Liability For Future Policy Benefits (Revenue and Interest Expense) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Benefit reserves \| International Businesses
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	$ 5,441	$ 5,727
Interest expense	1,635	1,589
Benefit reserves \| Other Segments
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	276	273
Interest expense	259	253
Benefit reserves \| Total
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	10,406	20,145
Interest expense	3,895	3,667
Benefit reserves \| Institutional \| Retirement Strategies
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	3,725	13,223
Interest expense	1,796	1,619
Benefit reserves \| Term Life \| Individual Life
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	964	922
Interest expense	205	206
Benefit reserves \| Variable Universal Life \| Individual Life
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	0	0
Interest expense	0	0
Deferred profit liability \| International Businesses
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	(352)	(124)
Interest expense	172	157
Deferred profit liability \| Other Segments
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	(3)	(7)
Interest expense	2	2
Deferred profit liability \| Total
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	(223)	(385)
Interest expense	290	277
Deferred profit liability \| Institutional \| Retirement Strategies
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	132	(254)
Interest expense	116	118
Deferred profit liability \| Term Life \| Individual Life
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	0	0
Interest expense	0	0
Deferred profit liability \| Variable Universal Life \| Individual Life
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	0	0
Interest expense	0	0
Additional insurance reserves \| International Businesses
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	0	0
Interest expense	1	1
Additional insurance reserves \| Other Segments
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	35	0
Interest expense	0	0
Additional insurance reserves \| Total
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	1,356	1,622
Interest expense	292	263
Additional insurance reserves \| Institutional \| Retirement Strategies
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	0	0
Interest expense	0	0
Additional insurance reserves \| Term Life \| Individual Life
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	0	0
Interest expense	0	0
Additional insurance reserves \| Variable Universal Life \| Individual Life
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	1,321	1,622
Interest expense	291	262
Revenues \| International Businesses
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	5,089	5,603
Revenues \| Other Segments
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	308	266
Revenues \| Total
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	11,539	21,382
Revenues \| Institutional \| Retirement Strategies
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	3,857	12,969
Revenues \| Term Life \| Individual Life
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	964	922
Revenues \| Variable Universal Life \| Individual Life
Liability for Future Policy Benefit, Activity [Line Items]
Revenue	1,321	1,622
Interest Expense \| International Businesses
Liability for Future Policy Benefit, Activity [Line Items]
Interest expense	1,808	1,747
Interest Expense \| Other Segments
Liability for Future Policy Benefit, Activity [Line Items]
Interest expense	261	255
Interest Expense \| Total
Liability for Future Policy Benefit, Activity [Line Items]
Interest expense	4,477	4,207
Interest Expense \| Institutional \| Retirement Strategies
Liability for Future Policy Benefit, Activity [Line Items]
Interest expense	1,912	1,737
Interest Expense \| Term Life \| Individual Life
Liability for Future Policy Benefit, Activity [Line Items]
Interest expense	205	206
Interest Expense \| Variable Universal Life \| Individual Life
Liability for Future Policy Benefit, Activity [Line Items]
Interest expense	$ 291	$ 262