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Long-Term Debt - Narrative (Details) - USD ($) | 1 Months Ended |  |
--- | --- | --- | ---
Jul. 31, 2020 | Jun. 30, 2020 | Dec. 31, 2019
Long-term Debt |  |  |
Debt issuance, face amount |  | $ 37,401,000,000 | $ 37,401,000,000
Senior Notes | Subsequent Event |  |  |
Long-term Debt |  |  |
Proceeds from issuance | $ 1,985,000,000 |  |
Senior Notes | Senior Notes due 2025, 8.000% | Subsequent Event |  |  |
Long-term Debt |  |  |
Debt issuance, face amount | $ 500,000,000 |  |
Interest rate | 8.00% |  |
Senior Notes | senior Notes due 2027, 8.500% | Subsequent Event |  |  |
Long-term Debt |  |  |
Debt issuance, face amount | $ 500,000,000 |  |
Interest rate | 8.50% |  |
Senior Notes | Senior Notes due 2030, 8.875% | Subsequent Event |  |  |
Long-term Debt |  |  |
Debt issuance, face amount | $ 1,000,000,000.0 |  |
Interest rate | 8.875% |  |
Total Fair Value |  |  |
Long-term Debt |  |  |
Estimated fair value of debt |  | 31,400,000,000 | $ 38,800,000,000
Total Fair Value | Level 2 |  |  |
Long-term Debt |  |  |
Estimated fair value of debt |  | $ 2,300,000,000 |

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- Definition Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13433-108611 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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