Debt - Schedule of Carrying Values and Estimated Fair Values of Debt Instruments (Details) - USD ($) $ in Millions |
Dec. 31, 2019 |
Dec. 31, 2018 |
||||||
---|---|---|---|---|---|---|---|---|
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||
Carrying Amount, Debt | $ 17,579 | $ 16,066 | ||||||
Senior notes [Member] | Carrying Amount [Member] | ||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||
Carrying Amount, Debt | [1] | 16,950 | 15,450 | |||||
Senior notes [Member] | Estimated Fair Value [Member] | ||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||
Senior Notes, Estimated Fair Value | [1] | 18,320 | 15,672 | |||||
2037 SPL Senior Notes [Member] | Carrying Amount [Member] | ||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||
Carrying Amount, Debt | [2] | 800 | 800 | |||||
2037 SPL Senior Notes [Member] | Estimated Fair Value [Member] | ||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||
Senior Notes, Estimated Fair Value | [2] | 934 | 817 | |||||
Credit facilities [Member] | Carrying Amount [Member] | ||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||
Carrying Amount, Debt | [3] | 0 | 0 | |||||
Credit facilities [Member] | Estimated Fair Value [Member] | ||||||||
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||||||||
Lines of Credit, Fair Value Disclosure | [3] | $ 0 | $ 0 | |||||
|