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Financial Instruments (Notes)	9 Months Ended
Financial Instruments (Notes)	Sep. 30, 2021
Investments, Debt and Equity Securities [Abstract]
Financial Instruments	Financial Instruments Restricted Cash and Cash Equivalents The Company had restricted cash and cash equivalents of $39 and $24 at September 30, 2021 and December 31, 2020, respectively. The Company's restricted cash and cash equivalents are primarily related to balances that are restricted for payment of distributions to certain of the Company's current and former employees. In addition, the Company's restricted cash and cash equivalents include RS Cogen's cash that is restricted under its senior credit facility. Restricted cash and cash equivalents are reflected primarily in other assets, net in the consolidated balance sheets.