XML 47 R35.htm IDEA: XBRL DOCUMENT v3.25.3
Commitments and Contingencies (Tables)
 9 Months Ended
Sep. 30, 2025
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Cash Equivalents, Restricted Cash and Marketable Securities Beginning-of-period and end-of-period cash, cash equivalents, restricted cash and restricted cash equivalents as presented in the statement of cash flows is reconciled as follows:
September 30, 2025December 31, 2024September 30, 2024December 31, 2023
Cash and cash equivalents$84 $74 $83 $140 
Restricted cash and marketable securities225 208 203 164 
Less: restricted marketable securities(84)(79)(80)(76)
Cash, cash equivalents, restricted cash and restricted cash equivalents$225 $203 $206 $228 
Schedule of Restricted Cash and Marketable Securities
The following table summarizes our restricted cash and marketable securities:
September 30, 2025December 31, 2024
Capping, closure and post-closure obligations$66 $59 
Insurance159 149 
Total restricted cash and marketable securities$225 $208