Employee Benefits (Details 2) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended	12 Months Ended		3 Months Ended	9 Months Ended	12 Months Ended						9 Months Ended	12 Months Ended			12 Months Ended																								9 Months Ended	12 Months Ended			12 Months Ended																																		9 Months Ended	12 Months Ended			12 Months Ended			9 Months Ended	12 Months Ended			12 Months Ended					9 Months Ended	12 Months Ended			12 Months Ended					9 Months Ended	12 Months Ended			12 Months Ended					9 Months Ended	12 Months Ended			12 Months Ended												3 Months Ended	12 Months Ended	3 Months Ended							9 Months Ended	12 Months Ended						9 Months Ended	12 Months Ended																																													9 Months Ended	12 Months Ended				9 Months Ended	12 Months Ended														9 Months Ended	12 Months Ended								3 Months Ended	12 Months Ended	3 Months Ended				9 Months Ended	12 Months Ended		3 Months Ended
	Mar. 31, 2011	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2010	Mar. 31, 2011 Predecessor	Dec. 31, 2011 Pension Plan	Dec. 31, 2012 Pension Plan	Mar. 31, 2011 Pension Plan	Dec. 31, 2012 Pension Plan Level 1	Dec. 31, 2011 Pension Plan Level 1	Dec. 31, 2012 Pension Plan Level 2	Dec. 31, 2011 Pension Plan Level 2	Dec. 31, 2011 Pension Plan Level 3	Dec. 31, 2012 Pension Plan Level 3	Dec. 31, 2011 Pension Plan Level 3	Mar. 31, 2011 Pension Plan Level 3	Dec. 31, 2011 Pension Plan Level 3 QCII	Dec. 31, 2012 Pension Plan Exchange-traded U.S. equity futures	Dec. 31, 2011 Pension Plan Exchange-traded U.S. equity futures	Dec. 31, 2012 Pension Plan Exchange-traded non-U.S. equity futures	Dec. 31, 2011 Pension Plan Exchange-traded non-U.S. equity futures	Dec. 31, 2012 Pension Plan Exchange-traded treasury futures	Dec. 31, 2011 Pension Plan Exchange-traded treasury futures	Dec. 31, 2012 Pension Plan Interest rate swaps	Dec. 31, 2011 Pension Plan Interest rate swaps	Dec. 31, 2011 Pension Plan Total return swaps	Dec. 31, 2012 Pension Plan Foreign exchange forwards	Dec. 31, 2011 Pension Plan Foreign exchange forwards	Dec. 31, 2012 Pension Plan Credit default swaps	Dec. 31, 2012 Pension Plan Options	Dec. 31, 2012 Pension Plan Investment grade bonds	Dec. 31, 2011 Pension Plan Investment grade bonds	Dec. 31, 2012 Pension Plan Investment grade bonds Level 1	Dec. 31, 2011 Pension Plan Investment grade bonds Level 1	Dec. 31, 2012 Pension Plan Investment grade bonds Level 2	Dec. 31, 2011 Pension Plan Investment grade bonds Level 2	Dec. 31, 2012 Pension Plan High Yield Bonds	Dec. 31, 2011 Pension Plan High Yield Bonds	Dec. 31, 2012 Pension Plan High Yield Bonds Level 2	Dec. 31, 2011 Pension Plan High Yield Bonds Level 2	Dec. 31, 2011 Pension Plan High Yield Bonds Level 3	Dec. 31, 2012 Pension Plan High Yield Bonds Level 3	Dec. 31, 2011 Pension Plan High Yield Bonds Level 3	Mar. 31, 2011 Pension Plan High Yield Bonds Level 3	Dec. 31, 2011 Pension Plan High Yield Bonds Level 3 QCII	Dec. 31, 2012 Pension Plan Emerging market bonds	Dec. 31, 2011 Pension Plan Emerging market bonds	Dec. 31, 2012 Pension Plan Emerging market bonds Level 1	Dec. 31, 2012 Pension Plan Emerging market bonds Level 2	Dec. 31, 2011 Pension Plan Emerging market bonds Level 2	Dec. 31, 2012 Pension Plan Convertible bonds	Dec. 31, 2011 Pension Plan Convertible bonds	Dec. 31, 2012 Pension Plan Convertible bonds Level 2	Dec. 31, 2011 Pension Plan Convertible bonds Level 2	Dec. 31, 2012 Pension Plan Diversified strategies	Dec. 31, 2011 Pension Plan Diversified strategies	Dec. 31, 2012 Pension Plan Diversified strategies Level 2	Dec. 31, 2011 Pension Plan Diversified strategies Level 2	Dec. 31, 2012 Pension Plan U.S. stocks	Dec. 31, 2011 Pension Plan U.S. stocks	Dec. 31, 2012 Pension Plan U.S. stocks Level 1	Dec. 31, 2011 Pension Plan U.S. stocks Level 1	Dec. 31, 2012 Pension Plan U.S. stocks Level 2	Dec. 31, 2011 Pension Plan U.S. stocks Level 2	Dec. 31, 2012 Pension Plan Non-U.S. stocks	Dec. 31, 2011 Pension