Derivative Financial Instruments and Hedging Activities (Tables)

6 Months Ended

Jun. 30, 2011

Derivative Financial Instruments And Hedging Activities (Tables) [Abstract]

Interest Rate Risk

		Notional		Fair
		amount(i)		value
		(millions)
US dollar	Receive fixed-pay variable	$	840	$	10
Pounds sterling	Receive fixed-pay variable		250		3
Euro	Receive fixed-pay variable		146		—

Foreign Currency Risk

			Fair
	Sell(i)		value
	(millions)
US dollar	$	325	$	10
Euro		161		(5	)
Japanese yen		64		(4	)

Derivative financial and hedging instruments

		Fair value
	Balance sheet	June 30,
Derivative financial instruments designated as hedging instruments:	classification	2011			December 31, 2010
		(millions)
Assets:
Interest rate swaps (cash flow hedges)	Other assets	$	15		$	17
Interest rate swaps (fair value hedges)	Other assets		22			14
Forward exchange contracts	Other assets		13			16
Total derivatives designated as hedging instruments		$	50		$	47
Liabilities:
Interest rate swaps (cash flow hedges)	Other liabilities		(2	)		(2	)
Forward exchange contracts	Other liabilities		(12	)		(10	)
Total derivatives designated as hedging instruments		$	(14	)	$	(12	)

Cashflow Hedges

									Amount of
									gain (loss)
					Amount of				recognized
					gain (loss)				in income
	Amount of				reclassified				on derivative
	gain (loss)				from				(ineffective
	recognized				accumulated			Location of gain (loss)	hedges and
	in OCI(i)			Location of gain (loss)	OCI(i) into			recognized in income	ineffective
	on derivative			reclassified from	income			on derivative (ineffective	element of
Derivatives in cash flow	(effective			accumulated OCI(i) into	(effective			hedges and ineffective	effective
hedging relationships	element)			income (effective element)	element)			element of effective hedges)	hedges)
	(millions)				(millions)				(millions)
Three months ended June 30, 2011
Interest rate swaps	$	6		Investment income	$	(4	)	Other operating expenses	$	—
Forward exchange contracts		(7	)	Other operating expenses		—		Interest expense		—
Total	$	(1	)		$	(4	)		$	—
Three months ended June 30, 2010
Interest rate swaps	$	6		Investment income	$	(6	)	Other operating expenses	$	—
Forward exchange contracts		7		Other operating expenses		2		Interest expense		—
Total	$	13			$	(4	)		$	—
Six months ended June 30, 2011
Interest rate swaps	$	4		Investment income	$	(8	)	Other operating expenses	$	—
Forward exchange contracts		(5	)	Other operating expenses		(1	)	Interest expense		1
Total	$	(1	)		$	(9	)		$	1
Six months ended June 30, 2010
Interest rate swaps	$	11		Investment income	$	(13	)	Other operating expenses	$	—
Forward exchange contracts		4		Other operating expenses		7		Interest expense		—
Total	$	15			$	(6	)		$	—

Fair Value Hedges

					Gain (loss)			Ineffectiveness
		Gain (loss)			recognized			recognized in
	Hedged item in fair value	recognized			for hedged			interest
Derivatives in fair value hedging relationships	hedging relationship	for derivative			item			expense
					(millions)
Three months ended June 30, 2011
Interest rate swaps	5.625% senior notes due 2015	$	(6	)	$	6		$	—
Three months ended June 30, 2010
Interest rate swaps	5.625% senior notes due 2015	$	12		$	(12	)	$	—
Six months ended June 30, 2011
Interest rate swaps	5.625% senior notes due 2015	$	5		$	(4	)	$	(1	)
Six months ended June 30, 2010
Interest rate swaps	5.625% senior notes due 2015	$	14		$	(14	)	$	—