Investments - Investment Segment - Summarized Financial Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Net sales	$ 1,860	$ 2,300
Cost of goods sold	1,810	1,900
Net (loss) income	(2,306)	(664)
Net income (loss) attributable to shareholders	(1,384)	(394)
Herbalife
Net sales	1,262	1,172
Cost of goods sold	246	242
Net (loss) income	46	96
Net income (loss) attributable to shareholders	$ 46	$ 96