Retirement Plan 2 (Details) (USD $)	12 Months Ended			12 Months Ended																																																																																																																																				12 Months Ended				12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012	Dec. 31, 2011 Private Equity Funds Member	Dec. 31, 2011 Real Estate Member	Dec. 31, 2011 Mortgage Backed Securities Other [Member]	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member	Dec. 31, 2009 United States Pension Plans Of US Entity Defined Benefit Member	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Equity Securities [Member]	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Equity Securities [Member]	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Debt Securities [Member]	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Debt Securities [Member]	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Corporate Debt Securities [Member]	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Corporate Debt Securities [Member]	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Derivative [Member]	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Derivative [Member]	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Asset Backed Securities [Member]	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Asset Backed Securities [Member]	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Private Equity Funds Member	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Private Equity Funds Member	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Real Estate Member	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Real Estate Member	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Mortgage Backed Securities Other [Member]	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Mortgage Backed Securities Other [Member]	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Money Market Funds [Member]	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Money Market Funds [Member]	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Securities Lending Fund [Member]	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Securities Lending Fund [Member]	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Fixed Income Investments [Member]	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 1 Member	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 1 Member	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 1 Member Equity Securities [Member]	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 1 Member Equity Securities [Member]	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 1 Member Debt Securities [Member]	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 1 Member Debt Securities [Member]	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 1 Member Corporate Debt Securities [Member]	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 1 Member Corporate Debt Securities [Member]	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 1 Member Derivative [Member]	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 1 Member Derivative [Member]	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 1 Member Asset Backed Securities [Member]	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 1 Member Asset Backed Securities [Member]	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 1 Member Private Equity Funds Member	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 1 Member Private Equity Funds Member	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 1 Member Real Estate Member	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 1 Member Real Estate Member	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 1 Member Mortgage Backed Securities Other [Member]	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 1 Member Mortgage Backed Securities Other [Member]	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 1 Member Money Market Funds [Member]	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 1 Member Money Market Funds [Member]	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 1 Member Securities Lending Fund [Member]	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 1 Member Securities Lending Fund [Member]	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 2 Member	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 2 Member	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 2 Member Equity Securities [Member]	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 2 Member Equity Securities [Member]	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 2 Member Debt Securities [Member]	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 2 Member Debt Securities [Member]	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 2 Member Corporate Debt Securities [Member]	