Consolidated Condensed Statements of Cash Flows (Unaudited) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Cash flows from operating activities
Net income	$ 119.6	$ 155.7
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	255.7	251.3
Deferred income taxes	58.7	89.1
Investment tax credits	(0.3)	(0.3)
Allowance for other funds used during construction	(7.3)	(4.3)
Non-cash stock compensation	10.2	10.2
Gain on sales of business/assets	(0.2)	(0.3)
Deferred recovery clauses	(5.5)	(3.8)
Asset impairment	98.4	0
Receivables, less allowance for uncollectibles	(25.9)	(64.4)
Inventories	(9.6)	3.1
Prepayments and other current assets	(5.5)	(4.2)
Taxes accrued	48.6	44.0
Interest accrued	27.8	22.2
Accounts payable	(29.4)	10.6
Other	(29.1)	(2.8)
Depreciation and amortization	230.0	222.8
Allowance for other funds used during construction	(7.3)	(4.3)
Cash flows from operating activities	506.2	506.1
Cash flows from investing activities
Capital expenditures	(491.8)	(370.9)
Allowance for other funds used during construction	7.3	4.3
Purchase of NMGI, net of cash acquired	(752.5)	0
Net proceeds from sales of assets	0.3	0.4
Cash flows used in investing activities	(1,236.7)	(366.2)
Cash flows from financing activities
Dividends	(147.5)	(143.4)
Common stock	296.6	7.4
Proceeds from long-term debt issuance	564.2	0
Repayment of long-term debt/Purchase in lieu of redemption	(83.3)	(51.6)
Net decrease in short-term debt	(12.0)	0
Cash flows from (used) in financing activities	618.0	(187.6)
Net decrease in cash and cash equivalents	(112.5)	(47.7)
Cash and cash equivalents at beginning of the period	185.2	200.5
Cash and cash equivalents at end of the period	72.7	152.8
Supplemental disclosure of non-cash activities
Debt assumed in NMGI acquisition	200.0	0
Capital expenditures accrued-excluded above	10.2	(0.6)
Tampa Electric Company [Member]
Cash flows from operating activities
Net income	214.0	178.2
Adjustments to reconcile net income to net cash from operating activities:
Deferred income taxes	50.4	57.7
Investment tax credits	(0.3)	(0.3)
Allowance for other funds used during construction	(7.3)	(4.3)
Deferred recovery clauses	(6.0)	(3.8)
Receivables, less allowance for uncollectibles	(39.2)	(61.5)
Inventories	18.0	(2.6)
Prepayments	(6.6)	(5.1)
Taxes accrued	113.3	89.6
Interest accrued	24.3	20.0
Accounts payable	(24.1)	6.2
Other	(23.3)	1.4
Depreciation and amortization	225.9	221.6
Allowance for other funds used during construction	(7.3)	(4.3)
Cash flows from operating activities	539.1	497.1
Cash flows from investing activities
Capital expenditures	(475.8)	(353.1)
Allowance for other funds used during construction	7.3	4.3
Cash flows used in investing activities	(468.5)	(348.8)
Cash flows from financing activities
Dividends	(169.8)	(147.6)
Common stock	19.5	20.0
Proceeds from long-term debt issuance	296.3	0
Repayment of long-term debt/Purchase in lieu of redemption	(83.3)	(51.6)
Net decrease in short-term debt	(84.0)	0
Cash flows from (used) in financing activities	(21.3)	(179.2)
Net decrease in cash and cash equivalents	49.3	(30.9)
Cash and cash equivalents at beginning of the period	9.8	45.2
Cash and cash equivalents at end of the period	59.1	14.3
Supplemental disclosure of non-cash activities
Capital expenditures accrued-excluded above	$ 11.0	$ (0.6)