Changes in Accumulated Other Comprehensive Income (Tables)

12 Months Ended

Dec. 31, 2016

Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]

Components of comprehensive income (loss), net of tax

Changes in Foreign Currency Translation Adjustments for the three years ended December 31 were as follows:

		Foreign
		Currency
		Translation
(Millions), net of tax(a)		Adjustments
Balances as of December 31, 2013	$	(478)
Net translation loss of investments in foreign operations		(471)
Net gains related to hedges of investment in foreign operations		162
Net change in accumulated other comprehensive loss		(309)
Balances as of December 31, 2014		(787)
Net translation loss of investments in foreign operations		(604)
Net gains related to hedges of investment in foreign operations		235
Net change in accumulated other comprehensive loss		(369)
Balances as of December 31, 2015		(1,156)
Net translation loss of investments in foreign operations		(187)
Net gains related to hedges of investment in foreign operations		80
Net change in accumulated other comprehensive loss		(107)
Balances as of December 31, 2016	$	(1,263)

Tax impact for the changes in each component of accumulated other comprehensive (loss) income

The following table shows the tax impact for the three years ended December 31 for the changes in each component of AOCI:

	Tax expense
(Millions)		2016		2015		2014
Foreign currency translation adjustments	$	49	$	―	$	30
Net investment hedges		48		140		96
Total tax impact	$	97	$	140	$	126