INVESTMENTS AND RELATED-PARTY TRANSACTIONS - Financial Information of Equity-Method Investments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Summarized Results of Operations
Revenues and other income	$ 22,075	$ 22,195	$ 23,831
Costs and expenses	19,023	18,930	19,595
Net income	2,369	3,078	4,696
Summarized Balance Sheet
Current assets	8,827	9,070
Current liabilities	9,428	9,521
Long-term debt	20,623	24,979
Other non-current liabilities	17,537	16,465
Equity	36,034	34,159
Equity Method Investment, Nonconsolidated Investee
Summarized Results of Operations
Revenues and other income	4,794	4,580	4,086
Costs and expenses	5,136	3,025	3,219
Net income	(342)	1,555	867
Summarized Balance Sheet
Current assets	4,086	4,643	4,493
Non-current assets	17,599	17,132	17,634
Current liabilities	2,279	2,183	2,462
Long-term debt	9,787	9,296	9,673
Other non-current liabilities	2,624	2,328	2,292
Equity	$ 6,995	$ 7,968	$ 7,700