Separate Accounts (Net Amount at Risk and Cash Surrender Values) (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025	Jun. 30, 2025	Dec. 31, 2024
Net Amount at Risk by Product and Guarantee [Line Items]
Policyholder Account Balance	$ 89,076		$ 88,046
Separate account liabilities	85,691	$ 85,528	86,085
Universal Life Insurance
Net Amount at Risk by Product and Guarantee [Line Items]
Policyholder Account Balance	2,653	2,627	2,605	$ 2,590
Separate account liabilities	7,209		6,632
Total account balances	9,862		9,237
Net amount at risk	30,438		32,356
Cash surrender value	9,297		8,642
Variable Annuities
Net Amount at Risk by Product and Guarantee [Line Items]
Policyholder Account Balance	3,228	3,403	3,625	3,833
Separate account liabilities	75,645	75,918	76,782	77,151
Total account balances	78,873		80,407
Net amount at risk	11,560		12,287
Cash surrender value	78,548		80,039
Index-linked Annuities
Net Amount at Risk by Product and Guarantee [Line Items]
Policyholder Account Balance	54,791	52,594	50,237	48,605
Separate account liabilities	0		0
Total account balances	54,791		50,237
Cash surrender value	55,964		49,450
Fixed Rate Annuities
Net Amount at Risk by Product and Guarantee [Line Items]
Policyholder Account Balance	12,769	13,252	14,619	14,665
Separate account liabilities	0		0
Total account balances	12,769		14,619
Cash surrender value	12,875		14,509
ULSG
Net Amount at Risk by Product and Guarantee [Line Items]
Policyholder Account Balance	4,321	4,461	4,619	4,779
Separate account liabilities	0		0
Total account balances	4,321		4,619
Net amount at risk	60,979		62,652
Cash surrender value	3,937		4,195
Company-Owned Life Insurance
Net Amount at Risk by Product and Guarantee [Line Items]
Policyholder Account Balance	649	646	645	1,166
Separate account liabilities	2,521	$ 2,457	2,399	$ 1,808
Total account balances	3,170		3,044
Net amount at risk	2,593		2,642
Cash surrender value	$ 2,967		$ 2,845