Fair Value (Instruments Not Measured at Fair Value) (Details) - USD ($) $ in Millions		Sep. 30, 2023	Dec. 31, 2022
Estimate of Fair Value Measurement [Member]
Assets, Fair Value Disclosure [Abstract]
Accounts receivable - noncurrent	[1]	$ 153	$ 340
Liabilities, Fair Value Disclosure [Abstract]
Non-recourse debt, including $1,781 and $2,295, respectively, related to variable interest entities		21,108	18,527
Recourse debt		5,106	3,505
Carrying Amount [Member]
Assets, Fair Value Disclosure [Abstract]
Accounts receivable - noncurrent	[1]	117	301
Liabilities, Fair Value Disclosure [Abstract]
Non-recourse debt, including $1,781 and $2,295, respectively, related to variable interest entities		21,618	19,429
Recourse debt		5,564	3,894
Level 1 [Member] | Estimate of Fair Value Measurement [Member]
Assets, Fair Value Disclosure [Abstract]
Accounts receivable - noncurrent		0	0
Liabilities, Fair Value Disclosure [Abstract]
Non-recourse debt, including $1,781 and $2,295, respectively, related to variable interest entities		0	0
Recourse debt		0	0
Level 2 [Member] | Estimate of Fair Value Measurement [Member]
Assets, Fair Value Disclosure [Abstract]
Accounts receivable - noncurrent		0	0
Liabilities, Fair Value Disclosure [Abstract]
Non-recourse debt, including $1,781 and $2,295, respectively, related to variable interest entities		19,646	17,089
Recourse debt		5,106	3,505
Level 3 [Member] | Estimate of Fair Value Measurement [Member]
Assets, Fair Value Disclosure [Abstract]
Accounts receivable - noncurrent	[1]	153	340
Liabilities, Fair Value Disclosure [Abstract]
Non-recourse debt, including $1,781 and $2,295, respectively, related to variable interest entities		1,462	1,438
Recourse debt		$ 0	$ 0

[1] These amounts primarily relate to amounts impacted by the Stabilization Funds enacted by the Chilean government, and are included in Other noncurrent assets in the accompanying Condensed Consolidated Balance Sheets.