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 2 Member Corporate Debt Securities [Member]	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 2 Member Derivative [Member]	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 2 Member Derivative [Member]	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 2 Member Asset Backed Securities [Member]	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 2 Member Asset Backed Securities [Member]	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 2 Member Private Equity Funds Member	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 2 Member Private Equity Funds Member	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 2 Member Real Estate Member	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 2 Member Real Estate Member	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 2 Member Mortgage Backed Securities Other [Member]	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 2 Member Mortgage Backed Securities Other [Member]	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 2 Member Money Market Funds [Member]	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 2 Member Money Market Funds [Member]	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 2 Member Securities Lending Fund [Member]	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 2 Member Securities Lending Fund [Member]	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 2 Member Fixed Income Investments [Member]	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 3 Member	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 3 Member	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 3 Member Equity Securities [Member]	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 3 Member Equity Securities [Member]	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 3 Member Debt Securities [Member]	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 3 Member Debt Securities [Member]	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 3 Member Corporate Debt Securities [Member]	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 3 Member Corporate Debt Securities [Member]	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 3 Member Derivative [Member]	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 3 Member Derivative [Member]	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 3 Member Asset Backed Securities [Member]	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 3 Member Asset Backed Securities [Member]	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 3 Member Private Equity Funds Member	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 3 Member Private Equity Funds Member	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 3 Member Real Estate Member	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 3 Member Real Estate Member	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 3 Member Mortgage Backed Securities Other [Member]	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 3 Member Mortgage Backed Securities Other [Member]	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 3 Member Money Market Funds [Member]	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 3 Member Money Market Funds [Member]	Dec. 31, 2011 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 3 Member Securities Lending Fund [Member]	Dec. 31, 2010 United States Pension Plans Of US Entity Defined Benefit Member Fair Value Inputs Level 3 Member Securities Lending Fund [Member]	Dec. 31, 2012 Foreign Pension Plans, Defined Benefit [Member]	Dec. 31, 2011 Foreign Pension Plans, Defined Benefit [Member]	Dec. 31, 2010 Foreign Pension Plans, Defined Benefit [Member]	Dec. 31, 2009 Foreign Pension Plans, Defined Benefit [Member]	Dec. 31, 2011 Foreign Pension Plans, Defined Benefit [Member] Equity Securities [Member]	Dec. 31, 2010 Foreign Pension Plans, Defined Benefit [Member] Equity Securities [Member]	Dec. 31, 2011 Foreign Pension Plans, Defined Benefit [Member] Debt Securities [Member]	Dec. 31, 2010 Foreign Pension Plans, Defined Benefit [Member] Debt Securities [Member]	Dec. 31, 2011 Foreign Pension Plans, Defined Benefit [Member] Corporate Debt Securities [Member]	Dec. 31, 2010 Foreign Pension Plans, Defined Benefit [Member] Corporate Debt Securities [Member]	Dec. 31, 2011 Foreign Pension Plans, Defined Benefit [Member] Derivative [Member]	Dec. 31, 2010 Foreign Pension Plans, Defined Benefit [Member] Derivative [Member]	Dec. 31, 2011 Foreign Pension Plans, Defined Benefit [Member] Money Market Funds [Member]	Dec. 31, 2011 Foreign Pension Plans, Defined Benefit [Member] Fixed Income Investments [Member]	Dec. 31, 2010 Foreign Pension Plans, Defined Benefit [Member] Fixed Income Investments [Member]	Dec. 31, 2011 Foreign Pension Plans, Defined Benefit [Member] Fair Value Inputs Level 1 Member	Dec. 31, 2010 Foreign