Income and Other Taxes - Income Tax Expense (Benefit), Current Deferred, by Jurisdiction (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Current Federal Tax Expense (Benefit)	$ 27	$ 23	$ 51
Deferred Federal Income Tax Expense (Benefit)	72	84	134
Current Foreign Tax Expense (Benefit)	89	119	95
Deferred Foreign Income Tax Expense (Benefit)	35	0	38
Current State Tax Expense (Benefit)	38	34	28
Deferred State Income Tax Expense (Benefit)	15	12	31
Total Provision	$ 276	$ 272	$ 377