Consolidated Condensed Balance Sheets (Unaudited) - USD ($) $ in Millions	Jun. 30, 2016	Dec. 31, 2015
Current assets
Cash and cash equivalents	$ 29.2	$ 23.8
Receivables, less allowance for uncollectibles	256.5	280.7
Inventories, at average cost
Regulatory assets	18.4	44.8
Prepayments and other current assets	29.4	30.8
Total current assets	519.1	570.3
Property, plant and equipment
Construction work in progress	855.9	794.7
Other property	16.4	15.9
Property, plant and equipment, at original costs	10,483.7	10,194.7
Accumulated depreciation	(2,810.1)	(2,712.9)
Total property, plant and equipment, net	7,673.6	7,481.8
Other assets
Regulatory assets	392.9	395.2
Goodwill	408.4	408.4
Deferred charges and other assets	85.7	77.8
Total other assets	887.0	881.4
Total assets	9,079.7	8,933.5
Current liabilities
Long-term debt due within one year	0.0	333.3
Notes payable	615.0	247.0
Accounts payable	295.1	255.4
Customer deposits	168.5	182.1
Regulatory liabilities	130.1	84.8
Derivative liabilities	1.1	24.1
Interest accrued	34.3	36.2
Taxes accrued	46.0	13.2
Dividends declared	26.8	0.0
Other	21.8	22.6
Total current liabilities	1,338.7	1,198.7
Other liabilities
Deferred income taxes	635.1	570.7
Investment tax credits	10.3	10.5
Regulatory liabilities	723.8	715.8
Deferred credits and other liabilities	371.5	389.6
Long-term debt, less amount due within one year	3,490.0	3,489.2
Total other liabilities	5,230.7	5,175.8
Commitments and contingencies
Capital
Common equity	235.5	235.3
Additional paid in capital	1,898.5	1,894.5
Retained earnings	387.7	441.4
Accumulated other comprehensive loss	(11.4)	(12.2)
Total capital	2,510.3	2,559.0
Long-term debt	3,490.0	3,489.2
Total liabilities and capital	9,079.7	8,933.5
Tampa Electric Company [Member]
Current assets
Cash and cash equivalents	13.8	9.1
Receivables, less allowance for uncollectibles	238.7	230.2
Inventories, at average cost
Taxes receivable from affiliate	0.0	61.3
Regulatory assets	18.0	44.3
Prepayments and other current assets	20.6	21.5
Total current assets	468.4	545.1
Property, plant and equipment
Construction work in progress	832.1	771.1
Utility plant in service, at original costs	9,698.6	9,440.0
Accumulated depreciation	(2,762.0)	(2,676.8)
Utility plant in service, net	6,936.6	6,763.2
Other property	10.2	9.7
Total property, plant and equipment, net	6,946.8	6,772.9
Other assets
Regulatory assets	373.8	373.8
Deferred charges and other assets	401.5	390.6
Other	27.7	16.8
Total assets	7,816.7	7,708.6
Current liabilities
Long-term debt due within one year	0.0	83.3
Notes payable	123.0	61.0
Accounts payable	209.5	221.6
Customer deposits	162.7	176.3
Regulatory liabilities	124.4	83.2
Derivative liabilities	0.7	24.1
Interest accrued	17.7	16.9
Taxes accrued	72.2	13.2
Other	10.0	10.2
Total current liabilities	720.2	689.8
Other liabilities
Deferred income taxes	1,352.1	1,308.8
Investment tax credits	10.3	10.5
Regulatory liabilities	608.0	603.5
Deferred credits and other liabilities	301.0	318.8
Long-term debt, less amount due within one year	2,162.3	2,161.7
Total deferred credits	2,271.4	2,241.6
Commitments and contingencies
Capital
Common equity	2,395.4	2,305.4
Retained earnings	270.6	313.7
Accumulated other comprehensive loss	(3.2)	(3.6)
Total capital	2,662.8	2,615.5
Long-term debt	2,162.3	2,161.7
Total capitalization	4,825.1	4,777.2
Total liabilities and capital	7,816.7	7,708.6
Fuel [Member]
Inventories, at average cost
Utility inventories	106.8	113.4
Fuel [Member] | Tampa Electric Company [Member]
Inventories, at average cost
Utility inventories	102.2	105.6
Materials and Supplies [Member]
Inventories, at average cost
Utility inventories	78.8	76.8
Materials and Supplies [Member] | Tampa Electric Company [Member]
Inventories, at average cost
Utility inventories	75.1	73.1
Electric [Member]
Property, plant and equipment
Utility plant in service, at original costs	7,419.5	7,270.3
Electric [Member] | Tampa Electric Company [Member]
Property, plant and equipment
Utility plant in service, at original costs	7,419.5	7,270.3
Gas [Member]
Property, plant and equipment
Utility plant in service, at original costs	2,191.9	2,113.8
Gas [Member] | Tampa Electric Company [Member]
Property, plant and equipment
Utility plant in service, at original costs	$ 1,447.0	$ 1,398.6