Notes and Debentures (Tables)

12 Months Ended

Dec. 31, 2019

Debt Disclosure [Abstract]

Schedule of Subordinated Borrowing

Notes and debentures are summarized as follows:

As of December 31 (in millions)	2019		2018
People’s United Financial, Inc.:
3.65% senior notes due 2022	$	498.3	$	497.7
5.75% subordinated notes due 2024	81.6		—
People’s United Bank:
4.00% subordinated notes due 2024	413.2		398.1
Total notes and debentures	$	993.1	$	895.8