CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Consolidated net earnings	$ 144	$ 291	$ 245	$ 485
Other comprehensive income:
Foreign currency translation adjustments	12	21	(35)	(1)
Actuarial gains, net of tax expense of $24, $18, $50 and $33	44	31	106	67
Prior service costs, net of tax expense (benefit) of $1, ($13), $1 and ($30)	0	(14)	(2)	(43)
Unrealized gains on available-for-sale securities	0	0	1	0
Total other comprehensive income	56	38	70	23
Comprehensive income	$ 200	$ 329	$ 315	$ 508