Plan Non-U.S. stocks	Dec. 31, 2012 Pension Plan Non-U.S. stocks Level 1	Dec. 31, 2011 Pension Plan Non-U.S. stocks Level 1	Dec. 31, 2012 Pension Plan Non-U.S. stocks Level 2	Dec. 31, 2011 Pension Plan Non-U.S. stocks Level 2	Dec. 31, 2012 Pension Plan Emerging market stocks	Dec. 31, 2011 Pension Plan Emerging market stocks	Dec. 31, 2012 Pension Plan Emerging market stocks Level 1	Dec. 31, 2011 Pension Plan Emerging market stocks Level 1	Dec. 31, 2012 Pension Plan Emerging market stocks Level 2	Dec. 31, 2011 Pension Plan Emerging market stocks Level 2	Dec. 31, 2012 Pension Plan Private Equity	Dec. 31, 2011 Pension Plan Private Equity	Dec. 31, 2011 Pension Plan Private Equity Level 3	Dec. 31, 2012 Pension Plan Private Equity Level 3	Dec. 31, 2011 Pension Plan Private Equity Level 3	Mar. 31, 2011 Pension Plan Private Equity Level 3	Dec. 31, 2011 Pension Plan Private Equity Level 3 QCII	Dec. 31, 2012 Pension Plan Private Debt	Dec. 31, 2011 Pension Plan Private Debt	Dec. 31, 2011 Pension Plan Private Debt Level 3	Dec. 31, 2012 Pension Plan Private Debt Level 3	Dec. 31, 2011 Pension Plan Private Debt Level 3	Mar. 31, 2011 Pension Plan Private Debt Level 3	Dec. 31, 2011 Pension Plan Private Debt Level 3 QCII	Dec. 31, 2012 Pension Plan Market Neutral Hedge Funds	Dec. 31, 2011 Pension Plan Market Neutral Hedge Funds	Dec. 31, 2012 Pension Plan Market Neutral Hedge Funds Level 2	Dec. 31, 2011 Pension Plan Market Neutral Hedge Funds Level 2	Dec. 31, 2011 Pension Plan Market Neutral Hedge Funds Level 3	Dec. 31, 2012 Pension Plan Market Neutral Hedge Funds Level 3	Dec. 31, 2011 Pension Plan Market Neutral Hedge Funds Level 3	Mar. 31, 2011 Pension Plan Market Neutral Hedge Funds Level 3	Dec. 31, 2011 Pension Plan Market Neutral Hedge Funds Level 3 QCII	Dec. 31, 2012 Pension Plan Directional Hedge Funds	Dec. 31, 2011 Pension Plan Directional Hedge Funds	Dec. 31, 2012 Pension Plan Directional Hedge Funds Level 2	Dec. 31, 2011 Pension Plan Directional Hedge Funds Level 2	Dec. 31, 2011 Pension Plan Directional Hedge Funds Level 3	Dec. 31, 2012 Pension Plan Directional Hedge Funds Level 3	Dec. 31, 2011 Pension Plan Directional Hedge Funds Level 3	Mar. 31, 2011 Pension Plan Directional Hedge Funds Level 3	Dec. 31, 2011 Pension Plan Directional Hedge Funds Level 3 QCII	Dec. 31, 2012 Pension Plan Real estate	Dec. 31, 2011 Pension Plan Real estate	Dec. 31, 2012 Pension Plan Real estate Level 2	Dec. 31, 2011 Pension Plan Real estate Level 2	Dec. 31, 2011 Pension Plan Real estate Level 3	Dec. 31, 2012 Pension Plan Real estate Level 3	Dec. 31, 2011 Pension Plan Real estate Level 3	Mar. 31, 2011 Pension Plan Real estate Level 3	Dec. 31, 2011 Pension Plan Real estate Level 3 QCII	Dec. 31, 2012 Pension Plan Derivatives	Dec. 31, 2011 Pension Plan Derivatives	Dec. 31, 2012 Pension Plan Derivatives Level 1	Dec. 31, 2011 Pension Plan Derivatives Level 1	Dec. 31, 2012 Pension Plan Derivatives Level 2	Dec. 31, 2011 Pension Plan Derivatives Level 2	Dec. 31, 2012 Pension Plan Cash equivalents and short-term investments	Dec. 31, 2011 Pension Plan Cash equivalents and short-term investments	Dec. 31, 2011 Pension Plan Cash equivalents and short-term investments Level 1	Dec. 31, 2012 Pension Plan Cash equivalents and short-term investments Level 2	Dec. 31, 2011 Pension Plan Cash equivalents and short-term investments Level 2	Mar. 31, 2011 Pension Plan Predecessor	Dec. 31, 2010 Pension Plan Predecessor	Mar. 31, 2011 Pension Plan Predecessor Level 3	Mar. 31, 2011 Pension Plan Predecessor High Yield Bonds Level 3	Mar. 31, 2011 Pension Plan Predecessor Private Equity Level 3	Mar. 31, 2011 Pension Plan Predecessor Private Debt Level 3	Mar. 31, 2011 Pension Plan Predecessor Market Neutral Hedge Funds Level 3	Mar. 31, 2011 Pension Plan Predecessor Directional Hedge Funds Level 3	Mar. 31, 2011 Pension Plan Predecessor Real estate Level 3	Dec. 31, 2011 Post-Retirement Benefit Plan	Dec. 31, 2012 Post-Retirement Benefit Plan	Mar. 31, 2011 