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Severance
3 Months Ended
Mar. 31, 2022
Restructuring and Related Activities [Abstract]  
Severance Severance
Periodically, we reduce our workforce and accrue liabilities for the related severance costs. These workforce reductions result primarily from the progression or completion of our post-acquisition integration plans, increased competitive pressures, cost reduction initiatives, process improvements through automation and reduced workloads due to reduced demand for certain services.

Changes in our accrued liabilities for severance expenses were as follows:

Severance
 (Dollars in millions)
Balance at December 31, 2021$36 
Accrued to expense
Payments, net(16)
Balance at March 31, 2022$22