SHORT-TERM AND LONG-TERM DEBT - Summary of Short and Long-term Debt (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Total short-term debt	$ 0	$ 254
Total long-term debt	3,830	3,820
Total borrowings	$ 3,830	4,074
Senior Notes \| Senior Debenture, (7.0%, due 2028)
Debt Instrument [Line Items]
Debt instrument, stated percentage	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%
Total long-term debt	$ 300	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%
Total long-term debt	$ 1,289	1,481
AB commercial paper
Debt Instrument [Line Items]
Total short-term debt	$ 0	$ 254

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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