Condensed Consolidated Statement Of Equity - 3 months ended Mar. 31, 2018 - USD ($) $ in Millions	Common Series A Common stock	Additional paid-in capital	Accumulated other comprehensive earnings (loss)	Retained earnings (accumulated deficit)	Noncontrolling Interest in equity of subsidiaries	Total
Beginning Balance at Dec. 31, 2017	$ 1	$ 370	$ 59	$ 2,179	$ 16,493	$ 19,102
Net earnings (loss)				(44)	(280)	(324)
Other comprehensive income (loss)			11		91	102
Stock compensation		8			43	51
Proceeds from exercise of equity instruments in subsidiary		(25)			45	20
Shares repurchased by subsidiary		18			(220)	(202)
Dividends paid by subsidiary					(39)	(39)
Taxes paid in lieu of shares issued for stock-based compensation		(2)				(2)
Other					4	4
Ending Balance at Mar. 31, 2018	$ 1	$ 369	69	2,136	16,127	18,702
Adoption of new accounting guidance			$ (1)	$ 1	$ (10)	$ (10)