Commitments and Contingencies (Details 1) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013
Future minimum rental commitments
Rent commitment, 2014	$ 161
Rent commitment, 2015	155
Rent commitment, 2016	123
Rent commitment, 2017	99
Rent commitment, 2018	90
Rent commitment, 2019 and beyond	238
Rent commitment, Total	866
Sublease income, 2014	(14)
Sublease income, 2015	(14)
Sublease income, 2016	(13)
Sublease income, 2017	(13)
Sublease income, 2018	(13)
Sublease income, 2019 and beyond	(16)
Sublease income, Total	(83)
Net rent, 2014	147
Net rent, 2015	141
Net rent, 2016	110
Net rent, 2017	86
Net rent, 2018	77
Net rent, 2019 and beyond	222
Net rent, Total	$ 783

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Operating Leases Future Minimum Net Payments Due.

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Operating leases future minimum net payments due current.

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Operating leases future minimum net payments due in five years.

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Operating leases future minimum net payments due in four years.

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Operating leases future minimum net payments due in three years.

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Operating leases future minimum net payments due in two years.

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Operating leases future minimum net payments due thereafter.

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Operating leases future minimum sublease income due current.

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Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing in the next fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Contractually required future rental payments receivable on noncancelable subleasing arrangements.

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Amount of required minimum rental payments maturing in the fifth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing in the forth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing in the third fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing in the second fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments maturing after the fifth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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