CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
COMPREHENSIVE INCOME
Net Earnings	$ 382	$ 922	$ 1,877	$ 2,448
Other Comprehensive Income/(Loss), net of taxes and reclassifications to earnings [Abstract]
Derivatives qualifying as cash flow hedges	85	(31)	66	(60)
Pension and postretirement benefits	43	(27)	172	56
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax	(7)	13	(33)	19
Foreign currency translation	(221)	(8)	(216)	21
Other Comprehensive Income/(Loss)	(100)	(53)	(11)	36
Comprehensive Income	282	869	1,866	2,484
Net Income (Loss) Attributable to Noncontrolling Interest	9	6	18	(42)
Comprehensive Income/(Loss) Attributable to Noncontrolling Interest	9	6	18	(42)
Comprehensive Income Attributable to BMS	$ 273	$ 863	$ 1,848	$ 2,526