Fair Value - Partnership's Financial Liabilities at Fair Value (Detail) (USD $) In Millions, unless otherwise specified	Mar. 28, 2014	Dec. 31, 2013
Securities sold, not yet purchased:
Total securities sold, not yet purchased	$ 4	$ 4
Other [Member]
Securities sold, not yet purchased:
Total securities sold, not yet purchased	1	1
Corporate bonds and notes [Member]
Securities sold, not yet purchased:
Total securities sold, not yet purchased	2	2
Equities [Member]
Securities sold, not yet purchased:
Total securities sold, not yet purchased	1	1
Level I [Member]
Securities sold, not yet purchased:
Total securities sold, not yet purchased	1	1
Level I [Member] | Other [Member]
Securities sold, not yet purchased:
Total securities sold, not yet purchased	0	0
Level I [Member] | Corporate bonds and notes [Member]
Securities sold, not yet purchased:
Total securities sold, not yet purchased	0	0
Level I [Member] | Equities [Member]
Securities sold, not yet purchased:
Total securities sold, not yet purchased	1	1
Level II [Member]
Securities sold, not yet purchased:
Total securities sold, not yet purchased	3	3
Level II [Member] | Other [Member]
Securities sold, not yet purchased:
Total securities sold, not yet purchased	1	1
Level II [Member] | Corporate bonds and notes [Member]
Securities sold, not yet purchased:
Total securities sold, not yet purchased	2	2
Level II [Member] | Equities [Member]
Securities sold, not yet purchased:
Total securities sold, not yet purchased	0	0
Level III [Member]
Securities sold, not yet purchased:
Total securities sold, not yet purchased	0	0
Level III [Member] | Other [Member]
Securities sold, not yet purchased:
Total securities sold, not yet purchased	0	0
Level III [Member] | Corporate bonds and notes [Member]
Securities sold, not yet purchased:
Total securities sold, not yet purchased	0	0
Level III [Member] | Equities [Member]
Securities sold, not yet purchased:
Total securities sold, not yet purchased	$ 0	$ 0