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Investments, Loans and Long-Term Receivables - Textual (Details) - USD ($) $ in Millions | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | ---
Sep. 30, 2018 | Mar. 31, 2019 | Sep. 30, 2020 | Dec. 31, 2019 | Dec. 31, 2012
Equity method investments |  |  |  |  |
Loan balance with affiliated company |  |  | $ 219 | $ 339 |
APLNG [Member] |  |  |  |  |
Equity method investments |  |  |  |  |
Project finance facility, maximum borrowing capacity |  |  |  |  | $ 8,500
Line Of Credit Facility Value Outstanding |  |  | 6,200 |  |
Book value of equity method investment |  |  | $ 6,877 |  |
Long Term Debt Refinanced Amount |  | $ 3,200 |  |  |
Line of Credit Facility, Expiration Date |  |  | Mar. 31, 2029 |  |
Line of Credit Facility, Frequency of Payments |  |  | bi-annual |  |
APLNG [Member] | Export-Import Bank of the US [Member] |  |  |  |  |
Equity method investments |  |  |  |  |
Project finance facility, maximum borrowing capacity |  |  |  |  | 2,900
APLNG [Member] | Export-Import Bank of China [Member] |  |  |  |  |
Equity method investments |  |  |  |  |
Project finance facility, maximum borrowing capacity |  |  |  |  | 2,700
Early Repayment of Senior Debt | $ 1,400 | 1,000 |  |  |
Line of Credit Facility, Expiration Date |  |  | Sep. 30, 2030 |  |
Line of Credit Facility, Frequency of Payments |  |  | bi-annual |  |
APLNG [Member] | Australian and International Commercial Bank Syndicate [Member] |  |  |  |  |
Equity method investments |  |  |  |  |
Project finance facility, maximum borrowing capacity |  |  |  |  | $ 2,900
Early Repayment of Senior Debt |  | 2,200 |  |  |
APLNG [Member] | U S Private Placement Bond [Member] |  |  |  |  |
Equity method investments |  |  |  |  |
Project finance facility, maximum borrowing capacity | $ 1,400 | 600 |  |  |
Line of Credit Facility, Expiration Date |  |  | Sep. 30, 2030 |  |
Line of Credit Facility, Frequency of Payments |  |  | bi-annual |  |
APLNG [Member] | Commerical Banks [Member] |  |  |  |  |
Equity method investments |  |  |  |  |
Project finance facility, maximum borrowing capacity |  | $ 2,600 |  |  |
Line of Credit Facility, Expiration Date |  |  | Mar. 31, 2028 |  |
Line of Credit Facility, Frequency of Payments |  |  | bi-annual |  |
QG3 [Member] |  |  |  |  |
Equity method investments |  |  |  |  |
Loan balance with affiliated company |  |  | $ 219 |  |

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