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Short-Term Debt (Tables)

3 Months Ended

Mar. 31, 2017

Debt Disclosure [Abstract]

Short-Term Debt Credit Facilities and Related Borrowings

Details of the credit facilities and related borrowings are presented in the following table:


	March 31, 2017												December 31, 2016
									Letters												Letters
	Credit				Borrowings				of Credit				Credit				Borrowings				of Credit
(millions)	Facilities				Outstanding ⁽¹⁾				Outstanding				Facilities				Outstanding ⁽¹⁾				Outstanding
Tampa Electric Company:
5-year facility ⁽²⁾	$	325			$	175			$	1			$	325			$	40			$	1
3-year accounts receivable facility ⁽³⁾		150				101				0				150				130				0
Total	$	475			$	276			$	1			$	475			$	170			$	1

(1)	Borrowings outstanding are reported as notes payable.

(2)	This 5-year facility matures March 22, 2022.

(3)	This 3-year facility matures March 23, 2018.