Business combinations (Tables)

12 Months Ended

Mar. 31, 2022

Disclosure Of Business Combinations [Line Items]

Summary of Purchase Price Allocation

The purchase price is allocated to assets acquired and liabilities assumed based upon determination of fair values at the dates of acquisition as follows:

			(Dollars in  millions)
Component	Acquiree's carrying amount		Fair value adjustments			Purchase price allocated
Net assets*		18		—			18
Intangible Assets
Vendor Relationships		—		36			36
Customer Contracts and Relationships		—		24			24
Brand		—		8			8
Software		—		4			4
Deferred tax liabilities on intangible assets		—		(3	)		(3	)
		18		69			87
Goodwill							102
Total purchase price							189

*Includes cash and cash equivalents acquired of $11 million

HIPUS Co. Ltd.

Disclosure Of Business Combinations [Line Items]

Summary of Purchase Price Allocation

The purchase price has been allocated based on management’s estimates, assumptions and independent appraisal of fair values as follows:

			(Dollars in  millions)
Component	Acquiree's carrying amount		Fair value adjustments			Purchase price allocated
Net assets*		6		—			6
Intangible assets - Customer contracts and relationships		—		17			17
Deferred tax liabilities on intangible assets		—		(5	)		(5	)
		6		12			18
Goodwill							16
Less: Non-controlling interest							(4	)
Total purchase price							30

* Includes cash and cash equivalents acquired of $26 million

Stater N.V

Disclosure Of Business Combinations [Line Items]

Summary of Purchase Price Allocation

The purchase price has been allocated based on management’s estimates and independent appraisal of fair values as follows:

			(Dollars in  millions)
Component	Acquiree's carrying amount		Fair value adjustments			Purchase price allocated
Net assets*		78		—			78
Intangible assets
Customer Contracts and Relationships		—		79			79
Technology		—		16			16
Brand		—		3			3
Deferred tax liabilities on intangible assets		—		(20	)		(20	)
		78		78			156
Goodwill							57
Less: Non-controlling interest							(42	)
Total purchase price							171

* Includes cash and cash equivalents acquired of $73 million

Outbox systems Inc. dba Simplus

Disclosure Of Business Combinations [Line Items]

Summary of Purchase Price Allocation

The purchase price has been allocated based on management’s estimates and independent appraisal of fair values as follows:

			(Dollars in  millions)
Component	Acquiree's carrying amount		Fair value adjustments			Purchase price allocated
Net assets*		3		—			3
Intangible assets
Customer Contracts and Relationships		—		20			20
Salesforce Relationships		—		43			43
Brand		—		15			15
Deferred tax liabilities on intangible assets		—		(20	)		(20	)
		3		58			61
Goodwill							130
Total purchase price							191

* Includes cash and cash equivalents acquired of $1 million

Disclosure of Detailed Information About Acquisition Date Fair Value of Each Major Class of Consideration Explanatory

The fair value of each major class of consideration as of the acquisition date is as follows:

	(Dollars in millions)
Component	Purchase price allocated
Cash consideration		180
Fair value of contingent consideration		11
		191