Organization and Basis of Presentation (Consolidated Variable Interest Entities) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
ASSETS
Cash and cash equivalents	$ 28	$ 472
Restricted cash	7	2
Accounts receivable	1,695	1,542
Property, plant, and equipment, net	26,944	24,499
Total Assets	39,719	45,496	$ 42,268
LIABILITIES
Short-term borrowings	758	38
Variable interest entity, primary beneficiary
ASSETS
Cash and cash equivalents	11	20
Restricted cash	6	0
Accounts receivable	1	28
Inventories	3	107
Property, plant, and equipment, net	4	14
Notes receivable and other	70	33
Total Assets	95	202
LIABILITIES
Accounts payable	5	22
Short-term borrowings	75	38
Other current and long-term liabilities	0	4
Total liabilities	$ 80	$ 64