Condensed Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Net income	$ 1,375.4	$ 1,214.8
Foreign currency translation adjustments:
Gain (loss) recognized in accumulated other comprehensive income (AOCI), including net investment hedges	25.7	287.6
Reclassification of (gain) loss to net income	0.0	109.0
Foreign currency translation adjustments-net of tax benefit (expense) of $72.3 and $44.5	25.7	396.6
Cash flow hedges:
Gain (loss) recognized in AOCI	(7.5)	(7.1)
Reclassification of (gain) loss to net income	12.0	(3.9)
Cash flow hedges-net of tax benefit (expense) of $(1.2) and $6.2.	4.5	(11.0)
Defined benefit pension plans:
Gain (loss) recognized in AOCI	(1.1)	(0.3)
Reclassification of (gain) loss to net income	2.8	2.6
Defined benefit pension plans-net of tax benefit (expense) $(0.9) and $(0.5).	1.7	2.3
Total other comprehensive income (loss), net of tax	31.9	387.9
Comprehensive income (loss)	$ 1,407.3	$ 1,602.7