Investments - Investment Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Schedule of Investments
Investments	$ 6,637		$ 6,809
Securities sold, not yet purchased, at fair value	5,654		6,495
Total Assets	26,269		27,914
Total liabilities	17,773		18,356
Net sales	2,758	$ 2,968
Cost of goods sold	2,260	2,538
Net (loss) income	(358)	885
Net (loss) income attributable to investee shareholders	(270)	323
Investment Segment
Schedule of Investments
Investments	6,520		6,719
Securities sold, not yet purchased, at fair value	5,654		6,495
Portion of unrealized (losses) gains that relates to equity and debt securities still held	(208)	403
Total Assets	15,642		17,234
Total liabilities	6,947		8,084
Net sales	0	0
Cost of goods sold	0	$ 0
Investment Segment | Equity securities
Schedule of Investments
Investments	4,361		4,619
Securities sold, not yet purchased, at fair value	5,477		6,326
Investment Segment | Debt securities
Schedule of Investments
Investments	2,159		2,100
Securities sold, not yet purchased, at fair value	177		169
Investment Segment | Communication
Schedule of Investments
Equity securities	132		199
Debt Securities	45		11
Investment Segment | Consumer, non-cyclical
Schedule of Investments
Securities sold, not yet purchased, at fair value	889		1,006
Investment Segment | Consumer, cyclical
Schedule of Investments
Equity securities	590		692
Securities sold, not yet purchased, at fair value	288		352
Investment Segment | Energy
Schedule of Investments
Equity securities	903		909
Securities sold, not yet purchased, at fair value	2,193		2,690
Investment Segment | Utilities
Schedule of Investments
Equity securities	1,417		1,205
Securities sold, not yet purchased, at fair value	788		813
Investment Segment | Healthcares
Schedule of Investments
Equity securities	490		320
Securities sold, not yet purchased, at fair value	417		387
Investment Segment | Financial
Schedule of Investments
Debt Securities	1,968		1,958
Investment Segment | Technology
Schedule of Investments
Equity securities	658		655
Investment Segment | Materials
Schedule of Investments
Equity securities	145		153
Securities sold, not yet purchased, at fair value	736		598
Investment Segment | Industrial
Schedule of Investments
Equity securities	26		486
Securities sold, not yet purchased, at fair value	166		480
Investment Segment | Real Estate
Schedule of Investments
Debt Securities	$ 146		$ 131