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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
 6 Months Ended
Jun. 30, 2019
Accounting Policies [Abstract]  
Components of Net Periodic Benefit Cost
The net periodic benefit costs reflected in PG&E Corporation’s Condensed Consolidated Financial Statements for the three and six months ended June 30, 2019 and 2018 were as follows:
 
Pension Benefits
 
Other Benefits
 
Three Months Ended June 30,
(in millions)
2019
 
2018
 
2019
 
2018
Service cost for benefits earned (1)
$
111

 
$
129

 
$
14

 
$
17

Interest cost
190

 
172

 
19

 
18

Expected return on plan assets
(226
)
 
(256
)
 
(30
)
 
(32
)
Amortization of prior service cost
(2
)
 
(2
)
 
3

 
3

Amortization of net actuarial loss
—

 
2

 
(1
)
 
(2
)
Net periodic benefit cost
73

 
45

 
5

 
4

Regulatory account transfer (2)
10

 
39

 
—

 
—

Total
$
83

 
$
84

 
$
5

 
$
4

 
 
 
 
 
 
 
 
(1) A portion of service costs are capitalized pursuant to ASU 2017-07.
(2) The Utility recorded these amounts to a regulatory account since they are probable of recovery from, or refund to, customers in future rates.

 
Pension Benefits
 
Other Benefits
 
Six Months Ended June 30,
(in millions)
2019
 
2018
 
2019
 
2018
Service cost for benefits earned (1)
$
222

 
$
257

 
$
28

 
$
33

Interest cost
379

 
344

 
38

 
35

Expected return on plan assets
(453
)
 
(511
)
 
(61
)
 
(65
)
Amortization of prior service cost
(3
)
 
(3
)
 
7

 
7

Amortization of net actuarial loss
1

 
3

 
(2
)
 
(3
)
Net periodic benefit cost
146

 
90

 
10

 
7

Regulatory account transfer (2)
21

 
77

 
—

 
—

Total
$
167

 
$
167

 
$
10

 
$
7

 
 
 
 
 
 
 
 

(1) A portion of service costs are capitalized pursuant to ASU 2017-07.
(2) The Utility recorded these amounts to a regulatory account since they are probable of recovery from, or refund to, customers in future rates
Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income (Loss)
The changes, net of income tax, in PG&E Corporation’s accumulated other comprehensive income (loss) are summarized below:
 
Pension
Benefits
 
Other
Benefits
 
Total
(in millions, net of income tax)
Three Months Ended June 30, 2019
Beginning balance
$
(21
)
 
$
17

 
$
(4
)
Amounts reclassified from other comprehensive income:
 
 
 
 
 
Amortization of prior service cost (net of taxes of $1 and $1, respectively) (1)
(1
)
 
2

 
1

Amortization of net actuarial loss (net of taxes of $0 and $1, respectively) (1)
—

 
—

 
—

Regulatory account transfer (net of taxes of $1 and $0, respectively) (1)
1

 
(2
)
 
(1
)
Net current period other comprehensive gain (loss)
—

 
—

 
—

Ending balance
$
(21
)
 
$
17

 
$
(4
)
 
 
 
 
 
 
(1) These components are included in the computation of net periodic pension and other post-retirement benefit costs.  (See the “Pension and Other Post-Retirement Benefits” table above for additional details.)
 
 
Pension Benefits
 
Other
Benefits
 
Total
(in millions, net of income tax)
Three Months Ended June 30, 2018
Beginning balance
$
(30
)
 
$
17

 
$
(13
)
Amounts reclassified from other comprehensive income: (1)
 
 
 
 
 
Amortization of prior service cost (net of taxes of $1 and $1, respectively)
(1
)
 
2

 
1

Amortization of net actuarial loss (net of taxes of $1 and $1, respectively)
1

 
(1
)
 
—

Regulatory account transfer (net of taxes of $0 and $0, respectively)
—

 
(1
)
 
(1
)
Net current period other comprehensive gain (loss)
—

 
—

 
—

Ending balance
$
(30
)
 
$
17

 
$
(13
)
 
 
 
 
 
 
(1) These components are included in the computation of net periodic pension and other post-retirement benefit costs.  (See the “Pension and Other Post-Retirement Benefits” table above for additional details.)
 