Post-Retirement Benefit Plan	Dec. 31, 2012 Post-Retirement Benefit Plan Level 1	Dec. 31, 2011 Post-Retirement Benefit Plan Level 1	Dec. 31, 2012 Post-Retirement Benefit Plan Level 2	Dec. 31, 2011 Post-Retirement Benefit Plan Level 2	Dec. 31, 2011 Post-Retirement Benefit Plan Level 3	Dec. 31, 2012 Post-Retirement Benefit Plan Level 3	Mar. 31, 2011 Post-Retirement Benefit Plan Level 3	Dec. 31, 2011 Post-Retirement Benefit Plan Exchange-traded U.S. equity futures	Dec. 31, 2012 Post-Retirement Benefit Plan Exchange-traded treasury futures	Dec. 31, 2011 Post-Retirement Benefit Plan Exchange-traded treasury futures	Dec. 31, 2011 Post-Retirement Benefit Plan Total return swaps	Dec. 31, 2012 Post-Retirement Benefit Plan Foreign exchange forwards	Dec. 31, 2011 Post-Retirement Benefit Plan Foreign exchange forwards	Dec. 31, 2012 Post-Retirement Benefit Plan Investment grade bonds	Dec. 31, 2011 Post-Retirement Benefit Plan Investment grade bonds	Dec. 31, 2011 Post-Retirement Benefit Plan Investment grade bonds Level 1	Dec. 31, 2012 Post-Retirement Benefit Plan Investment grade bonds Level 2	Dec. 31, 2011 Post-Retirement Benefit Plan Investment grade bonds Level 2	Dec. 31, 2012 Post-Retirement Benefit Plan High Yield Bonds	Dec. 31, 2011 Post-Retirement Benefit Plan High Yield Bonds	Dec. 31, 2012 Post-Retirement Benefit Plan High Yield Bonds Level 2	Dec. 31, 2011 Post-Retirement Benefit Plan High Yield Bonds Level 2	Dec. 31, 2012 Post-Retirement Benefit Plan Emerging market bonds	Dec. 31, 2011 Post-Retirement Benefit Plan Emerging market bonds	Dec. 31, 2012 Post-Retirement Benefit Plan Emerging market bonds Level 2	Dec. 31, 2011 Post-Retirement Benefit Plan Emerging market bonds Level 2	Dec. 31, 2012 Post-Retirement Benefit Plan Convertible bonds	Dec. 31, 2011 Post-Retirement Benefit Plan Convertible bonds	Dec. 31, 2012 Post-Retirement Benefit Plan Convertible bonds Level 2	Dec. 31, 2011 Post-Retirement Benefit Plan Convertible bonds Level 2	Dec. 31, 2012 Post-Retirement Benefit Plan Diversified strategies	Dec. 31, 2011 Post-Retirement Benefit Plan Diversified strategies	Dec. 31, 2012 Post-Retirement Benefit Plan Diversified strategies Level 2	Dec. 31, 2011 Post-Retirement Benefit Plan Diversified strategies Level 2	Dec. 31, 2012 Post-Retirement Benefit Plan U.S. stocks	Dec. 31, 2011 Post-Retirement Benefit Plan U.S. stocks	Dec. 31, 2012 Post-Retirement Benefit Plan U.S. stocks Level 1	Dec. 31, 2011 Post-Retirement Benefit Plan U.S. stocks Level 1	Dec. 31, 2012 Post-Retirement Benefit Plan Non-U.S. stocks	Dec. 31, 2011 Post-Retirement Benefit Plan Non-U.S. stocks	Dec. 31, 2012 Post-Retirement Benefit Plan Non-U.S. stocks Level 1	Dec. 31, 2011 Post-Retirement Benefit Plan Non-U.S. stocks Level 1	Dec. 31, 2012 Post-Retirement Benefit Plan Non-U.S. stocks Level 2	Dec. 31, 2011 Post-Retirement Benefit Plan Non-U.S. stocks Level 2	Dec. 31, 2012 Post-Retirement Benefit Plan Emerging market stocks	Dec. 31, 2011 Post-Retirement Benefit Plan Emerging market stocks	Dec. 31, 2012 Post-Retirement Benefit Plan Emerging market stocks Level 2	Dec. 31, 2011 Post-Retirement Benefit Plan Emerging market stocks Level 2	Dec. 31, 2012 Post-Retirement Benefit Plan Private Equity	Dec. 31, 2011 Post-Retirement Benefit Plan Private Equity	Dec. 31, 2011 Post-Retirement Benefit Plan Private Equity Level 3	Dec. 31, 2012 Post-Retirement Benefit Plan Private Equity Level 3	Mar. 31, 2011 Post-Retirement Benefit Plan Private Equity Level 3	Dec. 31, 2012 Post-Retirement Benefit Plan Private Debt	Dec. 31, 2011 Post-Retirement Benefit Plan Private Debt	Dec. 31, 2011 Post-Retirement Benefit Plan Private Debt Level 3	Dec. 31, 2012 Post-Retirement Benefit Plan Private Debt Level 3	Mar. 31, 2011 Post-Retirement Benefit Plan Private Debt Level 3	Dec. 31, 2012 Post-Retirement Benefit Plan Market Neutral Hedge Funds	Dec. 31, 2011 Post-Retirement Benefit Plan Market Neutral Hedge Funds	Dec. 31, 2012 Post-Retirement Benefit Plan Market Neutral