Document and Entity Information
| Document and Entity Information | Dec. 10, 2019 |
| Entity Information [Line Items] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Dec. 10, 2019 |
| Entity Registrant Name | PG&E CORPORATION |
| Entity Incorporation, State or Country Code | CA |
| Entity File Number | 001-12609 |
| Entity Tax Identification Number | 94-3234914 |
| Entity Address, Address Line One | 77 BEALE STREET |
| Entity Address, Address Line Two | P.O. BOX 770000 |
| Entity Address, City or Town | SAN FRANCISCO |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 94177 |
| City Area Code | 415 |
| Local Phone Number | 973-1000 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0001004980 |
| The New York Stock Exchange [Member] | Common Stock [Member] | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | Common stock, no par value |
| Trading Symbol | PCG |
| Security Exchange Name | NYSE |
| NYSE American LLC [Member] | First preferred stock, cumulative, par value $25 per share, 4.50% redeemable [Member] | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | First preferred stock, cumulative, par value $25 per share, 4.50% redeemable |
| Trading Symbol | PCG-PH |
| Security Exchange Name | NYSEAMER |
| NYSE American LLC [Member] | First preferred stock, cumulative, par value $25 per share, 5% nonredeemable [Member] | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | First preferred stock, cumulative, par value $25 per share, 5% nonredeemable |
| Trading Symbol | PCG-PC |
| Security Exchange Name | NYSEAMER |
| NYSE American LLC [Member] | First preferred stock, cumulative, par value $25 per share, 4.80% redeemable [Member] | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | First preferred stock, cumulative, par value $25 per share, 4.80% redeemable |
| Trading Symbol | PCG-PG |
| Security Exchange Name | NYSEAMER |
| NYSE American LLC [Member] | First preferred stock, cumulative, par value $25 per share, 5.50% nonredeemable [Member] | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | First preferred stock, cumulative, par value $25 per share, 5.50% nonredeemable |
| Trading Symbol | PCG-PB |
| Security Exchange Name | NYSEAMER |
| NYSE American LLC [Member] | First preferred stock, cumulative, par value $25 per share, 5% redeemable [Member] | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | First preferred stock, cumulative, par value $25 per share, 5% redeemable |
| Trading Symbol | PCG-PD |
| Security Exchange Name | NYSEAMER |
| NYSE American LLC [Member] | First preferred stock, cumulative, par value $25 per share, 4.36% series A redeemable [Member] | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | First preferred stock, cumulative, par value $25 per share, 4.36% series A redeemable |
| Trading Symbol | PCG-PI |
| Security Exchange Name | NYSEAMER |
| NYSE American LLC [Member] | First preferred stock, cumulative, par value $25 per share, 6% nonredeemable [Member] | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | First preferred stock, cumulative, par value $25 per share, 6% nonredeemable |
| Trading Symbol | PCG-PA |
| Security Exchange Name | NYSEAMER |
| NYSE American LLC [Member] | First preferred stock, cumulative, par value $25 per share, 5% series A redeemable [Member] | |
| Entity Information [Line Items] | |
| Title of 12(b) Security | First preferred stock, cumulative, par value $25 per share, 5% Series A redeemable |
| Trading Symbol | PCG-PE |
| Security Exchange Name | NYSEAMER |
| PACIFIC GAS AND ELECTRIC COMPANY [Member] | |
| Entity Information [Line Items] | |
| Entity Registrant Name | PACIFIC GAS AND ELECTRIC COMPANY |
| Entity Incorporation, State or Country Code | CA |
| Entity File Number | 001-02348 |
| Entity Tax Identification Number | 94-0742640 |
| Entity Address, Address Line One | 77 BEALE STREET |
| Entity Address, Address Line Two | P.O. BOX 770000 |
| Entity Address, City or Town | SAN FRANCISCO |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 94177 |
| City Area Code | 415 |
| Local Phone Number | 973-7000 |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0000075488 |