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Condensed Consolidated Statements of Cash Flows (unaudited) (Parenthetical) - USD ($)
$ in Millions
Jun. 30, 2021
Dec. 31, 2020
Jun. 30, 2020
Statement of Cash Flows [Abstract]      
Cash and cash equivalents $ 3,136 $ 3,730 $ 4,085
Restricted cash included in prepaid expenses and other current assets 4 6 9
Cash, cash equivalents and restricted cash $ 3,140 [1] $ 3,736 $ 4,094 [1]
[1] We did not have any restricted cash balances as of December 31, 2019. The following table provides a reconciliation of cash, cash equivalents and restricted cash shown above to the amounts reported within the condensed consolidated balance sheet as of June 30, 2021, December 31, 2020, and June 30, 2020 (in millions):
June 30, 2021December 31, 2020June 30, 2020
Cash and cash equivalents$3,136 $3,730 $4,085 
Restricted cash included in prepaid expenses and other current assets4 6 9 
Cash, cash equivalents and restricted cash$3,140 $3,736 $4,094