Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2016

Fair Value Measurements

Fair Value, Assets and Liabilities Measured on Recurring Basis

			Fair Value Measurements
Description	Fair Value at		Using Inputs Considered as
(Millions)	March 31, 2016		Level 1		Level 2		Level 3
Assets:
Available-for-sale:
Marketable securities:
Foreign government agency securities	$	10	$	—	$	10	$	—
Corporate debt securities		10		—		10		—
Commercial paper		36		—		36		—
Certificates of deposit/time deposits		46		—		46		—
Asset-backed securities:
Automobile loan related		44		—		44		—
Credit card related		19		—		19		—
Equipment lease related		1		—		1		—
Other		7		—		7		—
U.S. municipal securities		18		—		—		18
Derivative instruments — assets:
Foreign currency forward/option contracts		117		—		117		—
Interest rate swap contracts		53		—		53		—
Liabilities:
Derivative instruments — liabilities:
Foreign currency forward/option contracts		155		—		155		—
Interest rate swap contracts		1		—		1		—

			Fair Value Measurements
Description	Fair Value at		Using Inputs Considered as
(Millions)	December 31, 2015		Level 1		Level 2		Level 3
Assets:
Available-for-sale:
Marketable securities:
Foreign government agency securities	$	10	$	—	$	10	$	—
Corporate debt securities		10		—		10		—
Commercial paper		12		—		12		—
Certificates of deposit/time deposits		26		—		26		—
Asset-backed securities:
Automobile loan related		26		—		26		—
Credit card related		10		—		10		—
Equipment lease related		2		—		2		—
Other		19		—		19		—
U.S. municipal securities		12		—		—		12
Derivative instruments — assets:
Foreign currency forward/option contracts		272		—		272		—
Interest rate swap contracts		24		—		24		—
Liabilities:
Derivative instruments — liabilities:
Foreign currency forward/option contracts		68		—		68		—
Interest rate swap contracts		1		—		1		—

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation

	Three months ended
Marketable securities — certain U.S. municipal securities only	March 31,
(Millions)	2016		2015
Beginning balance	$	12	$	15
Total gains or losses:
Included in earnings		—		—
Included in other comprehensive income		—		—
Purchases and issuances		6		—
Sales and settlements		—		—
Transfers in and/or out of level 3		—		—
Ending balance	$	18	$	15
Change in unrealized gains or losses for the period included in earnings for securities held at the end of the reporting period		—		—

Fair Value of Financial Instruments by Balance Sheet Grouping

	March 31, 2016				December 31, 2015
	Carrying		Fair		Carrying		Fair
(Millions)	Value		Value		Value		Value
Medium-term fixed rate notes due September 2016	$	999	$	1,002	$	999	$	1,003
Long-term debt, excluding current portion and medium-term fixed rate notes due September 2016		8,927		9,559		8,753		9,101