Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2023

Fair Value Measurements

Assets measured at fair value on a recurring basis

	December 31, 2023								December 31, 2022
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
	(in millions)
Assets
Investments (Note 5)	$	2,730	$	129	$	42	$	2,901	$	5,538	$	1,142	$	42	$	6,722
Derivative assets, net (Note 7)		—		64		—		64		—		805		—		805
	$	2,730	$	193	$	42	$	2,965	$	5,538	$	1,947	$	42	$	7,527
Liabilities
Securities sold, not yet purchased (Note 5)	$	3,288	$	185	$	—	$	3,473	$	6,326	$	169	$	—	$	6,495
Derivative liabilities, net (Note 7)		—		979		—		979		—		691		—		691
Other liabilities		—		329		—		329		—		692		—		692
	$	3,288	$	1,493	$	—	$	4,781	$	6,326	$	1,552	$	—	$	7,878