Borrowings and Credit Arrangements (Details)	3 Months Ended	6 Months Ended	12 Months Ended							6 Months Ended
	Mar. 31, 2011 USD ($)	Jun. 30, 2011 USD ($)	Dec. 31, 2010 USD ($)	Jun. 30, 2011 EUR (€)	Jan. 31, 2010 USD ($)	Jun. 30, 2011 Uncommitted Credit Facilities With Two Commercial Japanese Banks [Member]	Jun. 30, 2011 Uncommitted credit facilities with two commercial Japanese banks [Member] USD ($)	Jun. 30, 2011 Uncommitted credit facilities with two commercial Japanese banks [Member] JPY (¥)	Dec. 31, 2010 Uncommitted credit facilities with two commercial Japanese banks [Member] USD ($)	Jun. 30, 2011 Revolving credit facility [Member] USD ($)	Dec. 31, 2010 Revolving credit facility [Member] USD ($)	Jun. 30, 2011 Revolving credit facility [Member] Covenant Requirement [Member]	Jun. 30, 2011 Revolving credit facility [Member] Actual, Covenant [Member]	Jun. 30, 2011 Senior Notes [Member] USD ($)
Debt Instrument [Line Items]
Repayments of Long-term Debt	$ 250,000,000	$ 1,000,000,000
Schedule of debt maturities
Payments due, 2011
Payments due, 2012
Payments due, 2013
Payments due, 2014		600,000,000												600,000,000
Payments due, 2015		1,250,000,000												1,250,000,000
Payments due, Thereafter		2,350,000,000												2,350,000,000
Payments due, Total		4,200,000,000												4,200,000,000
Summary of compliance with debt covenants
Maximum Leverage Ratio												3.5	1.4
Minimum interest coverage ratio												3.0	8.5
Borrowings and Credit Arrangements (Textuals) [Abstract]
Total debt		4,201,000,000	5,438,000,000
Repayment of term loan facility	250,000,000	1,000,000,000
Payments of senior notes at maturity		250,000,000
Revolving credit facility		350,000,000								2,000,000,000
Interest Margin above LIBOR, Minimum										1.55%
Interest Margin above LIBOR, Maximum										2.625%
Current interest rate on revolving credit facility										2.25%
Commitment fee percentage										0.50%
Amount borrowed under credit facilities					250,000,000					0	0
Amount of exclusions from EBITDA related to existing restructuring plans										258,000,000
Amount of exclusions from EBITDA related to future restructuring initiatives										300,000,000
Restructuring charges remaining to be excluded from calculation of consolidated EBITDA										390,000,000
Amount of exclusions from EBITDA related to litigation charges recorded as of March 31, 2010										1,310,000,000
Amount of exclusions from EBITDA related to future litigation charges and payments										1,500,000,000
Legal payments remaining to be excluded from calculation of consolidated EBITDA										1,842,000,000
Senior notes		4,200,000,000	4,450,000,000
Maximum amount of proceeds from sale of finance receivables		435,000,000		300,000,000			230,000,000	18,500,000,000
De-recognized receivables		$ 421,000,000	$ 363,000,000				$ 182,000,000		$ 197,000,000
Average interest rate of de-recognized receivables		2.50%	2.00%
Average discounted rates of notes receivables						1.80%			1.70%