| Net Income (Loss) Per Share Attributable to Common Stockholders (Details) - $ / shares shares in Millions | 3 Months Ended | 12 Months Ended | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 31, 2020 | [1] | Sep. 30, 2020 | [1] | Jun. 30, 2020 | [1] | Mar. 31, 2020 | [1] | Dec. 31, 2019 | [1] | Sep. 30, 2019 | [1] | Jun. 30, 2019 | [1] | Mar. 31, 2019 | [1] | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | |||||||||
| Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] | |||||||||||||||||||||||||||
| Weighted average number of common shares outstanding, basic | 252.4 | 256.2 | 245.6 | ||||||||||||||||||||||||
| Dilutive Unvested Stock | 0.0 | 1.9 | 2.4 | ||||||||||||||||||||||||
| Weighted Average Number of Shares Outstanding, Diluted | 252.4 | 258.1 | 248.0 | ||||||||||||||||||||||||
| Net income (loss) per share attributable to common stockholders—basic | $ (0.77) | $ (1.84) | $ 0.78 | $ 1.48 | $ 3.70 | $ (1.25) | $ (0.44) | $ 0.55 | $ (0.34) | $ 2.53 | $ 1.92 | ||||||||||||||||
| Diluted net income (loss) per share attributable to common stockholders | $ (0.77) | $ (1.84) | $ 0.78 | $ 1.43 | $ 3.34 | $ (1.25) | $ (0.44) | $ 0.54 | $ (0.34) | $ 2.51 | $ 1.90 | ||||||||||||||||
| Antidilutive securities excluded from computation of earnings per share | 7.9 | 46.0 | 18.3 | ||||||||||||||||||||||||
| Unvested stock | |||||||||||||||||||||||||||
| Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] | |||||||||||||||||||||||||||
| Antidilutive securities excluded from computation of earnings per share | [2] | 3.4 | 2.3 | 0.8 | |||||||||||||||||||||||
| 2021 Cheniere Convertible Notes [Member] | |||||||||||||||||||||||||||
| Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] | |||||||||||||||||||||||||||
| Antidilutive securities excluded from computation of earnings per share | [3] | 0.0 | 13.7 | 13.0 | |||||||||||||||||||||||
| 2025 CCH HoldCo II Convertible Notes [Member] | |||||||||||||||||||||||||||
| Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] | |||||||||||||||||||||||||||
| Antidilutive securities excluded from computation of earnings per share | [4] | 0.0 | 25.5 | 0.0 | |||||||||||||||||||||||
| 2045 Cheniere Convertible Senior Notes [Member] | |||||||||||||||||||||||||||
| Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] | |||||||||||||||||||||||||||
| Antidilutive securities excluded from computation of earnings per share | 4.5 | 4.5 | 4.5 | ||||||||||||||||||||||||
| Restricted Stock With Unsatisfied Performance Conditions [Member] | |||||||||||||||||||||||||||
| Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] | |||||||||||||||||||||||||||
| Antidilutive securities excluded from computation of earnings per share | 0.5 | 0.5 | 0.4 | ||||||||||||||||||||||||
| 
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