Variable Interest Entities (Asset & Liability Balances) (Details) - USD ($) $ in Millions		Jun. 30, 2016		Dec. 31, 2015
Consolidated investment entities [Member]
Assets and liabilities measured at fair value
CLO debt valued using DCF model		$ 2,673
Assets
Other assets		1		$ 2,065
Liabilities
Debt		2,749	[1]	6,630
Other liabilities		88		221
Investment in non-consolidated CLOs [Member] | Nonconsolidated VIEs [Member]
Assets and liabilities measured at fair value
Carrying value of nonconsolidated VIEs		10
Property Funds [Member] | Nonconsolidated VIEs [Member]
Assets and liabilities measured at fair value
Carrying value of nonconsolidated VIEs		30
Sponsored hedge funds and private equity funds [Member] | Nonconsolidated VIEs [Member]
Assets and liabilities measured at fair value
Carrying value of nonconsolidated VIEs		27		29
International series funds [Member] | Nonconsolidated VIEs [Member]
Assets and liabilities measured at fair value
Carrying value of nonconsolidated VIEs		28
Affordable housing partnerships [Member] | Nonconsolidated VIEs [Member]
Assets and liabilities measured at fair value
Carrying value of nonconsolidated VIEs		514		517
Recurring basis [Member] | Consolidated investment entities [Member]
Assets
Investments		2,605		6,570
Receivables		19		70
Other assets		1		2,065
Total assets at fair value		2,625		8,705
Liabilities
Debt		2,749	[2]	6,630
Other liabilities		88		221
Total liabilities at fair value		2,837		6,851
Recurring basis [Member] | Corporate debt securities [Member] | Consolidated investment entities [Member]
Assets
Investments		56		154
Recurring basis [Member] | Common stocks [Member] | Consolidated investment entities [Member]
Assets
Investments		18		123
Recurring basis [Member] | Other investments [Member] | Consolidated investment entities [Member]
Assets
Investments		8		26
Recurring basis [Member] | Syndicated loans [Member] | Consolidated investment entities [Member]
Assets
Investments		2,523		6,267
Recurring basis [Member] | Level 1 [Member] | Consolidated investment entities [Member]
Assets
Investments		5		78
Total assets at fair value		5		78
Recurring basis [Member] | Level 1 [Member] | Common stocks [Member] | Consolidated investment entities [Member]
Assets
Investments		1		74
Recurring basis [Member] | Level 1 [Member] | Other investments [Member] | Consolidated investment entities [Member]
Assets
Investments		4		4
Recurring basis [Member] | Level 2 [Member] | Consolidated investment entities [Member]
Assets
Investments		2,356		5,960
Receivables		19		70
Total assets at fair value		2,375		6,030
Liabilities
Debt	[2]	2,749
Other liabilities		88		221
Total liabilities at fair value		2,837		221
Recurring basis [Member] | Level 2 [Member] | Corporate debt securities [Member] | Consolidated investment entities [Member]
Assets
Investments		56		154
Recurring basis [Member] | Level 2 [Member] | Common stocks [Member] | Consolidated investment entities [Member]
Assets
Investments		16		46
Recurring basis [Member] | Level 2 [Member] | Other investments [Member] | Consolidated investment entities [Member]
Assets
Investments		4		22
Recurring basis [Member] | Level 2 [Member] | Syndicated loans [Member] | Consolidated investment entities [Member]
Assets
Investments		2,280		5,738
Recurring basis [Member] | Level 3 [Member] | Consolidated investment entities [Member]
Assets
Investments		244		532
Other assets		1		2,065
Total assets at fair value		245		2,597
Liabilities
Total liabilities at fair value				6,630
Recurring basis [Member] | Level 3 [Member] | Common stocks [Member] | Consolidated investment entities [Member]
Assets
Investments		1		3
Recurring basis [Member] | Level 3 [Member] | Syndicated loans [Member] | Consolidated investment entities [Member]
Assets
Investments		$ 243		$ 529

[1] As the Company elected the measurement alternative effective January 1, 2016, the carrying value of the CLOs’ debt is set equal to the fair value of the CLOs’ assets. See Note 2 and above for additional discussion on the measurement alternative. The estimated fair value of the CLOs’ debt was $2.7 billion at June 30, 2016.

[2] As the Company elected the measurement alternative effective January 1, 2016, the carrying value of the CLOs’ debt is set equal to the fair value of the CLOs’ assets. See Note 2 and below for additional discussion on the measurement alternative. The estimated fair value of the CLOs’ debt was $2.7 billion at June 30, 2016.