Schedule of Consolidated VIEs, Carrying Amounts of Assets and Liabilities (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021	Sep. 30, 2021
Variable Interest Entity [Line Items]
Cash and cash equivalents and end of period	$ 2,216	$ 2,988	$ 2,911
Other current assets	1,460	934
Net property	20,032	20,555
Deferred charges and other assets	1,358	1,456
Total Assets	59,557	62,990
Accrued Liabilities, Current	3,303	3,481
Long-Term Debt	12,921	14,280
Other noncurrent obligations	6,555	6,602
Variable Interest Entity, Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Cash and cash equivalents and end of period	14	40
Other current assets	38	40
Net property	152	184
Deferred charges and other assets	15	15
Total Assets	219	279
Accrued Liabilities, Current	35	37
Long-Term Debt	0	3
Other noncurrent obligations	10	13
Total Liabilities	$ 45	$ 53