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SHORT-TERM AND LONG-TERM DEBT - Summary of Short and Long-term Debt (Details) - USD ($) $ in Millions	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Total short-term debt	$ 0		$ 254
Total long-term debt	3,831		3,820
Total borrowings	$ 3,831		4,074
Senior Notes \| Senior Debenture, (7.0%, due 2028)
Debt Instrument [Line Items]
Debt instrument, stated percentage	7.00%	7.00%
Total long-term debt	$ 250		349
Senior Notes \| Senior Note (4.35% due 2028)
Debt Instrument [Line Items]
Debt instrument, stated percentage	4.35%
Total long-term debt	$ 1,494		1,493
Senior Notes \| Senior Note (4.572% due 2029)
Debt Instrument [Line Items]
Debt instrument, stated percentage	4.572%	4.572%
Total long-term debt	$ 301		0
Senior Notes \| Senior Note (5.594% due 2033)
Debt Instrument [Line Items]
Debt instrument, stated percentage	5.594%
Total long-term debt	$ 497		497
Senior Notes \| Senior Note (5.00% due 2048)
Debt Instrument [Line Items]
Debt instrument, stated percentage	5.00%	5.00%
Total long-term debt	$ 1,289		1,481
AB commercial paper
Debt Instrument [Line Items]
Total short-term debt	$ 0		$ 254