Restructuring Costs (Tables)

12 Months Ended

Dec. 31, 2023

Restructuring and Related Activities [Abstract]

Schedule of Restructuring Plan Expenses Incurred

The following table summarizes the expenses incurred in connection with our Merger restructuring initiatives:

(in millions)	Year Ended December 31, 2021		Year Ended December 31, 2022		Year Ended December 31, 2023		Incurred to Date
Contract termination costs	$	14	$	231	$	45	$	468
Severance costs	17		169		3		574
Network decommissioning	184		796		289		1,766
Total restructuring plan expenses	$	215	$	1,196	$	337	$	2,808

Schedule of Activity Related to Expenses Incurred and Cash Payments Made

The changes in the liabilities associated with our Merger restructuring initiatives, including expenses incurred and cash payments, are as follows:

(in millions)	December 31, 2022		Expenses Incurred		Cash Payments		Adjustments for Non-Cash Items (1)		December 31, 2023
Contract termination costs	$	190	$	45	$	(217)	$	—	$	18
Severance costs	—		3		(6)		3		—
Network decommissioning	280		289		(449)		(26)		94
Total	$	470	$	337	$	(672)	$	(23)	$	112

(1)    Non-cash items primarily consist of the write-off of assets within Network decommissioning.

The changes in the liabilities associated with our workforce reduction initiative, including expenses incurred and cash payments, are as follows:

(in millions)	December 31, 2022		Expenses Incurred		Cash Payments		Other (1)		December 31, 2023
Severance costs	$	—	$	462	$	(281)	$	14	$	195

(1)    Other primarily consists of previously expensed vacation accruals expected to be paid out as a component of severance.