RETIREMENT BENEFITS (Tables)

12 Months Ended

Dec. 31, 2021

Retirement Benefits [Abstract]

Schedule of Net Benefit Costs

The net periodic benefit cost of defined benefit pension plans includes:

	Year Ended December 31,
Dollars in Millions	2021		2020		2019
Service cost — benefits earned during the year	$	51	$	48	$	26
Interest cost on projected benefit obligation	35		42		115
Expected return on plan assets	(99)		(98)		(200)
Amortization of prior service credits	(4)		(4)		(4)
Amortization of net actuarial loss	50		44		59
Settlements and Curtailments	(5)		10		1,640
Net periodic pension benefit cost	$	28	$	42	$	1,636

Schedule Of Defined Benefit Obligations And Assets

Changes in defined benefit pension plan obligations, assets, funded status and amounts recognized in the consolidated balance sheets were as follows:

	Year Ended December 31,
Dollars in Millions	2021		2020
Benefit obligations at beginning of year	$	3,242	$	2,940
Service cost—benefits earned during the year	51		48
Interest cost	35		42
Settlements and Curtailments	(101)		(145)
Actuarial (gains)/losses	(153)		233
Benefits paid	(46)		(58)
Foreign currency and other	(93)		182
Benefit obligations at end of year	$	2,935	$	3,242
Fair value of plan assets at beginning of year	$	2,807	$	2,536
Actual return on plan assets	125		196
Employer contributions	87		96
Settlements	(83)		(126)
Benefits paid	(46)		(58)
Foreign currency and other	(75)		163
Fair value of plan assets at end of year	$	2,815	$	2,807
Funded status	$	(120)	$	(435)
Assets/(Liabilities) recognized:
Other non-current assets	$	317	$	208
Other current liabilities	(24)		(26)
Other non-current liabilities	(413)		(617)
Funded status	$	(120)	$	(435)
Recognized in Accumulated other comprehensive loss:
Net actuarial losses	$	1,015	$	1,255
Prior service credit	(29)		(22)
Total	$	986	$	1,233

Schedule Of Accumulated And Projected Benefit Obligation In Excess Of Fair Value Of Plan Assets

Additional information related to pension plans was as follows:

	December 31,
Dollars in Millions	2021		2020
Pension plans with projected benefit obligations in excess of plan assets:
Projected benefit obligation	$	1,274	$	1,805
Fair value of plan assets	836		1,162
Pension plans with accumulated benefit obligations in excess of plan assets:
Accumulated benefit obligation	1,245		1,579
Fair value of plan assets	832		952

Schedule Of Defined Benefit Actuarial Assumptions Benefit Obligations

Weighted-average assumptions used to determine defined benefit pension plan obligations were as follows:

	December 31,
	2021		2020
Discount rate	1.6	%	1.2	%
Rate of compensation increase	1.0	%	1.3	%
Interest crediting rate	2.1	%	2.2	%

Schedule Of Defined Benefit Actuarial Assumptions Net Periodic Benefit Cost

Weighted-average actuarial assumptions used to determine defined benefit pension plan net periodic benefit cost were as follows:

	Year Ended December 31,
	2021		2020		2019
Discount rate	1.2	%	1.6	%	3.2	%
Expected long-term return on plan assets	3.6	%	4.1	%	4.5	%
Rate of compensation increase	1.3	%	1.3	%	0.5	%
Interest crediting rate	2.2	%	2.2	%	2.7	%

Fair Value of Pension and Postretirement Plan Assets by Asset Category

The fair value of pension and postretirement plan assets by asset category at December 31, 2021 and 2020 was as follows:

	December 31, 2021								December 31, 2020
Dollars in Millions	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Plan Assets
Equity securities	$	44	$	—	$	—	$	44	$	101	$	—	$	—	$	101
Equity funds	—		625		—		625		—		601		—		601
Fixed income funds	—		815		—		815		—		783		—		783
Corporate debt securities	—		485		—		485		—		533		—		533
U.S. Treasury and agency securities	—		67		—		67		—		70		—		70
Insurance contracts	—		—		130		130		—		—		149		149
Cash and cash equivalents	47		—		—		47		96		—		—		96
Other	—		224		42		266		—		112		40		152
Plan assets subject to leveling	$	91	$	2,216	$	172	$	2,479	$	197	$	2,099	$	189	$	2,485
Plan assets measured at NAV as a practical expedient							336								322
Net plan assets							$	2,815							$	2,807