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SUPPLEMENTAL FINANCIAL STATEMENT INFORMATION Restricted Cash (Details) - USD ($)
$ in Millions
Mar. 31, 2022
Dec. 31, 2021
Mar. 31, 2021
Dec. 31, 2020
Restricted Cash and Cash Equivalents Items [Line Items]        
Cash and temporary investments $ 1,031 $ 1,295    
Restricted Cash, Current 88   $ 0  
End of period $ 1,119 $ 1,295 $ 787 $ 595