Variable Interest Entities (Asset & Liability Balances) (Details) - USD ($) $ in Millions		Sep. 30, 2016		Dec. 31, 2015
Nonconsolidated VIEs [Member] | Investment in non-consolidated CLOs [Member]
Assets and liabilities measured at fair value
Carrying value of nonconsolidated VIEs		$ 10
Nonconsolidated VIEs [Member] | Property Funds [Member]
Assets and liabilities measured at fair value
Carrying value of nonconsolidated VIEs		28
Nonconsolidated VIEs [Member] | Sponsored hedge funds and private equity funds [Member]
Assets and liabilities measured at fair value
Carrying value of nonconsolidated VIEs		13		$ 29
Nonconsolidated VIEs [Member] | International series funds [Member]
Assets and liabilities measured at fair value
Carrying value of nonconsolidated VIEs		39
Nonconsolidated VIEs [Member] | Affordable housing partnerships [Member]
Assets and liabilities measured at fair value
Carrying value of nonconsolidated VIEs		544		517
Nonconsolidated VIEs [Member] | Real estate development partnerships [Member]
Assets and liabilities measured at fair value
Carrying value of nonconsolidated VIEs		10
Consolidated investment entities [Member]
Assets and liabilities measured at fair value
CLO debt valued using DCF model		2,600
Assets
Other assets		1		2,065
Liabilities
Debt		2,710	[1]	6,630
Other liabilities		112		221
Recurring basis [Member] | Consolidated investment entities [Member]
Assets
Investments		2,573		6,570
Receivables		14		70
Other assets		1		2,065
Total assets at fair value		2,588		8,705
Liabilities
Debt		2,710	[2]	6,630
Other liabilities		112		221
Total liabilities at fair value		2,822		6,851
Recurring basis [Member] | Consolidated investment entities [Member] | Corporate debt securities [Member]
Assets
Investments		59		154
Recurring basis [Member] | Consolidated investment entities [Member] | Common stocks [Member]
Assets
Investments		21		123
Recurring basis [Member] | Consolidated investment entities [Member] | Other investments [Member]
Assets
Investments		8		26
Recurring basis [Member] | Consolidated investment entities [Member] | Syndicated loans [Member]
Assets
Investments		2,485		6,267
Recurring basis [Member] | Consolidated investment entities [Member] | Level 1 [Member]
Assets
Investments		6		78
Total assets at fair value		6		78
Recurring basis [Member] | Consolidated investment entities [Member] | Level 1 [Member] | Common stocks [Member]
Assets
Investments		1		74
Recurring basis [Member] | Consolidated investment entities [Member] | Level 1 [Member] | Other investments [Member]
Assets
Investments		5		4
Recurring basis [Member] | Consolidated investment entities [Member] | Level 2 [Member]
Assets
Investments		2,368		5,960
Receivables		14		70
Total assets at fair value		2,382		6,030
Liabilities
Debt	[2]	2,710
Other liabilities		112		221
Total liabilities at fair value		2,822		221
Recurring basis [Member] | Consolidated investment entities [Member] | Level 2 [Member] | Corporate debt securities [Member]
Assets
Investments		59		154
Recurring basis [Member] | Consolidated investment entities [Member] | Level 2 [Member] | Common stocks [Member]
Assets
Investments		17		46
Recurring basis [Member] | Consolidated investment entities [Member] | Level 2 [Member] | Other investments [Member]
Assets
Investments		3		22
Recurring basis [Member] | Consolidated investment entities [Member] | Level 2 [Member] | Syndicated loans [Member]
Assets
Investments		2,289		5,738
Recurring basis [Member] | Consolidated investment entities [Member] | Level 3 [Member]
Assets
Investments		199		532
Other assets		1		2,065
Total assets at fair value		200		2,597
Liabilities
Total liabilities at fair value				6,630
Recurring basis [Member] | Consolidated investment entities [Member] | Level 3 [Member] | Common stocks [Member]
Assets
Investments		3		3
Recurring basis [Member] | Consolidated investment entities [Member] | Level 3 [Member] | Syndicated loans [Member]
Assets
Investments		$ 196		$ 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 $2.6 billion at September 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 $2.6 billion at September 30, 2016.