Allowance for Expected Credit Losses (Tables)

3 Months Ended

Mar. 31, 2024

Credit Loss [Abstract]

Changes in the allowance for expected credit losses on premiums receivable [Table Text Block]

The following table presents the balances of premiums receivable, net of the allowance for expected credit losses, at March 31, 2024 and 2023, and the changes in the allowance for expected credit losses for the three months ended March 31, 2024 and 2023.

	At and For the Three Months Ended March 31, 2024				At and For the Three Months Ended March 31, 2023
(in millions)	Premiums Receivable, Net of Allowance for Expected Credit Losses		Allowance for Expected Credit Losses		Premiums Receivable, Net of Allowance for Expected Credit Losses		Allowance for Expected Credit Losses
Balance, beginning of period	$	10,282	$	69	$	8,922	$	77
Current period change for expected credit losses			12				10
Write-offs of uncollectible premiums receivable			13				10
Balance, end of period	$	10,829	$	68	$	9,483	$	77

Changes in the allowance for estimated uncollectible reinsurance [Table Text Block]

The following table presents the balances of reinsurance recoverables, net of the allowance for estimated uncollectible reinsurance, at March 31, 2024 and 2023, and the changes in the allowance for estimated uncollectible reinsurance for the three months ended March 31, 2024 and 2023.

	At and For the Three Months Ended March 31, 2024				At and For the Three Months Ended March 31, 2023
(in millions)	Reinsurance Recoverables, Net of Allowance for Estimated Uncollectible Reinsurance		Allowance for Estimated Uncollectible Reinsurance		Reinsurance Recoverables, Net of Allowance for Estimated Uncollectible Reinsurance		Allowance for Estimated Uncollectible Reinsurance
Balance, beginning of period	$	8,143	$	118	$	8,063	$	132
Current period change for estimated uncollectible reinsurance			(1)				(1)
Write-offs of uncollectible reinsurance recoverables			—				—
Balance, end of period	$	8,100	$	117	$	8,091	$	131

Changes in the allowance for expected credit losses on contractholder receivables [Table Text Block]

The following table presents the balances of contractholder receivables, net of the allowance for expected credit losses, at March 31, 2024 and 2023, and the changes in the allowance for expected credit losses for the three months ended March 31, 2024 and 2023.

	At and For the Three Months Ended March 31, 2024				At and For the Three Months Ended March 31, 2023
(in millions)	Contractholder Receivables, Net of Allowance for Expected Credit Losses		Allowance for Expected Credit Losses		Contractholder Receivables, Net of Allowance for Expected Credit Losses		Allowance for Expected Credit Losses
Balance, beginning of period	$	3,249	$	20	$	3,579	$	17
Current period change for expected credit losses			(1)				2
Write-offs of uncollectible contractholder receivables			—				—
Balance, end of period	$	3,266	$	19	$	3,598	$	19