RETIREMENT BENEFITS PLANS - Fair Value of Pension Plan Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Defined Benefit Plan Disclosure [Line Items]
United States pension plans percentage of worldwide pension assets	61.00%
United Kingdom pension plans percentage of worldwide pension assets	25.00%
United States pension plans' target allocation of United States equities	15.00%
United States pension plans' target allocation of non-United States equities	7.00%
United States pension plans' target allocation of real estate	3.00%
United State pension plans' target allocation of debt securities	64.00%
United States pension plans' target allocation of other, including private equity, private debt, and cash equivalents	11.00%
United Kingdom pension plans' target allocation of equities	16.00%
Total pension plan assets	$ 3,993	$ 4,237
Pending purchases and sales of plan assets, and interest receivable	(85)	(67)
Unfunded commitments	128	154
Quoted prices in active markets for identical assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	662	729
Other observable inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	1,952	2,036
Unobservable inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	486	569
Non-United States equity and global equities | Fair Value, Inputs, Level 1, 2 and 3
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	241	154
Non-United States equity and global equities | Quoted prices in active markets for identical assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	0	0
Non-United States equity and global equities | Other observable inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	241	154
Non-United States equity and global equities | Unobservable inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	0	0
United States equity | Fair Value, Inputs, Level 1, 2 and 3
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets		76
United States equity | Quoted prices in active markets for identical assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets		0
United States equity | Other observable inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets		76
United States equity | Unobservable inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets		0
Fixed income | Fair Value, Inputs, Level 1, 2 and 3
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	28	115
Fixed income | Quoted prices in active markets for identical assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	0	0
Fixed income | Other observable inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	28	115
Fixed income | Unobservable inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	0	0
Fixed income securities | Fair Value, Inputs, Level 1, 2 and 3
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	1,582	1,607
Fixed income securities | Quoted prices in active markets for identical assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	0	0
Fixed income securities | Other observable inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	1,582	1,607
Fixed income securities | Unobservable inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	0	0
United States treasuries | Fair Value, Inputs, Level 1, 2 and 3
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	461	566
United States treasuries | Quoted prices in active markets for identical assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	453	566
United States treasuries | Other observable inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	8	0
United States treasuries | Unobservable inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	0	0
Real estate | Fair Value, Inputs, Level 1, 2 and 3
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	212	291
Real estate | Quoted prices in active markets for identical assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	63	65
Real estate | Other observable inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	25	27
Real estate | Unobservable inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	124	199
Cash equivalents | Fair Value, Inputs, Level 1, 2 and 3
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	83	36
Cash equivalents | Quoted prices in active markets for identical assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	55	14
Cash equivalents | Other observable inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	28	22
Cash equivalents | Unobservable inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	0	0
Exchange traded funds | Fair Value, Inputs, Level 1, 2 and 3
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	91	84
Exchange traded funds | Quoted prices in active markets for identical assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	91	84
Exchange traded funds | Other observable inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	0	0
Exchange traded funds | Unobservable inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	0	0
Other | Fair Value, Inputs, Level 1, 2 and 3
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	402	405
Other | Quoted prices in active markets for identical assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	0	0
Other | Other observable inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	40	35
Other | Unobservable inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	362	370
Common collective and other trusts measured at net asset value | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets	$ 978	968
Money market funds measured at net asset value | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plan Disclosure [Line Items]
Total pension plan assets		$ 2