Dispositions (Balance Sheet) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Current Assets Held for Sale
Total current assets held for sale	$ 262	$ 232
Noncurrent Assets Held for Sale
Total other noncurrent assets held for sale	5,634	6,695
Current Liabilities Associated with Assets Held for Sale
Total current liabilities associated with assets held for sale	259	167
Noncurrent Liabilities Associated with Assets Held for Sale
Total other noncurrent liabilities associated with assets held for sale	739	612
Discontinued Operations, Held-for-sale | Commercial Renewables Disposal Groups
Current Assets Held for Sale
Cash and cash equivalents	10	3
Receivables, net	107	87
Inventory	88	86
Other	57	56
Total current assets held for sale	262	232
Noncurrent Assets Held for Sale
Cost	6,444	7,323
Accumulated depreciation and amortization	(1,651)	(1,452)
Net property, plant and equipment	4,793	5,871
Operating lease right-of-use assets, net	140	130
Investments in equity method unconsolidated affiliates	522	513
Other	179	181
Total other noncurrent assets held for sale	841	824
Total Assets Held for Sale	5,896	6,927
Current Liabilities Associated with Assets Held for Sale
Accounts payable	122	98
Taxes accrued	17	18
Other	120	51
Total current liabilities associated with assets held for sale	259	167
Noncurrent Liabilities Associated with Assets Held for Sale
Operating lease liabilities	150	134
Asset retirement obligations	190	175
Other	399	303
Total other noncurrent liabilities associated with assets held for sale	739	612
Total Liabilities Associated with Assets Held for Sale	$ 998	$ 779