PUTNAM INTERNATIONAL EQUITY FUND /MA/ S000006181 [Member] MSCI All Country World Ex-U.S. Index-NR (reflects no deduction for fees, expenses or taxes but are net of dividend tax withholdings) MSCI All Country World Ex U S Index NR [Member] MSCI EAFE Index-NR (index reflects no deduction for fees, expenses or taxes but are net of dividend tax withholding) MSCI EAFE Index NR [Member] Class T Shares C000180122 [Member] Class A Shares C000017024 [Member] Class B Shares C000017025 [Member] Class C Shares C000017026 [Member] Class M Shares C000017027 [Member] Class R Shares C000017028 [Member] Class Y Shares C000017029 [Member] Class R5 C000118015 [Member] Class R6 C000118016 [Member] Market risks [Member] Foreign investments risk [Member] Geographic focus risk [Member] Common stock risk [Member] Large shareholder transaction risk [Member] Cybersecurity risk [Member] Management and operational risk [Member] Derivatives risks [Member]