Consolidated Condensed Balance Sheets (Unaudited) (USD $) In Millions, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Property, Plant and Equipment
In service	$ 13,595.4	$ 12,977.7
Accumulated depreciation	(3,915.7)	(3,797.8)
Property, Plant and Equipment in Service, Net	9,679.7	9,179.9
Construction work in progress	604.7	921.3
Leased facilities, net	56.3	59.2
Net Property, Plant and Equipment	10,340.7	10,160.4
Investments
Equity investment in transmission affiliate	362.1	349.7
Other	37.6	43.6
Total Investments	399.7	393.3
Current Assets
Cash and cash equivalents	13.1	14.1
Restricted cash	17.9	45.5
Accounts receivable, net	297.3	349.4
Accrued revenues	201.5	252.7
Materials, supplies and inventories	335.0	382.0
Prepayments and other	372.1	382.5
Total Current Assets	1,236.9	1,426.2
Deferred Charges and Other Assets
Regulatory assets	1,287.6	1,238.7
Goodwill	441.9	441.9
Other	180.8	201.6
Total Deferred Charges and Other Assets	1,910.3	1,882.2
Total Assets	13,887.6	13,862.1
Capitalization
Common equity	4,081.1	3,963.3
Preferred stock of subsidiary	30.4	30.4
Long-term debt	4,297.5	4,614.3
Total Capitalization	8,409.0	8,608.0
Current Liabilities
Long-term debt due currently	334.8	32.6
Short-term debt	559.5	669.9
Accounts payable	267.5	325.7
Accrued payroll and vacation	89.2	105.9
Other	177.4	230.4
Total Current Liabilities	1,428.4	1,364.5
Deferred Credits and Other Liabilities
Regulatory liabilities	906.2	902.0
Deferred income taxes - long-term	1,862.5	1,696.1
Deferred revenue, net	727.5	754.5
Pension and other benefit obligations	251.6	222.7
Other	302.4	314.3
Total Deferred Credits and Other Liabilities	4,050.2	3,889.6
Total Capitalization and Liabilities	$ 13,887.6	$ 13,862.1