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	$ 15,997	$ 12,147
Gross amounts offset	(3,787)	(4,409)
Net amount of assets	12,210	7,738
Cash collateral	(7,039)	(5,107)
Non-cash collateral	(2,473)	(1,198)
Net amount	2,698	1,433
Financial Liabilities
Gross amount of recognized liabilities	13,057	10,045
Gross amounts offset	(432)	(612)
Net amount of liabilities	12,625	9,433
Cash collateral	(91)	(188)
Non-cash collateral	(85)	(168)
Net amount	12,449	9,077
Excess non-cash collateral received	791	1,300
Excess non-cash collateral pledged	29	81
Derivative Instruments
Financial Assets
Gross amount of recognized assets	13,299	10,714
Gross amounts offset	(3,787)	(4,409)
Net amount of assets	9,512	6,305
Cash collateral	(7,039)	(5,107)
Non-cash collateral	(2,473)	(1,198)
Net amount	0	0
Financial Liabilities
Gross amount of recognized liabilities	608	968
Gross amounts offset	(432)	(612)
Net amount of liabilities	176	356
Cash collateral	(91)	(188)
Non-cash collateral	(85)	(168)
Net amount	0	0
Embedded Derivative Instruments
Financial Assets
Gross amount of recognized assets	2,698	1,433
Gross amounts offset	0	0
Net amount of assets	2,698	1,433
Cash collateral	0	0
Non-cash collateral	0	0
Net amount	2,698	1,433
Financial Liabilities
Gross amount of recognized liabilities	12,449	9,077
Gross amounts offset	0	0
Net amount of liabilities	12,449	9,077
Cash collateral	0	0
Non-cash collateral	0	0
Net amount	$ 12,449	$ 9,077