Debt (Details) (Bridge Credit Agreement [Member], USD $)	9 Months Ended		9 Months Ended	0 Months Ended
	Sep. 30, 2014	Sep. 14, 2014	Sep. 30, 2014 LIBOR [Member]	Nov. 06, 2014 Subsequent Event [Member]
Short-term Debt [Line Items]
Maximum borrowing capacity		$ 1,000,000,000
Initial commitment fee		$ 1,500,000
Ticking fee on daily undrawn balance, percent				0.075%
Term of agreement, days after closing of TriZetto acquisition	364 days
Basis spread on variable rate			0.875%
Basis spread on variable rate, increase per quarter			0.25%
Minimum consolidated interest coverage ratio required under covenant	3.50