Consolidated Balance Sheet (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Current assets
Cash and cash equivalents	$ 1,929	$ 2,581
Marketable securities - current	767	756
Accounts receivable - net	4,711	4,253
Inventories
Finished goods	1,850	1,790
Work in process	1,167	1,139
Raw materials and supplies	928	935
Total inventories	3,945	3,864
Other current assets	1,329	1,279
Total current assets	12,681	12,733
Marketable securities - non-current	1,105	1,453
Investments	108	122
Property, plant and equipment	23,095	23,068
Less: Accumulated depreciation	(14,596)	(14,416)
Property, plant and equipment - net	8,499	8,652
Goodwill	7,213	7,345
Intangible assets - net	1,516	1,688
Prepaid pension benefits	720	577
Other assets	934	980
Total assets	32,776	33,550
Current liabilities
Short-term borrowings and current portion of long-term debt	2,119	1,683
Accounts payable	1,796	1,799
Accrued payroll	728	708
Accrued income taxes	382	417
Other current liabilities	2,680	2,891
Total current liabilities	7,705	7,498
Long-term debt	5,225	4,326
Pension and postretirement benefits	1,849	1,794
Other liabilities	1,791	1,984
Total liabilities	16,570	15,602
Commitments and contingencies (Note 11)
3M Company shareholders' equity:
Common stock par value, $.01 par value, 944,033,056 shared issued	9	9
Additional paid-in capital	4,277	4,375
Retained earnings	34,484	32,416
Treasury stock, at cost: 303,214,214 shares at September 30, 2014; 280,736,817 shares at December 31, 2013	(18,489)	(15,385)
Accumulated other comprehensive income (loss)	(4,108)	(3,913)
Total 3M Company shareholders' equity	16,173	17,502
Noncontrolling interest	33	446
Total equity	16,206	17,948
Total liabilities and equity	$ 32,776	$ 33,550