Derivative Financial Instruments - Gross and net amounts for OTC derivatives (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Asset derivatives
Gross amount	$ 165	$ 77
Offset-Counter-party netting	(3)	(1)
Net amount on balance sheet	162	76
Liability derivatives
Gross amount	(63)	(14)
Offsets-Counter-party netting	52	23
Net amount on balance sheet	(11)	9
OTC derivatives
Asset derivatives
Gross amount	54	23
Offset-Counter-party netting	(55)	(24)
Offsets-Cash collateral received	2	2
Net amount on balance sheet	1	1
Securities collateral (received) pledged	0	0
Net amount	1	1
Liability derivatives
Gross amount	(8)	(10)
Offsets-Counter-party netting	55	24
Offsets-Cash collateral (received) pledged	(49)	(17)
Net amount on balance sheet	(2)	(3)
Securities collateral (received) pledged	0	0
Net amount	$ (2)	$ (3)

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