Income Taxes Schedule of Income before Income Tax, Domestic and Foreign (Tables)

12 Months Ended

Dec. 31, 2022

Dec. 31, 2021

Income Tax Disclosure [Abstract]

Schedule of Income before Income Tax, Domestic and Foreign

The components of income before income taxes are listed below.

	Years ended December 31,
	2022		2021		2020
Domestic	$	707.4	$	653.6	$	279.9
Foreign	561.5		568.5		81.4
Total	$	1,268.9	$	1,222.1	$	361.3

Restructuring and Related Costs [Table Text Block]

Restructuring Charges

	Years ended December 31,
	20221		20212		2020
Severance and termination costs	$	(0.1)	$	0.4	$	140.4
Lease restructuring costs	85.4		6.3		256.0
Other restructuring costs	17.1		3.9		17.4
Total restructuring charges	$	102.4	$	10.6	$	413.8

1The amounts for the year ended December 31, 2022 represent 2022 Real Estate Actions, as well as adjustments to the actions taken in 2020. The 2022 Real Estate Actions did not include any severance and termination costs.

2The amounts for the year ended December 31, 2021 represent adjustments to the actions taken in 2020.

2022 Real Estate Actions

In the fourth quarter of 2022, the Company took Real Estate Actions related to new real estate exits and lease terminations to further optimize the real estate footprint supporting our office-home hybrid service model in a post-pandemic economy. All included opportunities for further efficiencies as a result of the current working environment were identified and completed during the fourth quarter of 2022.

A summary of the restructuring activities related to the 2022 Real Estate Actions is as follows:

	2022 Real Estate Actions
	Restructuring Expense		Non-Cash Items		Cash Payments		Liability at December 31, 2022
Lease impairment costs	$	84.4	$	84.4	$	0.0	$	0.0
Other restructuring costs	14.2		13.5		0.7		0.0
Total	$	98.6	$	97.9	$	0.7	$	0.0

Our restructuring charges for these actions totaled $98.6 for the year ended December 31, 2022. These Real Estate Actions, taken during the fourth quarter of 2022, reduced our occupied global real estate footprint by approximately 6.7% or 500,000 square feet.

Net restructuring charges related to the 2022 Real Estate Actions were comprised of $64.1 at MD&E, $25.9 at IA&C, $8.0 at SC&E and $0.6 at Corporate and Other for the year ended December 31, 2022, which include non-cash lease impairment costs of $54.3, $22.3, $7.0 and $0.8, respectively.

Lease impairment costs, which relate to the office spaces that were vacated as part of the 2022 Real Estate Actions, included impairments of operating lease right-of-use assets and associated leasehold improvements, furniture and asset retirement obligations. Lease impairments were calculated based on estimated fair values using market participant assumptions including forecasted net discounted cash flows related to the operating lease right-of-use assets.