Long-term Debt	6 Months Ended
Jun. 30, 2015
Debt Disclosure [Abstract]
Debt Disclosure [Text Block]	8. Long-term Debt Senior Notes Issuances In March 2015, MetLife, Inc. issued $500 million of senior notes due in March 2025 which bear interest at a fixed rate of 3.00%, payable semi-annually. Also in March 2015, MetLife, Inc. issued $1.0 billion of senior notes due in March 2045 which bear interest at a fixed rate of 4.05%, payable semi-annually. In connection with the issuances, MetLife, Inc. incurred $12 million of related costs which have been capitalized and included in other assets. These costs are being amortized over the terms of the senior notes.

Long-term Debt

6 Months Ended

Jun. 30, 2015

8. Long-term Debt

Senior Notes Issuances

In March 2015, MetLife, Inc. issued $500 million of senior notes due in March 2025 which bear interest at a fixed rate of 3.00%, payable semi-annually. Also in March 2015, MetLife, Inc. issued $1.0 billion of senior notes due in March 2045 which bear interest at a fixed rate of 4.05%, payable semi-annually. In connection with the issuances, MetLife, Inc. incurred $12 million of related costs which have been capitalized and included in other assets. These costs are being amortized over the terms of the senior notes.