Consolidated Statements of Financial Position (Parenthetical) (USD $) In Millions, except Share data, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012	Dec. 31, 2011	Jan. 02, 2015
Fixed maturities, available for sale, amortized cost	$ 265,116		$ 268,727
Fixed maturities, held to maturity, fair value	2,902	[1]	3,553
Available For Sale Equity Securities Amortized Cost Basis	6,921		7,003
Preferred Stock, par value	$ 0.01		$ 0.01
Preferred Stock, shares authorized	10,000,000		10,000,000
Other Long Term Investments	10,921	[2]	10,328	[2]
Total Commercial Mortgage And Other Loans	46,432	[2],[3]	41,008	[2],[3]
Notes Of Consolidated Variable Interest Entities	6,058	[2]	3,302	[2]
Common Stock [Member]
Common Stock, par value	$ 0.01		$ 0.01
Common Stock, shares authorized	1,500,000,000		1,500,000,000
Common Stock, shares issued	660,111,339		660,111,319
Common Stock held in treasury, shares	205,277,862		199,056,067
Common Class B Stock [Member]
Common Stock, par value	$ 0.01		$ 0.01
Common Stock, shares authorized	10,000,000		10,000,000
Common Stock, shares issued	2,000,000		2,000,000
Common Stock, shares outstanding			2,000,000		2,000,000	2,000,000
Fair Value Option [Member]
Other Long Term Investments	1,082		873
Total Commercial Mortgage And Other Loans	380		158
Notes Of Consolidated Variable Interest Entities	$ 6,033		$ 3,254
Class B Stock Held in Treasury [Member]
Common Stock held in treasury, shares	2,000,000		0				2,000,000

[1]          Excludes notes with amortized cost of $3,588 million (fair value, $3,953 million) which have been offset with the associated payables under a netting agreement.

[2] (1) See Note 5 for details of balances associated with variable interest entities.

[3] Includes loans held at fair value.