EMPLOYEE RETIREMENT PLANS - Changes in the Projected Benefit Obligation and Fair Value of Plan Assets, and the Funded Status of Defined-benefit Pension Plans (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
Jun. 30, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Settlements	$ (101)
Qualified
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Projected benefit obligation at January 1		$ 1,118	$ 1,034
Service cost		4	3	$ 3
Interest cost		15	23
Actuarial loss, net		(105)	85
Foreign currency exchange		(16)	18
Benefit payments		(230)	(45)
Divestitures		(14)	0
Settlements		(594)	0
Projected benefit obligation at December 31		178	1,118	1,034
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at January 1		863	780
Actual return on plan assets		(40)	67
Foreign currency exchange		(7)	8
Company contributions		107	57
Expenses, other		0	(4)
Benefit payments		(230)	(45)
Settlements		(594)	0
Fair value of plan assets at December 31		99	863	780
Funded status at December 31		(79)	(255)
Non-Qualified
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Projected benefit obligation at January 1		162	161
Service cost		0	0	0
Interest cost		4	5
Actuarial loss, net		(6)	10
Foreign currency exchange		0	0
Benefit payments		(12)	(13)
Divestitures		0	(1)
Settlements		0	0
Projected benefit obligation at December 31		148	162	161
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at January 1		0	0
Actual return on plan assets		0	0
Foreign currency exchange		0	0
Company contributions		12	13
Expenses, other		0	0
Benefit payments		(12)	(13)
Settlements		0	0
Fair value of plan assets at December 31		0	0	$ 0
Funded status at December 31		$ (148)	$ (162)

Amount of increase (decrease) in plan assets of defined benefit plan from actual return (loss) determined by change in fair value of plan assets adjusted for contributions, benefit payments, and other expenses.

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Amount of gain (loss) from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan.

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Amount of administration expense of defined benefit plan which decreases plan assets. Excludes plan administration expense paid by employer.

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Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.

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Amount of payment to participant of defined benefit plan which decreases benefit obligation. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services.

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Amount of payment, which decreases benefit obligation of defined benefit plan, for irrevocable action relieving primary responsibility for benefit obligation and eliminating risk for obligation and assets used to effect settlement. Transaction constituting settlement includes, but is not limited to, making lump-sum cash payment to participant in exchange for their rights to receive specified benefits and purchasing nonparticipating annuity contract. Excludes decreases to benefit obligation for remeasurement due to settlement.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of contribution received by defined benefit plan from employer which increases plan assets.

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- Definition

Amount of decrease in benefit obligation of defined benefit plan from disposal or classification as held-for-sale.

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- Definition

Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

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- Definition

Amount of foreign currency translation gain (loss) which (increases) decreases benefit obligation of defined benefit plan.

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- Definition

Amount of funded (unfunded) status of defined benefit plan, measured as difference between fair value of plan assets and benefit obligation. Includes, but is not limited to, overfunded (underfunded) status.

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- Definition

Amount of cost recognized for passage of time related to defined benefit plan.

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- Definition

Amount of payment to participant under defined benefit plan which decreases plan assets. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services.

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Amount of foreign currency translation gain (loss) which increases (decreases) plan assets of defined benefit plan.

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Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.

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Amount of payment, which decreases plan assets of defined benefit plan, for irrevocable action relieving primary responsibility for benefit obligation and eliminating risk for obligation and assets used to effect settlement. Transaction constituting settlement includes, but is not limited to, making lump-sum cash payment to participant in exchange for their rights to receive specified benefits and purchasing nonparticipating annuity contract.

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