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Consolidated Entities and Equity Method Investments (Tables)
6 Months Ended
Jun. 30, 2019
Regulated Operations [Abstract]  
Equity Method Investments
Selected financial information of SNG for the three and six months ended June 30, 2019 and 2018 is as follows:
Income Statement Information
Three Months Ended
June 30, 2019
Three Months Ended
June 30, 2018
Six Months Ended
June 30, 2019
Six Months Ended
June 30, 2018
 
(in millions)
Revenues
$
155

$
146

$
321

$
306

Operating income
86

60

192

159

Net income
64

54

148

132


The carrying amounts of Southern Company Gas' equity method investments as of June 30, 2019 and December 31, 2018 and related income from those investments for the three- and six-month periods ended June 30, 2019 and 2018 were as follows:
Investment Balance
June 30, 2019
December 31, 2018
 
(in millions)
SNG
$
1,243

$
1,261

Atlantic Coast Pipeline
101

83

PennEast Pipeline
77

71

Other(*)
88

123

Total
$
1,509

$
1,538


(*)
Decrease primarily relates to the sale of Triton.
Schedule of Other Nonoperating Income, by Component
Earnings from Equity Method Investments
Three Months Ended
June 30, 2019
Three Months Ended
June 30, 2018
Six Months Ended
June 30, 2019
Six Months Ended
June 30, 2018
 
(in millions)
SNG
$
32

$
27

$
74

$
66

Atlantic Coast Pipeline
3

1

6

3

PennEast Pipeline
1

1

3

2

Other(*)
(5
)
2

(3
)
3

Total
$
31

$
31

$
80

$
74


(*)
Decrease primarily relates to the sale of Triton.