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Condensed Consolidated Statements of Cash Flows (Parenthetical) - USD ($)
$ in Millions
Mar. 31, 2019
Mar. 31, 2018
Reconciliation of cashflow information:    
Cash and cash equivalents $ 45 $ 25
Restricted cash included in prepaid and other current assets 6 7
Restricted cash included in other assets 1 9
Total cash, cash equivalents, and restricted cash $ 52 $ 41