FAIR VALUE MEASUREMENTS (Details - Difference between fair values and the aggregate contractual principal amounts of mortgage and other loans receivable and long-term borrowings for which the fair value option was elected) - USD ($) $ in Millions		Dec. 31, 2021	Dec. 31, 2020
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, Fair Value		$ 1,871	$ 2,097
Long-term debt, Outstanding Principal Amount	[1]	30,163	37,534
Fair Value Option
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, Fair Value		1,871	2,097
Long-term debt, Outstanding Principal Amount		1,405	1,479
Long-term debt, Difference		$ 466	$ 618

[1] See Note 9 for details of balances associated with variable interest entities.