SHAREOWNERS' EQUITY - Activity in Deferred Compensation Program (Detail) - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Benefit Obligations:
Balance at beginning of year	$ 657
Balance at end of year	$ 14,253	$ 657
Balance at beginning of year, Treasury Stock	(0.4)
Balance at end of year, Treasury Stock	(0.3)	(0.4)
Treasury Stock
Benefit Obligations:
Balance at beginning of year	$ (20)	$ (26)	$ (32)
Reinvested dividends	(1)	(1)	(2)
Benefit payments	5	7	8
Balance at end of year	$ (16)	$ (20)	$ (26)
Balance at beginning of year, Treasury Stock	0.0	0.0	(1.0)
Reinvested dividends, Treasury Stock	0.0	0.0	0.0
Benefit payments, Treasury Stock	0.0	0.0	1.0
Balance at end of year, Treasury Stock	0.0	0.0	0.0
Deferred Compensation Obligations
Benefit Obligations:
Balance at beginning of year	$ 20	$ 26	$ 32
Reinvested dividends	(1)	(1)	(2)
Benefit payments	(5)	(7)	(8)
Balance at end of year	$ 16	$ 20	$ 26