Segment Information (Tables)

12 Months Ended

Dec. 31, 2018

Segment Reporting [Abstract]

Schedule of Segment Information

Segments are determined based on how management evaluates, measures and makes decisions with respect to the operations of the entity. Management reports segments based on each segment’s contribution of revenues, net income and total assets as required by the accounting guidance for disclosures about segments of an enterprise and related information. All significant intercompany transactions are eliminated in the Consolidated Financial Statements of TEC but are included in determining reportable segments.

TEC is a public utility operating within the State of Florida. Through its Tampa Electric division, it is engaged in the generation, purchase, transmission, distribution and sale of electric energy to approximately 764,000 customers in West Central Florida. Its PGS division is engaged in the purchase, distribution and marketing of natural gas for approximately 392,000 residential, commercial, industrial and electric power generation customers in the State of Florida.

	Tampa
(millions)	Electric		PGS		Eliminations				TEC
2018
Revenues - external	$	2,063	$	461	$	0			$	2,524
Sales to affiliates		3		27		(30	)			0
Total revenues		2,066		488		(30	)			2,524
Depreciation and amortization		312		60		0				372
Total interest charges		102		16		0				118
Provision for income taxes		65		16		0				81
Net income		294		47		0				341
Total assets		8,235		1,407		(487	)	(1)		9,155
Capital expenditures		940		169		0				1,109
2017
Revenues - external	$	2,052	$	418	$	0			$	2,470
Sales to affiliates		2		20		(22	)			0
Total revenues		2,054		438		(22	)			2,470
Depreciation and amortization		300		50		0				350
Total interest charges		104		15		0				119
Provision for income taxes		171		26		0				197
Net income		273		43		0				316
Total assets		7,635		1,284		(555	)	(1)		8,364
Capital expenditures		518		122		0				640
2016
Revenues - external	$	1,964	$	432	$	0			$	2,396
Sales to affiliates		1		7		(8	)			0
Total revenues		1,965		439		(8	)			2,396
Depreciation and amortization		268		60		0				328
Total interest charges		91		15		0				106
Provision for income taxes		130		22		0				152
Net income		251		35		0				286
Total assets		7,357		1,191		(465	)	(1)		8,083
Capital expenditures		594		133		0				727

(1) Amounts relate to consolidated deferred tax reclassifications. Deferred tax assets are reclassified and netted with deferred tax liabilities upon consolidation.