CONSOLIDATED STATEMENT OF CHANGES IN EQUITY Statement - USD ($) $ in Millions	Total	Common shares:	Other capital:	Retained earnings:	Accumulated other comprehensive loss:	Total equity:
Balance at beginning of period at Dec. 31, 2017		$ 944	$ 8,439	$ 1,078	$ (1,562)
Issued for exercised stock options and vested restricted stock units		2	24
Repurchases of common shares (Note 4)		0	0
Shared-based compensation			9
Other transactions, net			(6)
Net earnings (loss)	$ 269			269
Dividends on common shares				(242)
Adjustments related to accounting pronouncements				260
Other comprehensive loss	$ 38				(224)
Balance at end of period at Mar. 31, 2018		946	8,466	1,365	(1,786)	$ 8,991
Dividends paid per common share	$ 0.32
Balance at beginning of period at Dec. 31, 2018	$ 9,046	933	8,172	1,093	(1,152)
Issued for exercised stock options and vested restricted stock units		1	2
Repurchases of common shares (Note 4)		(3)	(57)
Shared-based compensation			9
Other transactions, net			(5)
Net earnings (loss)	(289)			(289)
Dividends on common shares				(254)
Adjustments related to accounting pronouncements				(7)
Other comprehensive loss	358				358
Balance at end of period at Mar. 31, 2019	$ 8,801	$ 931	$ 8,121	$ 543	$ (794)	$ 8,801
Dividends paid per common share	$ 0.34