LEASES Schedule of Supplemental Balance Sheet Information Related to Leases (Details) - USD ($) $ in Millions		Sep. 30, 2021	Dec. 31, 2020
Leases [Abstract]
Operating lease, right-of-use asset		$ 405	$ 459
Finance lease, right-of-use asset	[1]	87	95
Lease asset, total		492	554
Operating lease, liability, current		146	148
Finance lease, liability, current		12	13
Operating lease, liability, noncurrent		263	315
Finance lease, liability, noncurrent		75	82
Lease liability, total		$ 496	$ 558

[1] Finance leases are recorded net of accumulated amortization of $62 million and $53 million as of September 30, 2021 and December 31, 2020, respectively.