Changes in Other Comprehensive Income (Tables)

12 Months Ended

Dec. 31, 2018

Changes in Other Comprehensive Income [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

The following table provides the reclassifications out of Other comprehensive income, net of tax:

(in millions)	Foreign Currency Translation Adjustments			Net Change in Derivative Financial Instruments		Net Change in Available-for-Sale Securities			Net Change in Defined Benefit Pensions and Other Items			Total
Balance as of December 31, 2017	$	(32	)	$	1	$	(1	)	$	(27	)	$	(59	)
Other comprehensive income (loss) before reclassifications	—			96		—			(2		)	94
(Income) loss amounts reclassified from accumulated other comprehensive income	(21		)	14		1			4			(3		)
Total other comprehensive income (loss)	(21		)	110		—			2			91
Balance as of December 31, 2018	$	(53	)	$	111	$	—		$	(25	)	$	33

(in millions)	Foreign Currency Translation Adjustments			Net Change in Derivative Financial Instruments			Net Change in Available-for-Sale Securities			Net Change in Defined Benefit Pensions and Other Items			Total
Balance as of December 31, 2016	$	(79	)	$	107		$	(6	)	$	(21	)	$	1
Other comprehensive income (loss) before reclassifications	48			(65		)	(10		)	(8		)	(35		)
(Income) loss amounts reclassified from accumulated other comprehensive income	—			(42		)	15			2			(25		)
Total other comprehensive income (loss)	48			(106		)	5			(6		)	(59		)
Balance as of December 31, 2017	$	(32	)	$	1		$	(1	)	$	(27	)	$	(59	)