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Debt and Credit Facilities (Tables)

9 Months Ended

Sep. 30, 2017

Long-term Debt, Unclassified [Abstract]

Schedule of Long-term Debt Instruments

Summary of Total Debt
Senior unsecured notes:					September 2017			December 2016
	Rate		Due
	1.300%		April 1, 2018		$	599		$	598
	1.800%		January 15, 2019		499			—
	2.000%		March 8, 2019		747			746
	4.375%		January 15, 2020		498			497
	2.625%		March 15, 2021		746			745
	3.375%		May 15, 2024		603			602
	3.375%		November 1, 2025		745			744
	3.500%		March 15, 2026		988			987
	4.100%		April 1, 2043		391			391
	4.375%		May 15, 2044		394			395
	4.625%		March 15, 2046		980			979
Commercial paper					—			200
Other					35			30
Total debt					$	7,225		$	6,914
Less current maturities					632			228
Total long-term debt					$	6,593		$	6,686
Unamortized debt issuance costs					$	41		$	45
Available borrowing capacity					$	1,542		$	1,551
Fair value of debt					$	7,446		$	6,762

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- Definition

Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation.

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