 
Pension
Benefits
 
Other
Benefits
 
Total
(in millions, net of income tax)
Six Months Ended June 30, 2019
Beginning balance
$
(21
)
 
$
17

 
$
(4
)
Amounts reclassified from other comprehensive income:
 
 
 
 
 
Amortization of prior service cost (net of taxes of $1 and $2, respectively) (1)
(2
)
 
5

 
3

Amortization of net actuarial loss (net of taxes of $0 and $1, respectively) (1)
1

 
(1
)
 
—

Regulatory account transfer (net of taxes of $1 and $1, respectively) (1)
1

 
(4
)
 
(3
)
Net current period other comprehensive gain (loss)
—

 
—

 
—

Ending balance
$
(21
)
 
$
17

 
$
(4
)
 
 
 
 
 
 
(1) These components are included in the computation of net periodic pension and other post-retirement benefit costs.  (See the “Pension and Other Post-Retirement Benefits” table above for additional details.)
 
 
Pension
Benefits
 
Other
Benefits
 
Total
(in millions, net of income tax)
Six Months Ended June 30, 2018
Beginning balance
$
(25
)
 
$
17

 
$
(8
)
Amounts reclassified from other comprehensive income:
 
 
 
 
 
Amortization of prior service cost (net of taxes of $1 and $2, respectively) (1)
(2
)
 
5

 
3

Amortization of net actuarial loss (net of taxes of $1 and $1, respectively) (1)
2

 
(2
)
 
—

Regulatory account transfer (net of taxes of $0 and $1, respectively) (1)
—

 
(3
)
 
(3
)
Reclassification of stranded income tax to retained earnings
(5
)
 
—

 
(5
)
Net current period other comprehensive gain (loss)
(5
)
 
—

 
(5
)
Ending balance
$
(30
)
 
$
17

 
$
(13
)
 
 
 
 
 
 
(1) These components are included in the computation of net periodic pension and other post-retirement benefit costs.  (See the “Pension and Other Post-Retirement Benefits” table above for additional details.)
Summary of Revenues Disaggregated by Type of Customer
The following table presents the Utility’s revenues disaggregated by type of customer:
 
Three Months Ended June 30,
 
Six Months Ended June 30,
(in millions)
2019
 
2018
 
2019
 
2018
Electric
 
 
 
 
 
 
 
Revenue from contracts with customers
 
 
 
 
 
 
 
   Residential
$
994

 
$
1,039

 
$
2,282

 
$
2,375

   Commercial
1,135

 
1,234

 
2,088

 
2,307

   Industrial
326

 
354

 
619

 
678

   Agricultural
261

 
318

 
347

 
443

   Public street and highway lighting
16

 
18

 
33

 
38

   Other (1)
—

 
84

 
(309
)
 
(118
)
     Total revenue from contracts with customers - electric
2,732

 
3,047

 
5,060

 
5,723

Regulatory balancing accounts (2)
214

 
265

 
678

 
540

Total electric operating revenue
$
2,946

 
$
3,312

 
$
5,738

 
$
6,263

 
 
 
 
 
 
 
 
Natural gas
 
 
 
 
 
 
 
Revenue from contracts with customers
 
 
 
 
 
 
 
   Residential
$
343

 
$
452

 
$
1,515

 
$
1,410

   Commercial
129

 
119

 
369

 
315

   Transportation service only
304

 
264

 
686

 
560

   Other (1)
(129
)
 
(128
)
 
(205
)
 
(179
)
      Total revenue from contracts with customers - gas
647

 
707

 
2,365

 
2,106

Regulatory balancing accounts (2)
350

 
215

 
(149
)
 
(79
)
Total natural gas operating revenue
997

 
922

 
2,216

 
2,027

Total operating revenues
$
3,943

 
$
4,234

 
$
7,954

 
$
8,290

 
 
 
 
 
 
 
 
(1) This activity is primarily related to the change in unbilled revenue, partially offset by other miscellaneous revenue items.
(2) These amounts represent revenues authorized to be billed or refunded to customers.
Schedule of Lease Expense
The following table shows the lease expense recognized for the fixed and variable component of the Utility’s lease obligations:
(in millions)
Three Months Ended June 30, 2019
 
Six Months Ended June 30, 2019
Operating lease fixed cost
$
114

 
$
236

Operating lease variable cost
490

 
799

Total operating lease costs
$
604

 
$
1,035
Schedule of Future Expected Operating Lease Payments and Expected Obligations for Power Purchase and Other Lease Commitments
The following table shows the Utility’s future expected operating lease payments:
(in millions)
June 30, 2019
2019 (1)
$
450

2020
679

2021
623

2022
548

2023
255

Thereafter
692

  Total lease payments
3,247

Less imputed interest
(594
)
  Total
$
2,653

 
 
(1) Represents the remaining expected operating lease payments from July 1, 2019 through December 31, 2019.

The following table shows the Utility’s future expected obligations for power purchase and other lease commitments:
(in millions)
December 31, 2018
2019
$
684

2020
677

2021
621

2022
546

2023
252

Thereafter
581

  Total lease commitments
$
3,361