Borrowings and Lines of Credit (Tables)

9 Months Ended

Sep. 30, 2018

Debt Disclosure [Abstract]

Schedule of Short-Term Debt [Table Text Block]

(dollars in millions)	September 30, 2018		December 31, 2017
Commercial paper	$	1,380	$	300
Other borrowings	196		92
Total short-term borrowings	$	1,576	$	392

Schedule of Long-term Debt [Table Text Block]

Long-term debt consisted of the following:

(dollars in millions)	September 30, 2018		December 31, 2017
6.800% notes due 2018	$	—	$	99
EURIBOR plus 0.800% floating rate notes due 2018 (€750 million principal value) 2	—		890
1.778% junior subordinated notes due 2018	—		1,100
LIBOR plus 0.350% floating rate notes due 2019 3	350		350
1.500% notes due 2019 1	650		650
EURIBOR plus 0.15% floating rate notes due 2019 (€750 million principal value) 2	881		890
8.875% notes due 2019	271		271
4.875% notes due 2020 1	171		171
4.500% notes due 2020 1	1,250		1,250
1.900% notes due 2020 1	1,000		1,000
EURIBOR plus 0.20% floating rate notes due 2020 (€750 million principal value) 2	881		—
8.750% notes due 2021	250		250
3.350% notes due 2021 1	1,000		—
LIBOR plus 0.650% floating rate notes due 2021 1,3	750		—
1.950% notes due 2021 1	750		750
1.125% notes due 2021 (€950 million principal value) 1	1,117		1,127
2.300% notes due 2022 1	500		500
3.100% notes due 2022 1	2,300		2,300
1.250% notes due 2023 (€750 million principal value) 1	881		890
3.650% notes due 2023 1	2,250		—
2.800% notes due 2024 1	800		800
1.150% notes due 2024 (€750 million principal value) 1	881		—
3.950% notes due 2025 1	1,500		—
1.875% notes due 2026 (€500 million principal value) 1	588		593
2.650% notes due 2026 1	1,150		1,150
3.125% notes due 2027 1	1,100		1,100
7.100% notes due 2027	141		141
6.700% notes due 2028	400		400
4.125% notes due 2028 1	3,000		—
7.500% notes due 2029 1	550		550
2.150% notes due 2030 (€500 million principal value) 1	588		—
5.400% notes due 2035 1	600		600

6.050% notes due 2036 1	600			600
6.800% notes due 2036 1	134			134
7.000% notes due 2038	159			159
6.125% notes due 2038 1	1,000			1,000
4.450% notes due 2038 1	750			—
5.700% notes due 2040 1	1,000			1,000
4.500% notes due 2042 1	3,500			3,500
4.150% notes due 2045 1	850			850
3.750% notes due 2046 1	1,100			1,100
4.050% notes due 2047 1	600			600
4.625% notes due 2048 1	1,750			—
Project financing obligations	250			158
Other (including capitalized leases)	230			195
Total principal long-term debt	38,473			27,118
Other (fair market value adjustments and discounts)	(106		)	(25		)
Total long-term debt	38,367			27,093
Less: current portion	92			2,104
Long-term debt, net of current portion	$	38,275		$	24,989

1 We may redeem these notes at our option pursuant to their terms.

2 The three-month EURIBOR rate as of September 30, 2018 was approximately -0.318%. The notes may be redeemed at our option in whole, but not in part, at any time in the event of certain developments affecting U.S. taxation.

3 The three-month LIBOR rate as of September 30, 2018 was approximately 2.398%.

Schedule of Weighted average interest rates [Table Text Block]

The average interest expense rate on our total borrowings for the quarter and nine months ended September 30, 2018 and 2017 were as follows:

	Quarter Ended September 30,				Nine Months Ended September 30,
	2018		2017		2018		2017
Average interest expense rate	3.6	%	3.6	%	3.5	%	3.6	%