SEGMENTS (Tables)

3 Months Ended

12 Months Ended

Jun. 30, 2022

Mar. 31, 2022

Dec. 31, 2021

SEGMENTS

Summary of results of segments

	Three Months Ended June 30,
(Dollars in millions)	2022		2021
Revenue
United States	$	1,168	$	1,210
Japan		634		747
Principal Markets		1,516		1,842
Strategic Markets		970		953
Total revenue	$	4,288	$	4,751
Segment adjusted EBITDA
United States	$	200	$	275
Japan		115		140
Principal Markets		100		71
Strategic Markets		96		133
Total segment adjusted EBITDA	$	511	$	620

	Three Months Ended March 31,
(Dollars in millions)	2022		2021
Revenue
United States	$	1,169	$	1,228
Japan		706		763
Principal Markets		1,579		1,825
Strategic Markets		978		955
Total revenue	$	4,431	$	4,771
Segment adjusted EBITDA
United States	$	248	$	180
Japan		154		123
Principal Markets		98		52
Strategic Markets		92		96
Total segment adjusted EBITDA	$	592	$	450

	Year Ended December 31,
(Dollars in millions)	2021		2020		2019
Revenue
United States	$	4,805	$	5,084	$	5,340
Japan		2,923		3,042		2,929
Principal Markets		7,085		7,187		7,587
Strategic Markets		3,844		4,040		4,424
Total revenue	$	18,657	$	19,352	$	20,279
Segment adjusted EBITDA
United States	$	842	$	940	$	974
Japan		501		534		468
Principal Markets		341		375		609
Strategic Markets		540		488		660
Total segment adjusted EBITDA	$	2,223	$	2,337	$	2,710

Summary of reconciliation of consolidated totals to segment information

	Three Months Ended June 30,
(Dollars in millions)	2022		2021
Pretax income (loss)	$	(205)	$	(313)
Workforce rebalancing charges (benefits)		4		(11)
Transaction-related costs		103		173
Stock-based compensation expense		26		18
Interest expense		20		15
Depreciation expense		228		331
Amortization expense		308		351
Corporate expense not allocated to the segments		20		49
Other adjustments *		9		7
Segment adjusted EBITDA	$	511	$	620

* Other adjustments represent pension costs other than pension servicing costs and multi-employer plan costs.

	Three Months Ended March 31,
(Dollars in millions)	2022		2021
Pretax income (loss)	$	(189)	$	(403)
Workforce rebalancing charges		—		52
Transaction-related costs		58		55
Stock-based compensation expense		31		16
Interest expense		21		14
Depreciation expense		246		339
Amortization expense		326		330
Corporate expense not allocated to the segments		56		40
Other adjustments *		43		7
Segment adjusted EBITDA	$	592	$	450

* Other adjustments represents significant litigation costs and pension costs other than pension servicing costs and multi-employer plan costs.

	Year Ended December 31,
(Dollars in millions)	2021		2020		2019
Pretax income (loss)	$	(1,903)	$	(1,760)	$	(573)
Workforce rebalancing charges		39		918		159
Transaction-related costs		627		21		—
Stock-based compensation expense		71		64		51
Impairment expense		469		—		—
Interest expense		64		63		76
Depreciation expense		1,300		1,445		1,469
Amortization expense		1,314		1,408		1,335
Corporate expense not allocated to the segments		154		153		144
Other adjustments *		88		27		50
Segment adjusted EBITDA	$	2,223	$	2,337	$	2,710

* Other adjustments represent significant litigation costs and pension costs other than pension servicing costs and multi-employer plan costs.

Summary of geographic information

	Year Ended December 31,
(Dollars in millions)	2021		2020		2019
Revenue*
United States	$	4,805	$	5,081	$	5,340
Japan		2,923		3,037		2,925
Other countries		10,930		11,235		12,015
Total revenue	$	18,657	$	19,352	$	20,279

* Revenues are attributed to countries based on the location of the client and exclude certain allocations.

	At December 31,
(Dollars in millions)	2021		2020
Property and equipment, net
United States*	$	890	$	922
Canada		260		430
Other countries		1,773		2,638
Total property and equipment, net	$	2,923	$	3,991
Operating right-of-use assets, net
United States*	$	205	$	66
Japan		139		77
Belgium		176		197
Italy		86		114
Other countries		755		677
Total operating right-of-use assets, net	$	1,361	$	1,131

* Includes corporate and other.