XML 73 R60.htm IDEA: XBRL DOCUMENT v3.22.2.2
SUPPLEMENTAL FINANCIAL STATEMENT INFORMATION Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Disclosure Text Block Supplement [Abstract]          
Temporary investments $ 408   $ 408   $ 1,100
Accumulated depreciation 18,100   18,100   17,600
Depreciation expense 250 $ 270 756 $ 790  
Accounts Payable, Other 102   102   106
Insurance Recoveries     26 6  
Interest payments     273 $ 346  
Asset retirement obligation $ 105   $ 105   $ 107