Revenue Recognition - Contract Assets and Liabilities (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
---|---|---|---|---|
Mar. 31, 2021 |
Mar. 31, 2020 |
Jun. 30, 2020 |
Dec. 31, 2020 |
|
Schedule Of Contract Assets And Liabilities [Line Items] | ||||
Deferred customer acquisition costs | $ 116 | $ 113 | ||
Total accounts receivable, net | 3,037 | 904 | ||
Unbilled revenues (included within Accounts receivable, net - Contracts with customers) | 1,234 | 393 | ||
Deferred revenues | 258 | 60 | ||
Deferred revenue from contract with customers | 232 | $ 31 | ||
Revenue recognized | 23 | $ 13 | ||
Accounts receivable, net - Contracts with customers | ||||
Schedule Of Contract Assets And Liabilities [Line Items] | ||||
Total accounts receivable, net | 2,920 | 866 | ||
Accounts receivable, net - Derivative instruments | ||||
Schedule Of Contract Assets And Liabilities [Line Items] | ||||
Total accounts receivable, net | 113 | 33 | ||
Accounts receivable, net - Affiliate | ||||
Schedule Of Contract Assets And Liabilities [Line Items] | ||||
Total accounts receivable, net | $ 4 | $ 5 |