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Related Party Transactions (Tables)
 12 Months Ended
Dec. 31, 2018
Related Party Transactions [Abstract]  
Schedule of Related Party Transactions

A summary of activities between TEC and its affiliates follows:

Net transactions with affiliates:

 

(millions)

 

2018

 

 

2017

 

 

2016

 

Natural gas sales to/(from) affiliates

 

$

(38

)

 

$

(4

)

 

$

0

 

Services received from affiliates

 

 

65

 

 

 

67

 

 

 

66

 

Dividends to TECO Energy

 

 

362

 

 

 

292

 

 

 

289

 

Equity contributions from TECO Energy

 

 

345

 

 

 

190

 

 

 

150

 

Amounts due from or to affiliates at December 31,

 

(millions)

 

2018

 

 

2017

 

Accounts receivable (1)

 

$

3

 

 

$

2

 

Accounts payable (1)

 

 

20

 

 

 

19

 

Taxes receivable (2)

 

 

1

 

 

 

3

 

Taxes payable (2)

 

 

4

 

 

 

2

 

(1)

Accounts receivable and accounts payable were incurred in the ordinary course of business and do not bear interest.

(2)

Taxes receivable were due from EUSHI and taxes payable were due to EUSHI. See Note 4 for additional information.