Debt (Tables)

9 Months Ended

Sep. 30, 2018

Debt Disclosure [Abstract]

Schedule Of Debt

Debt consisted of the following:

		September 30, 2018		December 31, 2017
Fixed-rate notes due:	Interest rate:
May 2020	2.875%	$	2,000	$	—
May 2021	3.000%	2,000		—
July 2021	3.875%	500		500
November 2022	2.250%	1,000		1,000
May 2023	3.375%	750		—
August 2023	1.875%	500		500
November 2024	2.375%	500		500
May 2025	3.500%	750		—
August 2026	2.125%	500		500
November 2027	2.625%	500		500
May 2028	3.750%	1,000		—
November 2042	3.600%	500		500
Floating-rate notes due:
May 2020	3-month LIBOR + 0.29%	500		—
May 2021	3-month LIBOR + 0.38%	500		—
Commercial paper	2.114%	1,672		—
Other	Various	19		32
Total debt principal		13,191		4,032
Less unamortized debt issuance costs     and discounts		110		50
Total debt		13,081		3,982
Less current portion		1,678		2
Long-term debt		$	11,403	$	3,980

Schedule of Maturities of Debt

The aggregate amounts of scheduled principal maturities of our debt in the remainder of 2018 and in subsequent years are as follows:

2018	$	1,678
2019	2
2020	2,502
2021	3,002
2022	1,002
Thereafter	5,005
Total debt principal	$	13,191