Segment Information (Tables)

6 Months Ended

Jun. 30, 2017

Segment Reporting [Abstract]

Schedule of Segment Information

(millions)	Tampa								Tampa Electric
Three months ended June 30,	Electric		PGS		Eliminations				Company
2017
Revenues - external	$	542	$	102	$	0			$	644
Intracompany sales		0		2		(2	)			0
Total revenues		542		104		(2	)			644
Total interest charges		26		4		0				30
Net income	$	76	$	10	$	0			$	86
2016
Revenues - external	$	499	$	100	$	0			$	599
Intracompany sales		0		2		(2	)			0
Total revenues		499		102		(2	)			599
Total interest charges		22		4		0				26
Net income	$	69	$	7	$	0			$	76
Six months ended June 30,
2017
Revenues - external	$	984	$	213	$	0			$	1,197
Intracompany sales		1		3		(4	)			0
Total revenues		985		216		(4	)			1,197
Total interest charges		52		7		0				59
Net income	$	119	$	23	$	0			$	142
2016
Revenues - external	$	923	$	227	$	0			$	1,150
Intracompany sales		1		6		(7	)			0
Total revenues		924		233		(7	)			1,150
Total interest charges		47		7		0				54
Net income	$	119	$	20	$	0			$	139
Total assets at June 30, 2017	$	7,486	$	1,228	$	(500	)	(1)	$	8,214
Total assets at December 31, 2016	$	7,357	$	1,191	$	(465	)	(1)	$	8,083

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