BENEFIT PLANS - Information for Pension Plans with a Projected Benefit Obligation in Excess of Plan Assets (Details) - Pension Plan - USD ($) $ in Millions		Dec. 31, 2020	Dec. 31, 2019
Japan
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	[1]	$ 473	$ 436
Fair value of plan assets	[1]	416	344
Funded status of the plans	[2]	(57)	(92)
U.S.
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	[3]	1,204	1,058
Fair value of plan assets	[3]	824	644
Funded status of the plans	[2]	$ (380)	$ (414)

[1] The net amount of projected benefit obligation and plan assets for the underfunded (including unfunded) Japan pension plan was $57 and $92 at December 31, 2020 and 2019, respectively, and was classified as liabilities on the statement of financial position.

[2] Recognized in other liabilities in the consolidated balance sheets

[3] The net amount of projected benefit obligation and plan assets for the underfunded (including unfunded) U.S. pension plan was $380 and $414 at December 31, 2020 and 2019, respectively, and was classified as liabilities on the statement of financial position.