Hedge Funds Level 2	Dec. 31, 2011 Post-Retirement Benefit Plan Market Neutral Hedge Funds Level 2	Dec. 31, 2012 Post-Retirement Benefit Plan Directional Hedge Funds	Dec. 31, 2011 Post-Retirement Benefit Plan Directional Hedge Funds	Dec. 31, 2012 Post-Retirement Benefit Plan Directional Hedge Funds Level 2	Dec. 31, 2011 Post-Retirement Benefit Plan Directional Hedge Funds Level 2	Dec. 31, 2012 Post-Retirement Benefit Plan Real estate	Dec. 31, 2011 Post-Retirement Benefit Plan Real estate	Dec. 31, 2012 Post-Retirement Benefit Plan Real estate Level 2	Dec. 31, 2011 Post-Retirement Benefit Plan Real estate Level 2	Dec. 31, 2011 Post-Retirement Benefit Plan Real estate Level 3	Dec. 31, 2012 Post-Retirement Benefit Plan Real estate Level 3	Mar. 31, 2011 Post-Retirement Benefit Plan Real estate Level 3	Dec. 31, 2012 Post-Retirement Benefit Plan Cash equivalents and short-term investments	Dec. 31, 2011 Post-Retirement Benefit Plan Cash equivalents and short-term investments	Dec. 31, 2012 Post-Retirement Benefit Plan Cash equivalents and short-term investments Level 1	Dec. 31, 2011 Post-Retirement Benefit Plan Cash equivalents and short-term investments Level 1	Dec. 31, 2012 Post-Retirement Benefit Plan Cash equivalents and short-term investments Level 2	Dec. 31, 2011 Post-Retirement Benefit Plan Cash equivalents and short-term investments Level 2	Mar. 31, 2011 Post-Retirement Benefit Plan Predecessor	Dec. 31, 2010 Post-Retirement Benefit Plan Predecessor	Mar. 31, 2011 Post-Retirement Benefit Plan Predecessor Level 3	Mar. 31, 2011 Post-Retirement Benefit Plan Predecessor Private Equity Level 3	Mar. 31, 2011 Post-Retirement Benefit Plan Predecessor Private Debt Level 3	Mar. 31, 2011 Post-Retirement Benefit Plan Predecessor Real estate Level 3	Dec. 31, 2011 Non-Qualified Pension Plan	Dec. 31, 2012 Non-Qualified Pension Plan	Mar. 31, 2011 Non-Qualified Pension Plan	Mar. 31, 2011 Non-Qualified Pension Plan Predecessor	Dec. 31, 2010 Non-Qualified Pension Plan Predecessor
Employee Benefits
Gross notional exposure																		$ 204	$ 535	$ 1	$ 4	$ 1,190	$ 1,512	$ 993	$ 435	$ 110	$ 490	$ 379	$ 334	$ 519																																																																																																																						$ 12	$ 30	$ 19	$ 51	$ 21	$ 23
Total investments						8,183	8,339		2,417	1,705	4,729	4,611	1,867	1,193	1,867																1,611	1,450	561	694	1,050	756	921	608	881	530		40				403	189	134	269	189	253	335	253	335	443	489	443	489	909	309	828	224	81	85	939	739	819	697	120	42	209	201	78	65	131	136	480	791	791	480	791			314	448		314				612	808	612	620						361	296	230	268		131				378	382	150	48	334	228	334			(1)	7	(3)	12	2	(5)	507	1,131	13	507	1,118										655	583		93	135	413	426	94	77								85	107	12	85	95	89	61	89	61	40	33	40	33	2	30	2	30	71	62	71	62	40	64	40	64	52	60	51	58	1	2	20	17	20	17	44	60		44		5	8		5		41	67	41	67	24	20	24	20	48	45	20	19		28		22	21	2	1	20	20
Dividends and interest receivable						21																																																																																																																																				3
Pending trades receivable						388																																																																																																																																				23
Accrued expenses						(8)	(9)																																																																																																																																			(15)	(1)
Pending trades payable						(540)																																																																																																																																				(23)
Reimbursement accrual																																																																																																																																											(10)
