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FAIR VALUE MEASUREMENTS (Tables)
9 Months Ended
Sep. 30, 2019
Fair Value Disclosures [Abstract]  
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Assets and liabilities measured at fair value on a recurring basis for PG&E Corporation and the Utility are summarized below. Assets held in rabbi trusts are held by PG&E Corporation and not the Utility.
Fair Value Measurements
September 30, 2019
(in millions)Level 1Level 2Level 3
Netting (1)
Total
Assets:
Short-term investments$2,687  $—  $—  $—  $2,687  
Nuclear decommissioning trusts
Short-term investments17  —  —  —  17  
Global equity securities1,913  —  —  —  1,913  
Fixed-income securities876  738  —  —  1,614  
Assets measured at NAV—  —  —  —  19  
Total nuclear decommissioning trusts (2)
2,806  738  —  —  3,563  
Price risk management instruments (Note 8)
Electricity—   201  27  231  
Gas—  12  —  14  26  
Total price risk management instruments—  15  201  41  257  
Rabbi trusts
Fixed-income securities—  100  —  —  100  
Life insurance contracts—  74  —  —  74  
Total rabbi trusts—  174  —  —  174  
Long-term disability trust
Short-term investments —  —  —   
Assets measured at NAV—  —  —  —  140  
Total long-term disability trust —  —  —  145  
TOTAL ASSETS$5,498  $927  $201  $41  $6,826  
Liabilities:
Price risk management instruments (Note 8)
Electricity$—  $—  $167  $(4) $163  
Gas—   —  —   
TOTAL LIABILITIES$—  $ $167  $(4) $165  
(1) Includes the effect of the contractual ability to settle contracts under master netting agreements and margin cash collateral.
(2) Represents amount before deducting $502 million, primarily related to deferred taxes on appreciation of investment value.
Fair Value Measurements
December 31, 2018
(in millions)Level 1Level 2Level 3
Netting (1)
Total
Assets:
Short-term investments$1,593  $—  $—  $—  $1,593  
Nuclear decommissioning trusts
Short-term investments29  —  —  —  29  
Global equity securities1,793  —  —  —  1,793  
Fixed-income securities661  639  —  —  1,300  
Assets measured at NAV—  —  —  —  16  
Total nuclear decommissioning trusts (2)
2,483  639  —  —  3,138  
Price risk management instruments (Note 8)
Electricity—   203  51  259  
Gas—   —  37  38  
Total price risk management instruments—   203  88  297  
Rabbi trusts
Fixed-income securities—  93  —  —  93  
Life insurance contracts—  67  —  —  67  
Total rabbi trusts—  160  —  —  160  
Long-term disability trust
Short-term investments —  —  —   
Assets measured at NAV—  —  —  —  155  
Total long-term disability trust —  —  —  162  
TOTAL ASSETS$4,083  $805  $203  $88  $5,350  
Liabilities:
Price risk management instruments (Note 8)
Electricity$ $ $108  $(10) $107  
Gas—   —  —   
TOTAL LIABILITIES$ $ $108  $(10) $109  
(1) Includes the effect of the contractual ability to settle contracts under master netting agreements and margin cash collateral.
(2) Represents amount before deducting $408 million, primarily related to deferred taxes on appreciation of investment value.
Level 3 Measurements and Sensitivity Analysis
Fair Value at
(in millions)September 30, 2019
Fair Value MeasurementAssetsLiabilitiesValuation
Technique
Unobservable
Input
Range (1)
Congestion revenue rights$190  $60  Market approachCRR auction prices(15.62) - 9.48
Power purchase agreements$11  $107  Discounted cash flowForward prices13.28 - 62.12
 (1) Represents price per megawatt-hour.
Fair Value at
(in millions)December 31, 2018
Fair Value MeasurementAssetsLiabilitiesValuation TechniqueUnobservable Input
Range (1)
Congestion revenue rights$203  $75  Market approachCRR auction prices$ (18.61) - 32.26 
Power purchase agreements$—  $33  Discounted cash flowForward prices$ 19.81 - 38.80  
(1) Represents price per megawatt-hour.
Level 3 Reconciliation
The following tables present the reconciliation for Level 3 price risk management instruments for the three and nine months ended September 30, 2019 and 2018:
Price Risk Management Instruments
(in millions)2019  2018  
Asset balance as of July 1$109  $34  
Net realized and unrealized gains:
Included in regulatory assets and liabilities or balancing accounts (1)
(75) (10) 
Asset balance as of September 30$34  $24  
(1) The costs related to price risk management activities are fully passed through to customers in rates.  Accordingly, unrealized gains and losses are deferred in regulatory liabilities and assets and net income is not impacted.

Price Risk Management Instruments
(in millions)2019  2018  
Asset balance as of January 1$95  $42  
Net realized and unrealized gains:
Included in regulatory assets and liabilities or balancing accounts (1)
(61) (18) 
Asset balance as of September 30$34  $24  
(1) The costs related to price risk management activities are fully passed through to customers in rates.  Accordingly, unrealized gains and losses are deferred in regulatory liabilities and assets and net income is not impacted.
Carrying Amount and Fair Value of Financial Instruments
The carrying amount and fair value of PG&E Corporation’s and the Utility’s debt instruments were as follows (the table below excludes financial instruments with carrying values that approximate their fair values):
At September 30, 2019At December 31, 2018
(in millions)Carrying AmountLevel 2 Fair ValueCarrying AmountLevel 2 Fair Value
PG&E Corporation(1)
$—  $—  $350  $350  
Utility(1)(2)
1,500  1,503  17,450  14,747  
(1) On January 29, 2019 PG&E Corporation and the Utility filed for Chapter 11 protection. Debt held by PG&E Corporation and the Utility became debt subject to compromise and is valued at the allowed claim amount. For more information, see Note 2 and Note 5.
(2) The fair value of the Utility pre-petition debt is $18.4 billion as of September 30, 2019. For more information, see Note 2 and Note 5.
Schedule of Unrealized Gains (Losses) Related to Available-For-Sale Investments
The following table provides a summary of equity securities and available-for-sale debt securities:
(in millions)
As of September 30, 2019Amortized
Cost
Total Unrealized GainsTotal Unrealized LossesTotal Fair
Value
Nuclear decommissioning trusts
Short-term investments$17  $—  $—  $17  
Global equity securities488  1,449  (5) 1,932  
Fixed-income securities1,508  108  (2) 1,614  
Total (1)
$2,013  $1,557  $(7) $3,563  
As of December 31, 2018
Nuclear decommissioning trusts
Short-term investments$29  $—  $—  $29  
Global equity securities568  1,246  (5) 1,809  
Fixed-income securities1,288  30  (18) 1,300  
Total (1)
$1,885  $1,276  $(23) $3,138  
(1) Represents amounts before deducting $502 million and $408 million for the periods ended September 30, 2019 and December 31, 2018, respectively, primarily related to deferred taxes on appreciation of investment value.
Schedule of Maturities on Debt Instruments
The fair value of fixed-income securities by contractual maturity is as follows:
As of
(in millions)September 30, 2019
Less than 1 year$49  
1–5 years508  
5–10 years390  
More than 10 years667  
Total maturities of fixed-income securities$1,614  
Schedule of Activity for Debt and Equity Securities
The following table provides a summary of activity for fixed income and equity securities:
Three Months Ended September 30,Nine Months Ended September 30,
(in millions)2019  2018  2019  2018  
Proceeds from sales and maturities of nuclear decommissioning trust investments$346  $319  $808  $1,121  
Gross realized gains on securities45   67  51  
Gross realized losses on securities(5) (5) (12) (14)