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Employee Benefit Plans (Expected Future Benefit Payments To Be Paid) (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2013
Pension Benefits [Member]
 
Defined Benefit Plan Disclosure [Line Items]  
2014 $ 117
2015 121
2016 125
2017 130
2018 136
2019 - 2023 776
Postretirement Benefits [Member]
 
Defined Benefit Plan Disclosure [Line Items]  
2014 11
2015 11
2016 11
2017 11
2018 12
2019 - 2023 $ 64