Pension Plans, Defined Benefit [Member] Fair Value Inputs Level 1 Member	Dec. 31, 2011 Foreign Pension Plans, Defined Benefit [Member] Fair Value Inputs Level 1 Member Equity Securities [Member]	Dec. 31, 2010 Foreign Pension Plans, Defined Benefit [Member] Fair Value Inputs Level 1 Member Equity Securities [Member]	Dec. 31, 2011 Foreign Pension Plans, Defined Benefit [Member] Fair Value Inputs Level 1 Member Debt Securities [Member]	Dec. 31, 2010 Foreign Pension Plans, Defined Benefit [Member] Fair Value Inputs Level 1 Member Debt Securities [Member]	Dec. 31, 2010 Foreign Pension Plans, Defined Benefit [Member] Fair Value Inputs Level 1 Member Corporate Debt Securities [Member]	Dec. 31, 2010 Foreign Pension Plans, Defined Benefit [Member] Fair Value Inputs Level 1 Member Derivative [Member]	Dec. 31, 2011 Foreign Pension Plans, Defined Benefit [Member] Fair Value Inputs Level 2 Member	Dec. 31, 2010 Foreign Pension Plans, Defined Benefit [Member] Fair Value Inputs Level 2 Member	Dec. 31, 2011 Foreign Pension Plans, Defined Benefit [Member] Fair Value Inputs Level 2 Member Equity Securities [Member]	Dec. 31, 2010 Foreign Pension Plans, Defined Benefit [Member] Fair Value Inputs Level 2 Member Equity Securities [Member]	Dec. 31, 2010 Foreign Pension Plans, Defined Benefit [Member] Fair Value Inputs Level 2 Member Debt Securities [Member]	Dec. 31, 2011 Foreign Pension Plans, Defined Benefit [Member] Fair Value Inputs Level 2 Member Corporate Debt Securities [Member]	Dec. 31, 2010 Foreign Pension Plans, Defined Benefit [Member] Fair Value Inputs Level 2 Member Corporate Debt Securities [Member]	Dec. 31, 2011 Foreign Pension Plans, Defined Benefit [Member] Fair Value Inputs Level 2 Member Derivative [Member]	Dec. 31, 2010 Foreign Pension Plans, Defined Benefit [Member] Fair Value Inputs Level 2 Member Derivative [Member]	Dec. 31, 2011 Foreign Pension Plans, Defined Benefit [Member] Fair Value Inputs Level 2 Member Money Market Funds [Member]	Dec. 31, 2011 Foreign Pension Plans, Defined Benefit [Member] Fair Value Inputs Level 2 Member Fixed Income Investments [Member]	Dec. 31, 2010 Foreign Pension Plans, Defined Benefit [Member] Fair Value Inputs Level 2 Member Fixed Income Investments [Member]	Dec. 31, 2011 Canada Pension Plans Defined Benefit [Member]	Dec. 31, 2010 Canada Pension Plans Defined Benefit [Member]	Dec. 31, 2009 Canada Pension Plans Defined Benefit [Member]	Dec. 31, 2011 Pitney Bowes Management Plan [Member]	Dec. 31, 2011 Nonpension Postretirement Benefit Plan [Member]	Dec. 31, 2010 Nonpension Postretirement Benefit Plan [Member]	Dec. 31, 2009 Nonpension Postretirement Benefit Plan [Member]	Dec. 31, 2011 US Canada Employee Nonpension Plan [Member]	Dec. 31, 2012 UK Equities [Member] Foreign Pension Plans, Defined Benefit [Member]	Dec. 31, 2011 UK Equities [Member] Foreign Pension Plans, Defined Benefit [Member]	Dec. 31, 2010 UK Equities [Member] Foreign Pension Plans, Defined Benefit [Member]	Dec. 31, 2012 Non UK Equities [Member] Foreign Pension Plans, Defined Benefit [Member]	Dec. 31, 2011 Non UK Equities [Member] Foreign Pension Plans, Defined Benefit [Member]	Dec. 31, 2010 Non UK Equities [Member] Foreign Pension Plans, Defined Benefit [Member]	Dec. 31, 2012 Fixed Income [Member] United States Pension Plans Of US Entity Defined Benefit Member	Dec. 31, 2011 Fixed Income [Member] United States Pension Plans Of US Entity Defined Benefit Member	Dec. 31, 2010 Fixed Income [Member] United States Pension Plans Of US Entity Defined Benefit Member	Dec. 31, 2012 Fixed Income [Member] Foreign Pension Plans, Defined Benefit [Member]	Dec. 31, 2011 Fixed Income [Member] Foreign Pension Plans, Defined Benefit [Member]	Dec. 31, 2010 Fixed Income [Member] Foreign Pension Plans, Defined Benefit [Member]	Dec. 31, 2012 Cash [Member] Foreign Pension Plans, Defined Benefit [Member]	Dec. 31, 2011 Cash [Member] Foreign Pension Plans, Defined Benefit [Member]	Dec. 31, 2010 Cash [Member] Foreign Pension Plans, Defined Benefit [Member]	Dec. 31, 2012 US Equities [Member] United States Pension Plans Of US Entity Defined Benefit Member	Dec. 31, 2011 US Equities [Member] United States Pension Plans Of US Entity Defined Benefit Member	Dec. 31, 2010 US Equities [Member] United States Pension Plans Of US Entity Defined Benefit Member	Dec. 31, 2012 Non US Equities [Member] United States Pension Plans Of US Entity Defined Benefit Member	Dec. 31, 2011 Non US Equities [Member] United States Pension Plans Of US Entity Defined Benefit Member	Dec. 31, 2010 Non US Equities [Member] United States Pension Plans Of US Entity Defined Benefit Member	Dec. 31, 2012 Private Equity [Member] United States Pension Plans Of US Entity Defined Benefit Member	Dec. 31, 2011 Private Equity [Member] United States Pension Plans Of US Entity Defined Benefit Member	Dec. 31, 2010 Private Equity [Member] United States Pension Plans Of US Entity Defined Benefit Member	Dec. 31, 2012 Real Estate Asset [Member] United States Pension Plans Of US Entity Defined Benefit Member	Dec. 31, 2011 Real Estate Asset [Member] United States Pension Plans Of US Entity Defined Benefit Member	Dec. 31, 2010 Real Estate Asset [Member] United States Pension Plans Of US Entity Defined Benefit Member