Total plan assets						8,044	8,330	7,777					1,867	1,193	1,867	2,049																									78	40	78	116																																			791	480	791	886				448	314	448	501						188		188	185						28	131	28	32						334	228	334	329													7,641	7,660	2,049	116	886	501	185	32	329	643	572	762					94	77	110																																												60	44	76			8	5	10													26	28	24							767	801	110	76	10	24
Maturity term of long-term commitments made in investments in limited partnerships			10 years
Changes in the fair value of plan assets during the period
Fair value of plan assets at the beginning of the period							8,044	7,777						1,867		2,049																										78		116																																				791		886					448		501							188		185							28		32							334		329													7,660	7,326	1,894	114	831	530	102	29	288		643	762						94	110																																													60	76				8	10														26	24							801	863	113	77	11	25
Net transfers														(206)																												(8)																																																						(127)																		(71)
Net (dispositions) acquisitions													(174)	(91)																											(21)	(6)																																					(90)	(27)						(60)	11																	(2)									(1)	(69)																	45	(5)	(20)	(32)	80		22								(23)	18																																													(21)	(14)				(2)	(3)															(1)										(4)	(3)		(1)
Actual return on plan assets:
Realized gains (losses) relating to assets sold during the period													211	3																											(12)																																						197	2						15	1								3									(1)									9																		63	(2)	62	(1)			4								34	5																																													33	4				1	2															(1)										9	8		1
Unrealized losses relating to assets still held at period-end													(219)	(25)																											(5)	1																																					(202)	(30)						(8)	(10)																	(1)	7								(3)	7																	47	9	13	4	3	3	15								(27)	(4)																																													(28)	(6)				(1)	(2)														2	4										(8)	(6)	(1)	(1)
Fair value of plan assets at the end of the period						8,044	8,330	7,777					1,867	1,193	1,867	2,049																									78	40	78	116																																			791	480	791	886				448	314	448	501						188		188	185						28	131	28	32						334	228	334	329													7,641	7,660	2,049	116	886	501	185	32	329	643	572	762					94	77	110																																												60	44	76			8	5	10													26	28	24							767	801	110	76	10	24
Transfer to Defined Benefit Master Trust															(1,867)		1,512																										(78)		53																																				(791)		535					(448)		312							(188)		127							(28)		124							(334)		361
Actual gains on pension and post retirement plan assets		443	1,079		294	449	1,006																																																																																																																										133	1,094								11	73																																																																																	13	124
Expected return		454	617		146	416	576																																																																																																																										133	556								38	41																																																																																	13	61
Difference between the actual and expected returns on pension and post-retirement plan assets		11	462		148
Unfunded Status
Benefit obligation						(8,671)	(9,278)	(8,237)																																																																																																																									(8,211)	(8,245)								(3,348)	(3,438)	(3,284)																																																																																(3,288)	(3,323)					(23)	(22)	(31)	(31)	(31)
Fair value of plan assets						8,044	8,330	7,777					1,867	1,193	1,867	2,049																									78	40	78	116																																			791	480	791	886				448	314	448	501						188		188	185						28	131	28	32						334	228	334	329													7,641	7,660	2,049	116	886	501	185	32	329	643	572	762					94	77	110																																												60	44	76			8	5	10													26	28	24							767	801	110	76	10	24
