Restructuring Charges- by Business Segment (Detail) (Operational Efficiency Initiatives 2011, USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended	27 Months Ended	30 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Dec. 31, 2011	Dec. 31, 2013	Mar. 31, 2014
Restructuring Cost and Reserve [Line Items]
Net additional charges (net recovery/gain)	$ 0	$ 23	$ 107	$ 43
Total charges since inception					150
Investment Management
Restructuring Cost and Reserve [Line Items]
Net additional charges (net recovery/gain)	0	6
Total charges since inception					52
Investment Services
Restructuring Cost and Reserve [Line Items]
Net additional charges (net recovery/gain)	0	5
Total charges since inception					85
Other
Restructuring Cost and Reserve [Line Items]
Net additional charges (net recovery/gain)	0	12
Total charges since inception					$ 13