Asset Impairment Expense (Impairment of Long-Lived Assets Held and Used by Asset) (Details) - USD ($) $ in Millions	3 Months Ended			12 Months Ended
	Dec. 31, 2023	Sep. 30, 2021	Mar. 31, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Asset Impairment Expense [Line Items]
Asset impairment expense				$ (1,067)	$ (763)	$ (1,575)
Impairment of Long-Lived Assets Held-for-use				$ 1,067	763	1,575
Impairment, Long-Lived Asset, Held-for-Use, Statement of Income or Comprehensive Income [Extensible Enumeration]				Asset impairment expense
Finance Lease, Right-of-Use Asset	$ 250			$ 250	160
Operating Lease, Right-of-Use Asset	380			380	356
Right-of-use Asset, Operating and Financing	630			630	516
Finance Lease, Liability	270			270	175
Operating Lease, Liability, Current	37			37	26
Operating Lease, Liability, Noncurrent	387			387	374
Operating Lease, Liability	424			424	400
Lease Liability, Operating and Financing	694			694	575
Nonrecourse [Member]
Asset Impairment Expense [Line Items]
Finance Lease, Liability, Current	8			8	6
Finance Lease, Liability, Noncurrent	262			262	$ 169
Disposal Group, Held-for-sale, Not Discontinued Operations [Member] | Jordan (IPP1 & IPP4)
Asset Impairment Expense [Line Items]
Disposal Group Not Discontinued Operation Ownership Interest Sold					26.00%
Other
Asset Impairment Expense [Line Items]
Impairment of Long-Lived Assets Held-for-use				5	$ 8	7
AES Panama
Asset Impairment Expense [Line Items]
Impairment of Long-Lived Assets Held-for-use		$ 11		0	0	11
Ventanas 3 & 4
Asset Impairment Expense [Line Items]
Impairment of Long-Lived Assets Held-for-use				0	0	649
AES PR
Asset Impairment Expense [Line Items]
Impairment of Long-Lived Assets Held-for-use			$ 475	0	0	475
Angamos [Member]
Asset Impairment Expense [Line Items]
Impairment of Long-Lived Assets Held-for-use				0	0	155
buffalo gap III
Asset Impairment Expense [Line Items]
Impairment of Long-Lived Assets Held-for-use				6	0	91
buffalo gap II [Member] [Member]
Asset Impairment Expense [Line Items]
Impairment of Long-Lived Assets Held-for-use				0	0	73
Buffalo Gap [Member]
Asset Impairment Expense [Line Items]
Impairment of Long-Lived Assets Held-for-use				4	0	29
Mountain View Power Partners
Asset Impairment Expense [Line Items]
Impairment of Long-Lived Assets Held-for-use				0	0	67
AES Jordan
Asset Impairment Expense [Line Items]
Impairment of Long-Lived Assets Held-for-use				59	76	0
AES Bulgaria
Asset Impairment Expense [Line Items]
Impairment of Long-Lived Assets Held-for-use				0	468	0
Mong Duong held-dfor-sale [Member]
Asset Impairment Expense [Line Items]
Impairment of Long-Lived Assets to be Disposed of				167	0	0
Norgener
Asset Impairment Expense [Line Items]
Impairment of Long-Lived Assets Held-for-use				137	0	0
TEG
Asset Impairment Expense [Line Items]
Impairment of Long-Lived Assets Held-for-use				77	104	0
TEP
Asset Impairment Expense [Line Items]
Impairment of Long-Lived Assets Held-for-use				59	89	0
New York Wind
Asset Impairment Expense [Line Items]
Impairment of Long-Lived Assets to be Disposed of				186	0	0
Warrior Run
Asset Impairment Expense [Line Items]
Impairment of Long-Lived Assets to be Disposed of				198	0	0
GAF Projects
Asset Impairment Expense [Line Items]
Impairment of Long-Lived Assets Held-for-use				18	0	0
AES Clean Energy Development Projects
Asset Impairment Expense [Line Items]
Impairment of Long-Lived Assets Held-for-use	$ 137			$ 151	$ 18	$ 18