Restructuring Costs (Tables)

12 Months Ended

Dec. 31, 2023

Restructuring and Related Activities [Abstract]

Summary of Total Restructuring Costs

An analysis of total restructuring costs incurred under the Transformation program by category and by segment and corporate functions, from commencement to December 31, 2023, is as follows:

	HWC		R&B		Corporate		Total
2021
Real estate rationalization	$	—	$	—	$	19	$	19
Technology modernization		—		5		—		5
Process optimization		—		—		—		—
Other		—		—		2		2
2022
Real estate rationalization		—		—		79		79
Technology modernization		—		3		16		19
Process optimization		1		—		—		1
Other		—		—		—		—
2023
Real estate rationalization		—		—		46		46
Technology modernization		2		5		15		22
Process optimization		—		—		—		—
Other		—		—		—		—
Total
Real estate rationalization		—		—		144		144
Technology modernization		2		13		31		46
Process optimization		1		—		—		1
Other		—		—		2		2
Total	$	3	$	13	$	177	$	193

Rollforward of Liability Associated with Cash-based Charges

A rollforward of the liability associated with cash-based charges related to restructuring costs associated with the Transformation program is as follows:

	Real estate rationalization			Technology modernization		Process optimization			Other			Total
Balance at October 1, 2021	$	—		$	—	$	—		$	—		$	—
Charges incurred		—			—		—			2			2
Cash payments		—			—		—			(1	)		(1	)
Balance at December 31, 2021		—			—		—			1			1
Charges incurred		27			—		1			—			28
Cash payments		(21	)		—		(1	)		(1	)		(23	)
Balance at December 31, 2022		6			—		—			—			6
Charges incurred		22			8		—			—			30
Cash payments		(25	)		—		—			—			(25	)
Balance at December 31, 2023	$	3		$	8	$	—		$	—		$	11