Consolidated Statements of Comprehensive Earnings - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statement of Comprehensive Income [Abstract]
Net earnings	$ 6,341	$ 7,250	$ 7,032
Change in currency translation adjustments:
Unrealized gains (losses), net of income taxes of $620 in 2017, ($101) in 2016 and ($143) in 2015	330	(14)	(2,248)
(Gains)/losses transferred to earnings, net of income taxes of $- in 2017, 2016 and 2015	(2)	5	(1)
Change in net loss and prior service cost:
Net gains (losses) and prior service costs, net of income taxes of ($17) in 2017, $78 in 2016 and $17 in 2015	523	(460)	(536)
Amortization of net losses, prior service costs and net transition costs, net of income taxes of ($31) in 2017, ($43) in 2016 and ($48) in 2015	228	224	227
Change in fair value of derivatives accounted for as hedges:
Gains (losses) recognized, net of income taxes of $8 in 2017, ($4) in 2016 and ($5) in 2015	(44)	8	38
(Gains) losses transferred to earnings, net of income taxes of $2 in 2017, ($3) in 2016 and $14 in 2015	(11)	30	(102)
Total other comprehensive earnings (losses)	1,024	(207)	(2,622)
Total comprehensive earnings	7,365	7,043	4,410
Less comprehensive earnings attributable to:
Noncontrolling interests	306	233	113
Comprehensive earnings attributable to PMI	$ 7,059	$ 6,810	$ 4,297