SHARE-BASED AND OTHER COMPENSATION PROGRAMS - Employee Option Plans (Details) $ in Millions			12 Months Ended
	Mar. 16, 2016 USD ($) shares	Mar. 16, 2012 shares	Dec. 31, 2017 USD ($) shares	Dec. 31, 2017 € / shares	Dec. 31, 2016 USD ($) shares	Dec. 31, 2015 USD ($) shares
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Share based compensation expense | $			$ 215		$ 187	$ 211
Parent
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Post-vesting holding period			5 years
AXA Shareplan Option A 2017 | Parent
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Discount from market price, purchase date			20.00%
Weighted average purchase price of shares purchased (Euro/share) | € / shares				€ 20.19
AXA Shareplan Option B 2015 | Parent
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Discount from market price, purchase date			8.98%
Weighted average purchase price of shares purchased (Euro/share) | € / shares				€ 22.96
Ordinary share price measurement period (52 weeks)			364 days
Shares issued during period under employee stock ownership plan			4,000,000		6,000,000	5,000,000
AXA Miles Program 2012 | AXA Financial
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Maximum number of shares per employee (shares)		50
Vesting period		4 years
Stock options exercised (in shares) | $	$ 4
Units issued upon exercise of options (in shares)	200,000
AXA Miles Program 2012 | AXA Financial | Four Year Cliff Vesting Term
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Maximum number of shares per employee (shares)		25
AXA Shareplan
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Share based compensation expense | $			$ 9		$ 14	$ 16