Consolidated Balance Sheet (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Current assets
Cash and cash equivalents	$ 1,954	$ 2,581
Marketable securities - current	860	756
Accounts receivable - net	4,598	4,253
Inventories
Finished goods	1,846	1,790
Work in process	1,170	1,139
Raw materials and supplies	956	935
Total inventories	3,972	3,864
Other current assets	1,378	1,279
Total current assets	12,762	12,733
Marketable securities - non-current	1,360	1,453
Investments	120	122
Property, plant and equipment	23,241	23,068
Less: Accumulated depreciation	(14,611)	(14,416)
Property, plant and equipment - net	8,630	8,652
Goodwill	7,357	7,345
Intangible assets - net	1,631	1,688
Prepaid pension benefits	624	577
Other assets	1,063	980
Total assets	33,547	33,550
Current liabilities
Short-term borrowings and current portion of long-term debt	2,176	1,683
Accounts payable	1,866	1,799
Accrued payroll	491	708
Accrued income taxes	481	417
Other current liabilities	2,436	2,891
Total current liabilities	7,450	7,498
Long-term debt	4,401	4,326
Pension and postretirement benefits	1,809	1,794
Other liabilities	1,963	1,984
Total liabilities	15,623	15,602
Commitments and contingencies (Note 10)
3M Company shareholders' equity:
Common stock par value, $.01 par value, 944,033,056 shared issued	9	9
Additional paid-in capital	4,545	4,375
Retained earnings	33,312	32,416
Treasury stock, at cost: 289,754,609 shares at March 31, 2014; 280,736,817 shares at December 31, 2013	(16,577)	(15,385)
Accumulated other comprehensive income (loss)	(3,841)	(3,913)
Total 3M Company shareholders' equity	17,448	17,502
Noncontrolling interest	476	446
Total equity	17,924	17,948
Total liabilities and equity	$ 33,547	$ 33,550