CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract]
Net Earnings	$ 1,631	$ 2,029	$ 2,580
Other Comprehensive Income (Loss), net of taxes and reclassifications to earnings [Abstract]
Derivatives qualifying as cash flow hedges	(51)	69	7
Pension and postretirement benefits	101	(324)	1,166
Available-for-sale securities	(54)	3	(37)
Foreign currency translation	(39)	(32)	(75)
Total Other Comprehensive Income/(Loss)	(43)	(284)	1,061
Comprehensive Income	1,588	1,745	3,641
Comprehensive Income Attributable to Noncontrolling Interest	66	25	17
Comprehensive Income Attributable to BMS	$ 1,522	$ 1,720	$ 3,624