Business Combinations (Tables)

12 Months Ended

Dec. 31, 2020

Business Combinations [Abstract]

Schedule of Business Acquisitions, by Acquisition

The following table summarizes the estimated fair values of identifiable acquired assets and assumed liabilities:

(Dollars in millions)
Assets	As of July 1, 2020
Cash and cash equivalents	$	4
Receivable, net	12
Property, plant and equipment, net	3
Operating lease right-of-use assets	10
Goodwill	23
Total assets	$	52
Tax payable	2
Accrued liabilities	3
Operating lease non-current liabilities	10
Total liabilities	$	15
Net assets acquired	$	37