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Revenue (Tables)
 12 Months Ended
Dec. 31, 2024
Revenue [Abstract]  
Disaggregation of Revenue by Major Source
Electric
Gas
Other
Florida
Canadian
Other
 
Gas Utilities
Inter-
Electric
Electric
Electric
and
 
Segment
millions of dollars
Utility
Utilities
Utilities
Infrastructure
Other
Eliminations
Total
For the year ended December 31, 2024
 
Regulated Revenue
Residential
$
 
2,063
$
 
997
$
 
203
$
 
712
$
-
 
$
-
 
$
 
3,975
Commercial
 
939
 
499
 
300
 
496
-
 
-
 
 
2,234
Industrial
 
223
 
276
 
28
 
94
-
 
(14)
 
607
Other electric
 
372
 
41
 
7
-
 
-
 
-
 
 
420
Regulatory deferrals
(157)
-
 
 
15
-
 
-
 
-
 
(142)
Other (1)
 
 
20
 
42
 
13
 
224
-
 
(9)
 
290
Finance income (2)(3)
-
 
-
 
-
 
 
63
-
 
 
63
 
Regulated revenue
$
 
3,460
$
 
1,855
$
 
566
$
 
1,589
$
-
 
$
(23)
$
 
7,447
Non-Regulated Revenue
Marketing and trading margin (4)
-
 
-
 
-
 
-
 
 
77
-
 
 
77
Other non-regulated operating
revenue
-
 
-
 
-
 
 
20
 
32
(24)
 
28
Mark-to-market (3)
-
 
-
 
-
 
-
 
(357)
 
5
(352)
 
Non-regulated revenue
$
-
 
$
-
 
$
-
 
$
 
20
$
(248)
$
(19)
$
(247)
Total operating revenues
$
 
3,460
$
 
1,855
$
 
566
$
 
1,609
$
(248)
$
(42)
$
 
7,200
For the year ended December 31, 2023
 
Regulated Revenue
Residential
$
 
2,307
$
 
910
$
 
183
$
 
724
$
-
 
$
-
 
$
 
4,124
Commercial
 
1,083
 
463
 
285
 
425
-
 
-
 
 
2,256
Industrial
 
274
 
219
 
33
 
93
-
 
(13)
 
606
Other electric
 
395
 
41
 
7
-
 
-
 
-
 
 
443
Regulatory deferrals
(522)
-
 
 
12
-
 
-
 
-
 
(510)
Other (1)
 
 
19
 
38
 
6
 
199
-
 
(8)
 
254
Finance income (2)(3)
-
 
-
 
-
 
 
62
-
 
-
 
 
62
 
Regulated revenue
$
 
3,556
$
 
1,671
$
 
526
$
 
1,503
$
-
 
$
(21)
 
7,235
Non-Regulated
 
Marketing and trading margin (4)
-
 
-
 
-
 
-
 
 
96
-
 
 
96
Other non-regulated operating
revenue
-
 
-
 
-
 
 
21
 
27
(23)
 
25
Mark-to-market (3)
-
 
-
 
-
 
-
 
 
216
(9)
 
207
 
Non-regulated revenue
$
-
 
$
-
 
$
-
 
$
 
21
$
 
339
$
(32)
 
328
Total operating revenues
$
 
3,556
$
 
1,671
$
 
526
$
 
1,524
$
 
339
$
(53)
$
 
7,563
(1) Other includes rental revenues, which do not
 
represent revenue from contracts with customers.
(2) Revenue related to Brunswick Pipeline's service agreement
 
with Repsol Energy Canada.
(3) Revenue which does not represent revenues
 
from contracts with customers.
(4) Includes gains (losses) on settlement of energy
 
related derivatives, which do not represent
 
revenue from contracts with
customers.