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Supplemental Cash Flow Information
 9 Months Ended
Sep. 30, 2021
Supplemental Cash Flow Elements [Abstract]  
Supplemental Cash Flow Information Supplemental Cash Flow Information
Reconciliation of Cash and cash equivalents and Restricted cash

The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the Consolidated Balance Sheets, as well as the September 30, 2020 balance. The September 30, 2021 and September 30, 2020 balances sum to the amounts shown in the Consolidated Statements of Cash Flows for the nine months ended September 30, 2021 and 2020:
September 30, 2021September 30, 2020December 31, 2020
Cash and cash equivalents$1,856,856 $716,799 $750,147 
Restricted cash104,999 30,857 117,151 
Total Cash and cash equivalents and Restricted cash shown in the Consolidated Statements of Cash Flows$1,961,855 $747,656 $867,298 

Restricted cash represents cash that is not immediately available for use in current operations and primarily includes cash held to collateralize standby letters of credit. See also Note 10, Commitments and Contingencies.