Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Millions	Total	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock/ Additional Paid- in-Capital	Common Stock	Non- Controlling Interests
Beginning balance at Dec. 31, 2016	$ 5,728	$ 7,314	$ (2,400)	$ (252)	$ 111	$ 955
Comprehensive income
Net earnings (loss)	337	350				(13)
Other comprehensive income (loss)	69		69			0
Comprehensive income	406	350	69			(13)
Stock issued (repurchased)	(682)			(683)		0
Stock issued (repurchased)					1
Dividends declared	(324)	(312)				(12)
Ending balance at Dec. 31, 2017	5,128	7,352	(2,331)	(935)	112	930
Comprehensive income
Net earnings (loss)	(159)	(183)				24
Other comprehensive income (loss)	(345)		(347)			2
Comprehensive income	(504)	(183)	(347)			26
Stock issued (repurchased)	(1,160)			(1,124)		(36)
Stock issued (repurchased)					0
Dividends declared	(314)	(308)				(6)
Ending balance at Dec. 31, 2018	3,205	6,933	(2,695)	(2,059)	112	914
Comprehensive income
Net earnings (loss)	1,198	1,184				14
Other comprehensive income (loss)	77		77			0
Comprehensive income	1,275	1,184	77			14
Stock issued (repurchased)	(110)			(110)		0
Dividends declared	(313)	(308)				(5)
Ending balance at Dec. 31, 2019	$ 4,118	$ 7,870	$ (2,618)	$ (2,169)	$ 112	$ 923