XML 75 R57.htm IDEA: XBRL DOCUMENT v3.21.1
SUPPLEMENTAL CASH FLOW INFORMATION (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Supplemental Cash Flow Information [Abstract]    
Other current assets $ 10 $ 7
Other noncurrent assets 1 9
Payables and other current liabilities 5 58
Long-term liabilities and equity 61 (3)
Total $ 77 $ 71