猫咪社区 Quarterly report pursuant to Section 13 or 15(d)

Assets And Liabilities Measured At Fair Value - Realized and Unrealized Gains (Losses) on Financial Instruments (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	听	听
Realized and unrealized gains (losses) on financial instruments, net	$ (12)	$ (8)
Fair Value Option Securities	听	听
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	听	听
Realized and unrealized gains (losses) on financial instruments, net	30	24
Debt measured at fair value	听	听
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	听	听
Realized and unrealized gains (losses) on financial instruments, net	(116)	(3)
Bond Hedge Change in Fair Value	听	听
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	听	听
Realized and unrealized gains (losses) on financial instruments, net	78	(28)
Other derivatives	听	听
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	听	听
Realized and unrealized gains (losses) on financial instruments, net	$ (4)	$ (1)