Unfunded status						(627)	(948)																																																																																																																																			(2,706)	(2,866)																																																																																							(23)	(22)
Current portion of unfunded status																																																																																																																																										(155)	(134)																																																																																							(4)	(3)
Non-current portion of unfunded status						(627)	(948)																																																																																																																																			(2,551)	(2,732)																																																																																							(19)	(19)
Obligations for the current portion of executive life insurance plans, post-employment perquisites, post-employment disability insurance and workers' compensation benefit obligations		16	16
Obligations for the non-current portion of executive life insurance plans, post-employment perquisites, post-employment disability insurance and workers' compensation benefit obligations		143	149
Accumulated other comprehensive (loss) income at the beginning of the period
Net actuarial (loss) gain						(533)	(985)																																																																																																																										(1,665)	(1,695)								(163)	(316)																																																																																	(534)	(544)					(2)	(3)		(8)	(8)
Prior service benefit (cost)																																																																																																																																	158	163								(27)	(26)																																																																																	864	890
Deferred income tax benefit (expense)						205	379																																																																																																																										669	676								73	132																																																																																	164	158					1	1			1
Total	(352)	(446)	(818)	(359)		(328)	(606)	(838)																																																																																																																										(856)								(117)	(210)	(494)																																																																																494	504					(1)	(2)	(8)		(7)
Recognition of Net Periodic Benefits Expense
Net actuarial (loss) gain																																																																																																																																	(31)	(130)																																																																																										(10)	(40)					(1)
Prior service benefit (cost)																																																																																																																																	(6)	(22)									1																																																																																	(26)	(99)
Deferred income tax benefit (expense)																																																																																																																																	(7)																																																																																											6									(1)
Net periodic (income) expense	7	1	1																																																																																																																														18										(1)																																																																																	(10)						1			(1)
Deferrals
