Relationship with Bayview Lending Group LLC and Bayview Financial Holdings, L.P.	12 Months Ended
Dec. 31, 2017
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Relationship with Bayview Lending Group LLC and Bayview Financial Holdings, L.P.	24. Relationship with Bayview Lending Group LLC and Bayview Financial Holdings, L.P. M&T holds a 20% minority interest in Bayview Lending Group LLC (“BLG”), a privately-held commercial mortgage company. M&T recognizes income or loss from BLG using the equity method of accounting. That investment had no remaining carrying value at December 31, 2017 as a result of cumulative losses recognized and cash distributions received. Bayview Financial Holdings, L.P. (together with its affiliates, “Bayview Financial”), a privately-held specialty financial company, is BLG’s majority investor. In addition to their common investment in BLG, the Company and Bayview Financial conduct other business activities with each other. The Company has obtained loan servicing rights for mortgage loans from BLG and Bayview Financial having outstanding principal balances of $3.0 billion and $3.5 billion at December 31, 2017 and 2016, respectively. Revenues from those servicing rights were $17 million, $19 million and $23 million during 2017, 2016 and 2015, respectively. The Company sub-services residential mortgage loans for Bayview Financial having outstanding principal balances of $56.6 billion and $30.4 billion at December 31, 2017 and 2016, respectively. Revenues earned for sub-servicing loans for Bayview Financial were $103 million, $98 million and $115 million in 2017, 2016 and 2015, respectively. In addition, the Company held $136 million and $158 million of mortgage-backed securities in its held-to-maturity portfolio at December 31, 2017 and 2016, respectively, that were securitized by Bayview Financial. In April 2017, the Company provided a loan to Bayview Financial for $100 million at terms consistent with those offered to nonaffiliated customers. That loan was subsequently paid in full in June 2017. Also in June 2017, a new syndicated loan facility was entered into by Bayview Financial for $750 million, of which the Company held $88 million at December 31, 2017.

24. Relationship with Bayview Lending Group LLC and Bayview Financial Holdings, L.P.

M&T holds a 20% minority interest in Bayview Lending Group LLC (“BLG”), a privately-held commercial mortgage company. M&T recognizes income or loss from BLG using the equity method of accounting. That investment had no remaining carrying value at December 31, 2017 as a result of cumulative losses recognized and cash distributions received.

Bayview Financial Holdings, L.P. (together with its affiliates, “Bayview Financial”), a privately-held specialty financial company, is BLG’s majority investor. In addition to their common investment in BLG, the Company and Bayview Financial conduct other business activities with each other. The Company has obtained loan servicing rights for mortgage loans from BLG and Bayview Financial having outstanding principal balances of $3.0 billion and $3.5 billion at December 31, 2017 and 2016, respectively. Revenues from those servicing rights were $17 million, $19 million and $23 million during 2017, 2016 and 2015, respectively. The Company sub-services residential mortgage loans for Bayview Financial having outstanding principal balances of $56.6 billion and $30.4 billion at December 31, 2017 and 2016, respectively. Revenues earned for sub-servicing loans for Bayview Financial were $103 million, $98 million and $115 million in 2017, 2016 and 2015, respectively. In addition, the Company held $136 million and $158 million of mortgage-backed securities in its held-to-maturity portfolio at December 31, 2017 and 2016, respectively, that were securitized by Bayview Financial. In April 2017, the Company provided a loan to Bayview Financial for $100 million at terms consistent with those offered to nonaffiliated customers. That loan was subsequently paid in full in June 2017. Also in June 2017, a new syndicated loan facility was entered into by Bayview Financial for $750 million, of which the Company held $88 million at December 31, 2017.