CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Net income	$ 258.1	$ 264.1	$ 444.7	$ 495.4
Foreign currency translation:
Foreign currency translation adjustments - Pre Tax	(45.9)	26.7	2.6	(51.1)
Foreign currency translation adjustment - Tax	26.5	5.4	14.0	(7.3)
Foreign currency translation adjustments - Net of Tax	(19.4)	32.1	16.6	(58.4)
Foreign currency translation adjustments - reclassification of losses included in net income - Pre Tax				(0.1)
Foreign currency translation adjustments - reclassification of losses included in net income - Net of Tax				(0.1)
Cash flow hedges:
Net realized and unrealized gain (loss) on cash flow hedges - Pre Tax	(4.6)		(2.6)
Net realized and unrealized gain (loss) on cash flow hedges - Tax Amount	1.7		0.9
Net realized and unrealized gain (loss) on cash flow hedges - Net of Tax	(2.9)		(1.7)
Reclassification of losses included in net income - Pre Tax	2.6		0.4
Reclassification of losses included in net income - Tax Amount	(0.9)		(0.1)
Reclassification of losses included in net income- Net of Tax	1.7		0.3
Available for sale securities:
Net unrealized gains on available for sale securities - Pre Tax	0.6	1.0	1.2	2.1
Net unrealized gains on available for sale securities - Net of Tax	0.6	1.0	1.2	2.1
Reclassification of gains included in net income - Pre Tax		(0.2)		(0.2)
Reclassification of gains included in net income - Net of Tax		(0.2)		(0.2)
Pension and Other Retirement Benefits:
Amortization of actuarial losses and prior service costs included in net income - Pre Tax	2.3	3.1	4.9	6.9
Amortization of actuarial losses and prior service costs included in net income - Tax	(0.9)	(1.1)	(1.9)	(2.6)
Amortization of actuarial losses and prior service costs included in net income - Net of Tax	1.4	2.0	3.0	4.3
Net actuarial losses and prior service costs - Pre Tax	5.3	10.9	5.3	10.9
Net actuarial losses and prior service costs - Tax	(2.0)	(4.2)	(2.0)	(4.2)
Net actuarial losses and prior service costs - Net of Tax	3.3	6.7	3.3	6.7
Total other comprehensive income (loss) - Pre Tax	(39.7)	41.5	11.8	(31.5)
Total other comprehensive income (loss) - Tax	24.4	0.1	10.9	(14.1)
Total other comprehensive income (loss) - Net of Tax	(15.3)	41.6	22.7	(45.6)
Comprehensive income	242.8	305.7	467.4	449.8
Less: Comprehensive income attributable to noncontrolling interests and redeemable noncontrolling interest	2.6	2.4	4.8	3.6
Comprehensive income attributable to Moody's	$ 240.2	$ 303.3	$ 462.6	$ 446.2