Condensed Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Operating activities
Net income	$ 1,218	$ 1,391
Adjustments to reconcile to net cash provided by operating activities
Depreciation and amortization	743	740
Deferred income taxes	(286)	48
Pension and other postretirement benefits expense	260	286
Contributions to pension plans	(333)	(303)
Contributions to other postretirement benefits plans	(38)	(45)
Excess tax benefit from equity-based compensation	(20)	(24)
Gain on sale of businesses	(68)	(2)
Changes in working capital	(391)	(813)
Other - net	(151)	135
Net cash provided by operating activities	934	1,413
Investing activities
Capital expenditures for property, plant and equipment	(378)	(372)
Sales (purchases) of short-term investments - net	445	(185)
Proceeds from sale of businesses	282	761
Other - net	(56)	(61)
Net cash provided by investing activities	293	143
Financing activities
Proceeds from borrowings	0	6
Payments on borrowings	(580)	(1,012)
Cash dividends paid	(700)	(597)
Exercise of employee stock options	50	98
Repurchase of shares	267	0
Excess tax benefit from equity-based compensation	20	24
Other - net	(3)	(4)
Net cash used in financing activities	(1,480)	(1,485)
Effect of currency on cash	(7)	(6)
Total (decrease) increase in cash	(260)	65
Cash at the beginning of the period	915	577
Cash at the end of the period	$ 655	$ 642