Borrowings and Credit Arrangements (Details) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended							3 Months Ended
	Mar. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Mar. 31, 2014 Uncommitted Credit Facilities With A Commercial Japanese Banks [Member] USD ($)	Mar. 31, 2014 Uncommitted Credit Facilities With A Commercial Japanese Banks [Member] JPY (¥)	Dec. 31, 2013 Uncommitted Credit Facilities With A Commercial Japanese Banks [Member] USD ($)	Mar. 31, 2014 Italy, Spain, Portugal and Greece [Member] USD ($)	Mar. 31, 2014 Covenant Requirement [Member]	Mar. 31, 2014 Actual, Covenant [Member]	Mar. 31, 2014 Revolving credit facility [Member] USD ($)	Apr. 18, 2012 Revolving credit facility [Member] USD ($)	Mar. 31, 2014 Unsecured Term Loan Facility [Member] USD ($)	Aug. 06, 2013 Unsecured Term Loan Facility [Member]	Mar. 31, 2014 Senior Notes [Member] USD ($)	Mar. 31, 2014 Unsecured Term Loan Facility [Member] USD ($)	Dec. 31, 2013 Unsecured Term Loan Facility [Member] USD ($)
Schedule of debt maturities
Long-term Debt, Maturities, Repayments of Principal in Current Year	$ 0												$ 0	$ 0
Long-term Debt, Maturities, Repayments of Principal in Year Two	400												400	0
Long-term Debt, Maturities, Repayments of Principal in Year Three	680												600	80
Long-term Debt, Maturities, Repayments of Principal in Year Four	330												250	80
Long-term Debt, Maturities, Repayments of Principal in Year Five	840												600	240
Long-term Debt, Maturities, Repayments of Principal After Year Five	1,950												1,950	0
Long-term Debt, Maturities, Total Repayments of Principal	4,200												3,800	400	400
Summary of compliance with debt covenants
Maximum Leverage Ratio							3.5	2.4
Minimum interest coverage ratio							3.0	5.6
Borrowings and Credit Arrangements (Textuals) [Abstract]
Total debt	4,249	4,240
Line of Credit Facility, Maximum Borrowing Capacity	300									2,000
Interest Margin above LIBOR, Minimum										0.875%		1.00%
Interest Margin above LIBOR, Maximum										1.475%		1.75%
Line of Credit Facility, Current Interest Rate									1.275%
Commitment fee percentage									0.225%
Exclusion from EBITDA for Restructuring Charges										500
Restructuring charges remaining to be excluded from calculation of consolidated EBITDA									206
Litigation and Debt Exclusion from EBITDA										2,300
Legal payments and debt remaining to be excluded from calculation of consolidated EBITDA									2,183
Unsecured Term Loan Facility, Interest Rate During Period											1.50%
Quarterly term-loan principal payments											20
Senior notes	3,800	3,800
Maximum amount of proceeds from sale of finance receivables	312		203	21,000
Average interest rate of de-recognized receivables	3.60%	3.30%
Cash receipts on long outstanding Spain receivables	80
De-recognized receivables	158	146	144		147
Accounts receivable 180 days past due						36
Accounts receivable 360 days past due						17
Average discounted rates of notes receivables			1.50%	1.50%	1.80%
Letters of Credit Outstanding, Amount	$ 78	$ 78