Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Property, Plant and Equipment
In service	$ 25,741.5	$ 15,509.0
Accumulated depreciation	(7,930.6)	(4,485.1)
Property, Plant and Equipment in Service, Net	17,810.9	11,023.9
Construction work in progress	936.4	191.8
Leased facilities, net	37.9	42.0
Net Property, Plant and Equipment	18,785.2	11,257.7
Investments
Equity investment in transmission affiliate	999.4	424.1
Other	97.0	32.8
Total Investments	1,096.4	456.9
Current Assets
Cash and cash equivalents	22.2	61.9
Accounts receivable and unbilled revenues, net of reserves of $128.7 and $74.5, respectively	844.7	643.4
Materials, supplies and inventories	719.8	400.6
Assets held for sale	140.2	0.0
Deferred income taxes	250.8	242.7
Other	204.2	186.8
Total Current Assets	2,181.9	1,535.4
Deferred Charges and Other Assets
Regulatory assets	2,805.5	1,271.2
Goodwill	3,389.1	441.9
Other long-term assets	511.5	200.3
Total Deferred Charges and Other Assets	6,706.1	1,913.4
Total Assets	28,769.6	15,163.4
Capitalization
Common stock - $.01 par value; 325,000,000 shares authorized; 315,684,451 and 225,517,339 shares outstanding, respectively	3.2	2.3
Additional Paid in Capital	4,350.6	300.1
Retained Earnings	4,264.9	4,117.0
Accumulated other comprehensive income	11.2	0.3
Preferred stock of subsidiaries	81.5	30.4
Long-term debt	8,727.0	4,186.4
Total Capitalization	17,438.4	8,636.5
Current Liabilities
Current portion of long-term debt	606.0	424.1
Short-term debt	661.5	617.6
Accounts payable	777.6	363.3
Accrued payroll and benefits	154.9	95.1
Other	466.8	168.6
Total Current Liabilities	2,666.8	1,668.7
Deferred Credits and Other Liabilities
Regulatory liabilities	1,312.3	830.6
Deferred income taxes	4,690.4	2,906.7
Deferred revenue, net	588.1	614.1
Pension and other postretirement benefit obligations	427.7	203.8
Environmental Remediation	611.5	32.6
Other long-term liabilities	1,034.4	270.4
Total Deferred Credits and Other Liabilities	8,664.4	4,858.2
Total Capitalization and Liabilities	28,769.6	15,163.4
Allowance for Doubtful Accounts Receivable, Current	$ 128.7	$ 74.5
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares Authorized	325,000,000	325,000,000
Common Stock, Shares, Outstanding	315,684,451	225,517,339