Net actuarial (loss) gain						(533)	(452)																																																																																																																																			(163)	(153)																																																																																							(3)	(1)
Prior service benefit (cost)																																																																																																																																										27
Deferred income tax benefit (expense)						205	174																																																																																																																																			73	59																																																																																							1
Total		(447)	(373)			(328)	(278)																																																																																																																																			(117)	(94)																																																																																							(2)	(1)
Net Change in AOCI
Net actuarial (loss) gain						(533)	(452)																																																																																																																										30									(163)	(153)																																																																																	10						(2)	(1)
Prior service (cost) benefit																																																																																																																																	(5)									(27)	1																																																																																	(26)
Deferred income tax benefit (expense)						205	174																																																																																																																										(7)									73	59																																																																																	6						1			(1)
Total	7	(446)	(372)			(328)	(278)																																																																																																																										18									(117)	(93)																																																																																	(10)						(1)	(1)		(1)
Accumulated other comprehensive (loss) income at the end of the period
Net actuarial (loss) gain						(533)	(985)																																																																																																																										(1,665)	(1,695)								(163)	(316)																																																																																	(534)	(544)					(2)	(3)		(8)	(8)
Prior service benefit (cost)																																																																																																																																	158	163								(27)	(26)																																																																																	864	890
Deferred income tax benefit (expense)						205	379																																																																																																																										669	676								73	132																																																																																	164	158					1	1			1
Total	(352)	(446)	(818)	(359)		(328)	(606)	(838)																																																																																																																										(856)								(117)	(210)	(494)																																																																																494	504					(1)	(2)	(8)		(7)
Estimated recognition of net periodic benefit expense in 2013:
Net actuarial loss							(7)																																																																																																																																				(3)
Prior service benefit (cost)																																																																																																																																											(1)
Deferred income tax benefit							3																																																																																																																																				2
Total							$ (4)																																																																																																																																				$ (2)