Derivative Instruments - Schedule of Offsetting Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Financial Assets
Gross amount of recognized assets	$ 14,598	$ 11,867
Gross amounts offset	(3,806)	(4,453)
Net amount of assets	10,792	7,414
Cash collateral	(7,182)	(5,229)
Non-cash collateral	(2,495)	(1,245)
Net amount	1,115	940
Financial Liabilities
Gross amount of recognized liabilities	13,096	10,596
Gross amounts offset	(432)	(612)
Net amount of liabilities	12,664	9,984
Cash collateral	(110)	(188)
Non-cash collateral	(75)	(167)
Net amount	12,479	9,629
Excess non-cash collateral received	817	1,300
Excess non-cash collateral pledged	39	82
Derivative Instruments
Financial Assets
Gross amount of recognized assets	13,483	10,927
Gross amounts offset	(3,806)	(4,453)
Net amount of assets	9,677	6,474
Cash collateral	(7,182)	(5,229)
Non-cash collateral	(2,495)	(1,245)
Net amount	0	0
Financial Liabilities
Gross amount of recognized liabilities	617	967
Gross amounts offset	(432)	(612)
Net amount of liabilities	185	355
Cash collateral	(110)	(188)
Non-cash collateral	(75)	(167)
Net amount	0	0
Embedded Derivative Instruments
Financial Assets
Gross amount of recognized assets	1,115	940
Gross amounts offset	0	0
Net amount of assets	1,115	940
Cash collateral	0	0
Non-cash collateral	0	0
Net amount	1,115	940
Financial Liabilities
Gross amount of recognized liabilities	12,479	9,629
Gross amounts offset	0	0
Net amount of liabilities	12,479	9,629
Cash collateral	0	0
Non-cash collateral	0	0
Net amount	$ 12,479	$ 9,629