Borrowings and Credit Arrangements (Details)	1 Months Ended	3 Months Ended	9 Months Ended	12 Months Ended						3 Months Ended				1 Months Ended	3 Months Ended
	Jan. 31, 2011 USD ($)	Mar. 31, 2011 USD ($)	Sep. 30, 2011 USD ($)	Dec. 31, 2010 USD ($)	Sep. 30, 2011 EUR (€)	Sep. 30, 2011 Uncommitted Credit Facilities With Two Commercial Japanese Banks [Member]	Sep. 30, 2011 Uncommitted Credit Facilities With Two Commercial Japanese Banks [Member] USD ($)	Sep. 30, 2011 Uncommitted Credit Facilities With Two Commercial Japanese Banks [Member] JPY (¥)	Dec. 31, 2010 Uncommitted Credit Facilities With Two Commercial Japanese Banks [Member] USD ($)	Sep. 30, 2011 Revolving credit facility [Member] USD ($)	Dec. 31, 2010 Revolving credit facility [Member] USD ($)	Sep. 30, 2011 Revolving credit facility [Member] Covenant Requirement [Member]	Sep. 30, 2011 Revolving credit facility [Member] Actual, Covenant [Member]	Jan. 31, 2011 Credit Facility One [Member] USD ($)	Mar. 31, 2011 Credit Facility One [Member] USD ($)	Sep. 30, 2011 Credit Facility One [Member] USD ($)	Dec. 31, 2010 Credit Facility One [Member] USD ($)	Sep. 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	1.5
Minimum interest coverage ratio												3.0	9.0
Borrowings and Credit Arrangements (Textuals) [Abstract]
Total debt			4,263,000,000	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										2.05%
Commitment fee percentage										0.45%
Amount borrowed under credit facilities										175,000,000				250,000,000
Line of Credit Facility, Amount Outstanding										0	0					0	0
Line of Credit Facility, Decrease, Repayments										175,000,000					250,000,000
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										361,000,000
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										1,832,000,000
Senior notes			4,200,000,000	4,450,000,000
Maximum amount of proceeds from sale of finance receivables			445,000,000		330,000,000		240,000,000	18,500,000,000
De-recognized receivables			387,000,000	363,000,000			188,000,000		197,000,000
Average interest rate of de-recognized receivables			2.50%	2.00%
Average discounted rates of notes receivables						1.80%			1.70%
Line of Credit Facility, Increase, Additional Borrowings										$ 175,000,000				$ 250,000,000