assets	3,272	3,288
Property, plant and equipment, net	33,323	31,899
Goodwill	5,005	5,025
Investments and restricted cash and investments	1,068	1,881
Regulatory assets	2,537	2,497
Derivative contracts	13	13
Other assets	1,184	1,065
Total assets	46,402	45,668
Current liabilities:
Accounts payable	806	827
Accrued employee expenses	208	159
Accrued interest	341	341
Accrued property, income and other taxes	353	287
Derivative contracts	155	158
Short-term debt	0	320
Current portion of long-term debt	1,321	1,286
Other current liabilities	439	424
Total current liabilities	3,623	3,802
Regulatory liabilities	1,731	1,664
Derivative contracts	332	458
MEHC senior debt	5,113	5,371
MEHC subordinated debt	151	172
Subsidiary debt	13,331	12,662
Deferred income taxes	6,518	6,298
Other long-term liabilities	1,677	1,833
Total liabilities	32,476	32,260
Commitments and contingencies (Note 12)
MEHC shareholders' equity:
Common stock - 115 shares authorized, no par value, 75 shares issued and outstanding	0	0
Additional paid-in capital	5,423	5,427
Retained earnings	8,958	7,979
Accumulated other comprehensive loss, net	(628)	(174)
Total MEHC shareholders' equity	13,753	13,232
Noncontrolling interests	173	176
Total equity	13,926	13,408
Total liabilities and equity	$ 46,402	$ 45,668