SHARE-BASED AND OTHER COMPENSATION PROGRAMS - Fair Value Stock Option Assumptions (Details)				12 Months Ended
	Jun. 21, 2017 € / shares	Jun. 06, 2016 € / shares	Jun. 19, 2015 € / shares	Dec. 31, 2017 $ / shares shares	Dec. 31, 2016 $ / shares	Dec. 31, 2015 $ / shares
Parent | Stock Option Plan 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield	6.53%
Expected volatility	25.05%
Risk-free interest rates	0.59%
Expected life in years	8 years 9 months 18 days
Weighted average fair value per option at grant date (in dollars per share)	€ 1.78
Parent | Stock Option Plan 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield		6.49%
Expected volatility		26.60%
Risk-free interest rates		0.33%
Expected life in years		8 years 1 month 6 days
Weighted average fair value per option at grant date (in dollars per share)		€ 1.85
Parent | Stock Option Plan 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield			6.29%
Expected volatility			23.68%
Risk-free interest rates			0.92%
Expected life in years			8 years 2 months 12 days
Weighted average fair value per option at grant date (in dollars per share)			€ 1.58
Parent | AXA Ordinary Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield				6.53%	6.49%	6.29%
Expected volatility				25.05%	26.60%	23.68%
Risk-free interest rates				0.59%	0.33%	0.92%
Expected life in years				8 years 9 months 29 days	8 years 1 month 6 days	8 years 2 months 12 days
Weighted average fair value per option at grant date (in dollars per share) | $ / shares				$ 2.01	$ 2.06	$ 1.73
Parent | AB Holding Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield					7.10%	7.10%
Expected volatility					31.00%	32.10%
Risk-free interest rates					1.30%	1.50%
Expected life in years					6 years	6 years
Weighted average fair value per option at grant date (in dollars per share) | $ / shares					$ 2.75	$ 4.13
Alliance Bernstein
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant of holding units (in shares) | shares				0