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Commitments and Contingencies (Table)
 9 Months Ended
Sep. 30, 2019
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Additional Possible Losses in Excess of Recorded Environmental Reserves Additional losses in excess of recorded reserves that could be incurred for the stages of investigation, remediation and monitoring for environmental sites that have been evaluated at this time are not material except as presented in the table below.
(in millions)
 
Duke Energy
$
49

Duke Energy Carolinas
11

Duke Energy Ohio
31

Piedmont
2
Schedule of Reserves
The table below presents recorded reserves based on management’s best estimate of probable loss for legal matters, excluding asbestos-related reserves discussed above. Reserves are classified on the Condensed Consolidated Balance Sheets in Other within Other Noncurrent Liabilities and Other within Current Liabilities. The reasonably possible range of loss in excess of recorded reserves is not material, other than as described above.
(in millions)
September 30, 2019

 
December 31, 2018

Reserves for Legal Matters
 
 
 
Duke Energy
$
62

 
$
65

Duke Energy Carolinas
8

 
9

Progress Energy
52

 
54

Duke Energy Progress
13

 
12

Duke Energy Florida
22

 
24

Piedmont
1

 
1


The following tables contain information regarding reserves for probable and estimable costs related to the various environmental sites. These reserves are recorded in Accounts Payable within Current Liabilities and Other within Other Noncurrent Liabilities on the Condensed Consolidated Balance Sheets.
 
Nine Months Ended September 30, 2019
 
 
 
Duke

 
 
 
Duke

 
Duke

 
Duke

 
Duke

 
 
 
Duke

 
Energy

 
Progress

 
Energy

 
Energy

 
Energy

 
Energy

 
 
(in millions)
Energy

 
Carolinas

 
Energy

 
Progress

 
Florida

 
Ohio

 
Indiana

 
Piedmont

Balance at beginning of period
$
77

 
$
11

 
$
11

 
$
4

 
$
6

 
$
48

 
$
5

 
$
2

Provisions/adjustments
30

 
4

 
9

 
3

 
5

 
10

 
—

 
6

Cash reductions
(35
)
 
(4
)
 
(3
)
 
(2
)
 
(1
)
 
(28
)
 
—

 
—

Balance at end of period
$
72

 
$
11

 
$
17

 
$
5

 
$
10

 
$
30

 
$
5

 
$
8

 
Nine Months Ended September 30, 2018
 
 
 
Duke

 
 
 
Duke

 
Duke

 
Duke

 
Duke

 
 
 
Duke

 
Energy

 
Progress

 
Energy

 
Energy

 
Energy

 
Energy

 
 
(in millions)
Energy

 
Carolinas

 
Energy

 
Progress

 
Florida

 
Ohio

 
Indiana

 
Piedmont

Balance at beginning of period
$
81

 
$
10

 
$
15

 
$
3

 
$
12

 
$
47

 
$
5

 
$
2

Provisions/adjustments
7

 
3

 
2

 
3

 
(1
)
 
3

 
1

 
—

Cash reductions
(20
)
 
(2
)
 
(5
)
 
(1
)
 
(4
)
 
(12
)
 
(1
)
 
—

Balance at end of period
$
68

 
$
11

 
$
12

 
$
5

 
$
7

 
$
38

 
$
5

 
$
2