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Accumulated Other Comprehensive Income (Loss) ("AOCI") (Tables)

3 Months Ended

Mar. 31, 2023

Accumulated Other Comprehensive Income Other Comprehensive Income [Abstract]

Components of Accumulated Other Comprehensive Income (Loss)

The following table presents a summary of the changes in each component of AOCI for the three months ended March 31, 2023:


(in millions)		Unrealized gains (losses) on debt securities				Foreign currency translation adjustment				Pension benefit adjustment				Accumulated other comprehensive income (loss)
Balance at December 31, 2022		$	(751.6	)		$	(82.1	)		$	(35.2	)		$	(868.9	)
Change in unrealized gains (losses) on debt securities			146.5				—				—				146.5
Change in foreign currency translation adjustment			—				2.6				—				2.6
Amortization of net actuarial loss			—				—				0.5				0.5
Tax effect			(36.4	)			—				(0.2	)			(36.6	)
Balance at March 31, 2023		$	(641.5	)		$	(79.5	)		$	(34.9	)		$	(755.9	)

Adjustments for Reclassification of Other Comprehensive Income (Loss)

The following table presents the other comprehensive income (loss) reclassification adjustments for the three months ended March 31, 2023 and 2022:


(in millions)		Unrealized gains (losses) on debt securities				Foreign currency translation adjustment				Pension benefit adjustment				Total other comprehensive income (loss)
Three Months Ended March 31, 2023
Pretax change before reclassifications		$	142.0			$	2.6			$	—			$	144.6
Reclassifications out of AOCI			4.5				—				0.5				5.0
Tax effect			(36.4	)			—				(0.2	)			(36.6	)
Total other comprehensive income (loss), net of tax		$	110.1			$	2.6			$	0.3			$	113.0
Three Months Ended March 31, 2022
Pretax change before reclassifications		$	(497.1	)		$	2.3			$	—			$	(494.8	)
Reclassifications out of AOCI			0.7				—				1.6				2.3
Tax effect			124.8				—				(0.5	)			124.3
Total other comprehensive income (loss), net of tax		$	(371.6	)		$	2.3			$	1.1			$	(368.2	)

Reclassifications out of Accumulated Other Comprehensive Income (Loss)

The following table presents the effects of the reclassifications out of AOCI on the respective line items in the condensed consolidated statements of income:


		Three Months Ended March 31,
(in millions)		2023				2022				Affected line items
Unrealized gains (losses) on debt securities:
Net realized (losses) gains on sales of debt securities		$	(4.5	)		$	(0.7	)		Net investment losses
Tax effect		$	1.1			$	0.2
Pension benefit adjustment (1):
Amortization of net actuarial loss		$	(0.5	)		$	(1.5	)		Other operating expenses
Amortization of prior service cost			—				(0.1	)		Other operating expenses
Pretax total		$	(0.5	)		$	(1.6	)
Tax effect		$	0.2			$	0.5

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(1)

Amounts are components of net periodic cost. See Note 11 Employee Benefit Plans for additional details.