Supplemental Equity and Comprehensive Income Information - NCI (Details) - Sumitomo 3M Limited ¥ in Billions |
1 Months Ended |
|---|---|
|
Sep. 30, 2014
JPY (¥)
| |
| Transactions with 3M subsidiaries that have non controlling interests | |
| Amount Of Acquistion For Remaining Noncontrolling Interest | ¥ 90 |
| 3M's effective ownership after transaction (as a percent) | 100.00% |
| Percent of interest acquired of Sumitomo 3M Limited | 25.00% |