Segment Information (Tables)

9 Months Ended

Sep. 30, 2018

Segment Reporting [Abstract]

Schedule of Segment Information

(millions)	Tampa								Tampa Electric
Three months ended September 30,	Electric		PGS		Eliminations				Company
2018
Revenues - external	$	593	$	104	$	0			$	697
Intracompany sales		1		7		(8	)			0
Total revenues		594		111		(8	)			697
Total interest charges		23		4		0				27
Net income	$	109	$	9	$	0			$	118
2017
Revenues - external	$	597	$	96	$	0			$	693
Intracompany sales		1		14		(15	)			0
Total revenues		598		110		(15	)			693
Total interest charges		26		4		0				30
Net income	$	98	$	8	$	0			$	106
Nine months ended September 30,
2018
Revenues - external	$	1,563	$	350	$	0			$	1,913
Intracompany sales		2		18		(20	)			0
Total revenues		1,565		368		(20	)			1,913
Total interest charges		75		11		0				86
Net income	$	230	$	36	$	0			$	266
2017
Revenues - external	$	1,581	$	309	$	0			$	1,890
Intracompany sales		2		17		(19	)			0
Total revenues		1,583		326		(19	)			1,890
Total interest charges		78		11		0				89
Net income	$	217	$	31	$	0			$	248
Total assets at September 30, 2018	$	8,151	$	1,348	$	(582	)	(1)	$	8,917
Total assets at December 31, 2017	$	7,635	$	1,284	$	(555	)	(1)	$	8,364

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