Restructuring and Related Activities (Tables)

3 Months Ended

Mar. 31, 2022

Restructuring and Related Activities [Abstract]

Restructuring and Related Costs

Restructuring and Other Costs, Before Tax
	Incurred in the Three Months Ended March 31,				Cumulative Incurred Through March 31, 2022		Total Amount Expected to be Incurred
	2022		2021
Severance benefits	$	(2)	$	—	$	46	$	46
IT costs	2		2		13		26
Professional fees and other expenses	5		9		51		58
Total restructuring and other costs, before tax	$	5	$	11	$	110	$	130

Schedule of Restructuring Reserve by Type of Cost

Accrued Restructuring and Other Costs
	Three Months Ended March 31, 2022
	Severance Benefits and Related Costs		IT Costs		Professional Fees and Other		Total Restructuring and Other Costs Liability
Balance, beginning of period	$	18	$	—	$	—	$	18
Incurred	(2)		2		5		5
Payments	—		(2)		(5)		(7)
Balance, end of period	$	16	$	—	$	—	$	16

Accrued Restructuring and Other Costs
	Three Months Ended March 31, 2021
	Severance Benefits and Related Costs		IT Costs		Professional Fees and Other		Total Restructuring and Other Costs Liability
Balance, beginning of period	$	54	$	—	$	—	$	54
Incurred	—		2		9		11
Payments	(6)		(2)		(6)		(14)
Balance, end of period	$	48	$	—	$	3	$	51