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BUSINESS SEGMENT INFORMATION
 9 Months Ended
Sep. 30, 2026
Segment Reporting [Abstract]  
BUSINESS SEGMENT INFORMATION BUSINESS SEGMENT INFORMATION
The following tables are a summary of segment information for the three and nine months ended September 30, 2026, and 2025. The “management approach” has been used to present the following segment information. This approach is based upon the way the management of the Company organizes segments within an enterprise for making operating decisions and assessing performance. Financial information is reported on the basis that it is used internally by the CODM for evaluating segment performance and deciding how to allocate resources to segments. The Company’s chief executive officer has been identified as the CODM.
The Company’s CODM uses segment operating income as the primary measure for assessing segment performance and to allocate resources. This segment performance measure excludes the amortization of intangibles and other assets, restructuring and other charges, and certain corporate charges for items such as transaction costs and other special items. Other operating expenses are comprised primarily of rent, maintenance, sendout testing, utilities, travel and entertainment, and other segment expenses, including shipping costs for Dx. Segment asset information is not presented because it is not used by the CODM.
Three Months Ended September 30, 2026
DxBLSIntercompany eliminations and otherLHI
Revenues:
Revenues$2,948.9 $866.7 $(5.6)$3,810.0 
Operating Earnings:
Labor1,285.5 319.9 
Supplies635.5 126.3 
Shipping costs130.3 
Depreciation70.8 28.4 
Other operating expenses465.5 102.8 
Segment operating income$491.6 $159.0 $650.6 
General corporate and unallocated expenses(153.9)
Amortization of intangibles and other assets(78.7)
Restructuring and other charges(15.9)
Total Operating income
402.1 
Other (expense) income:
Interest expense(59.1)
Investment income1.4 
Equity method loss, net(11.0)
Other, net(5.4)
Earnings from operations before income taxes$328.0 
Three Months Ended September 30, 2025
DxBLSIntercompany eliminations and otherLHI
Revenues:
Revenues$2,769.6 $799.1 $(5.2)$3,563.5 
Operating Earnings:
Labor1,200.6 313.8 
Supplies589.4 119.5 
Shipping costs101.8 
Depreciation66.4 29.0 
Other operating expenses462.8 102.8 
Segment operating income$450.4 $132.2 $582.6 
General corporate and unallocated expenses(110.6)
Amortization of intangibles and other assets(69.5)
Restructuring and other charges(5.9)
Total Operating income396.6 
Other (expense) income:
Interest expense(56.0)
Investment income3.5 
Equity method loss, net(5.2)
Other, net(1.9)
Earnings from operations before income taxes$337.0 
Nine Months Ended September 30, 2026
DxBLSIntercompany eliminations and otherLHI
Revenues:
Revenues$8,611.7 $2,483.5 $(16.5)$11,078.7 
Operating Earnings:
Labor3,697.0 942.4 
Supplies1,874.1 378.6 
Shipping costs362.9 
Depreciation202.7 84.7 
Other operating expenses1,365.0 293.0 
Segment operating income$1,472.9 $421.9 $1,894.8 
General corporate and unallocated expenses(400.5)
Amortization of intangibles and other assets(232.4)
Restructuring and other charges(27.4)
Total Operating income1,234.5 
Other (expense) income:
Interest expense(175.3)
Investment income19.2 
Equity method loss, net(22.3)
Other, net(22.0)
Earnings from operations before income taxes$1,034.1 
Nine Months Ended September 30, 2025
DxBLSIntercompany eliminations and otherLHI
Revenues:
Revenues$8,148.0 $2,305.2 $(17.3)$10,435.9 
Operating Earnings:
Labor3,479.3 905.8 
Supplies1,767.3 361.4 
Shipping costs295.0 
Depreciation193.5 86.6 
Other operating expenses1,347.2 294.0 
Segment operating income$1,360.7 $362.4 $1,723.1 
General corporate and unallocated expenses(382.2)
Amortization of intangibles and other assets(207.4)
Restructuring and other charges(16.4)
Total Operating income1,117.1 
Other (expense) income:
Interest expense(169.1)
Investment income11.7 
Equity method loss, net(7.2)
Other, net(35.6)
Earnings from operations before income taxes$916.9