SEGMENTS (Tables)

3 Months Ended

Mar. 31, 2022

SEGMENTS

Summary of results of segments

	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

Summary of reconciliation of consolidated totals to segment information

	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.