Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Millions	Total	Common stock and capital in excess of par value	Accumulated other comprehensive income	Retained earnings	Treasury stock	Noncontrolling interests
Beginning Balance at Dec. 31, 2017	$ 351,954	$ 35,702	$ 58,571	$ 255,786	$ (1,763)	$ 3,658
Adoption of new accounting pronouncements	(71)		(61,375)	61,304
Net earnings (loss)	(1,071)			(1,138)		67
Other comprehensive income, net	335		327			8
Issuance (acquisition) of common stock	24	24
Transactions with noncontrolling interests	(119)	(37)				(82)
Ending Balance at Mar. 31, 2018	351,052	35,689	(2,477)	315,952	(1,763)	3,651
Beginning Balance at Dec. 31, 2018	352,500	35,715	(5,015)	321,112	(3,109)	3,797
Net earnings (loss)	21,732			21,661		71
Other comprehensive income, net	310		288			22
Issuance (acquisition) of common stock	(1,677)	13			(1,690)
Transactions with noncontrolling interests	(274)	(98)				(176)
Ending Balance at Mar. 31, 2019	$ 372,591	$ 35,630	$ (4,727)	$ 342,773	$ (4,799)	$ 3,714