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Additional Financial Information (Tables)
6 Months Ended
Sep. 30, 2019
Accounts Payable [Abstract]  
Schedule of Cash, Cash Equivalents and Restricted Cash
The following provides the classifications of cash, cash equivalents and restricted cash in the consolidated balance sheets:
 
September 30,
2019
 
March 31,
2019
 
(in millions)
Cash and cash equivalents
$
4,262

 
$
6,982

Restricted cash in Other assets(1)
84

 
81

Cash, cash equivalents and restricted cash
$
4,346

 
$
7,063

_________________
(1)
Restricted cash in Other assets is required as part of our spectrum financing transactions.