Defined Benefit Plan Assets Target Allocations [Line Items]
Percentage Target Allocation Total			100.00%																																																																																															100.00%																																											32.00%			33.00%			50.00%			35.00%			0.00%			19.00%			19.00%			8.00%			4.00%
Percentage of Plan Asset Allocation Total	100.00%	100.00%																																																																																																	100.00%	100.00%																																										34.00%	33.00%		28.00%	35.00%		56.00%	34.00%		32.00%	29.00%		6.00%	3.00%		18.00%	37.00%		16.00%	20.00%		6.00%	5.00%		4.00%	4.00%
Pension Plans Fair Value Measurements by Level [Abstract]
Total Assets	$ 887,344,000	$ 528,073,000					$ 1,553,164,000	$ 1,545,319,000		$ 480,162,000	$ 777,224,000	$ 77,156,000	$ 113,975,000	$ 467,281,000	$ 172,722,000	$ 293,000	$ 21,000	$ 919,000	$ 18,698,000	$ 88,870,000	$ 69,495,000	$ 57,918,000	$ 52,553,000	$ 61,624,000	$ 161,905,000	$ 22,064,000	$ 20,571,000	$ 119,528,000	$ 158,155,000	$ 177,349,000	$ 278,714,000	$ 535,216,000	$ 218,010,000	$ 431,098,000	$ 60,411,000	$ 104,097,000	$ 0	$ 0	$ 293,000	$ 21,000	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 1,123,960,000	$ 882,666,000	$ 262,152,000	$ 346,126,000	$ 16,745,000	$ 9,878,000	$ 467,281,000	$ 172,722,000	$ 0	$ 0	$ 919,000	$ 18,698,000	$ 0	$ 0	$ 0	$ 0	$ 57,922,000	$ 156,516,000	$ 22,064,000	$ 20,571,000	$ 119,528,000	$ 158,155,000	$ 177,349,000	$ 150,490,000	$ 127,437,000	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 88,870,000	$ 69,495,000	$ 57,918,000	$ 52,553,000	$ 3,702,000	$ 5,389,000	$ 0	$ 0	$ 0	$ 0		$ 426,821,000	$ 439,329,000		$ 264,044,000	$ 293,248,000	$ 13,616,000	$ 37,940,000	$ 7,150,000	$ 49,223,000	$ 7,164,000	$ 6,588,000	$ 7,236,000	$ 127,611,000	$ 52,330,000	$ 126,873,000	$ 139,698,000	$ 113,257,000	$ 128,859,000	$ 13,616,000	$ 10,751,000	$ 0	$ 88,000	$ 299,948,000	$ 299,631,000	$ 150,787,000	$ 164,389,000	$ 27,189,000	$ 7,150,000	$ 49,223,000	$ 7,164,000	$ 6,500,000	$ 7,236,000	$ 127,611,000	$ 52,330,000
Total liabilities	1,439,000	6,907,000					0	51,000								0	51,000														0	51,000							0	51,000													0	0							0	0														0	0							0	0														6,782,000	6,873,000								6,782,000	6,873,000					0						0	6,782,000	6,873,000						6,782,000	6,873,000
Level Three Fair Value Measurements Changes Of Pension Plans Level Three Assets [Abstract]
Balance begining	127,437,000			69,495,000	52,553,000	5,389,000
Realized gains / (losses)	34,000			(11,000)	69,000	(24,000)
Unrealized gains / (losses)	17,297,000			9,652,000	7,825,000	(180,000)
Purchases, sales, issuances and settlements (net)	5,722,000			9,734,000	(2,529,000)	(1,483,000)
Balance ending	150,490,000	127,437,000		88,870,000	57,918,000	3,702,000
Reconciliation of Plan Assets To Fair Value Measurements Hierarchy [Abstract]
Total Plan Assets	1,426,536,000	450,683,000						1,385,174,000	1,350,045,000																																																																																										438,848,000	450,683,000	414,313,000																																				0	0	0
Cash	539,859,000	257,605,000					(1,108,000)																																																																																												(16,424,000)
Securities lending fund liability							119,528,000																																																																																												0
Other							(8,208,000)																																																																																												(4,397,000)
Fair Value Per Measurements Hierarchy							1,553,164,000																																																																																												426,821,000
Nonpension Postretirement Benefits [Abstract]
Age Requirement For Retiree Health Care Eligibility All Employees																																																																																																																																								Above 60				Above 55
Discount rates used in determining the accumulated postretirement benefit obligations							4.95%	5.60%	5.75%																																																																																																																												4.15%	5.15%	5.85%
Assumed health care trend rate year 2011	7.50%
Ultimate assumed health care rate year 2037	5.00%
Health care cost trend rate	7.50%	7.50%
Employer Matching Contributions To Voluntary Defined Contribution Plan	$ 30,000,000	$ 29,000,000