v3.19.3.a.u2
Leases - Operating leases not yet commenced (Details)
$ in Millions
Dec. 31, 2019
USD ($)
Leases
Additional operating lease commitments that have not yet commenced
$ 23
X
- Definition
The value of the lessee's operating lease which has not yet commenced.
+ References
No definition available.
+ Details
Name:
mmm_LesseeOperatingLeaseLeaseNotYetCommencedAmount
Namespace Prefix:
mmm_
Data Type:
xbrli:monetaryItemType
Balance Type:
credit
Period Type:
instant
X
- References
No definition available.
+ Details
Name:
us-gaap_LeasesAbstract
Namespace Prefix:
us-gaap_
Data Type:
xbrli:stringItemType
Balance Type:
na
Period Type:
duration