Financing arrangements (Tables)

6 Months Ended

Jun. 30, 2016

Debt Disclosure [Abstract]

Principal amounts, fixed contractual coupon rates and aggregate carrying value of long-term borrowings

The principal amounts, fixed contractual coupon rates and aggregate carrying value of our long-term borrowings were as follows (in millions):

	June 30, 2016			December 31, 2015
2.30% notes due 2016 (2.30% 2016 Notes)	$	—		$	750
2.50% notes due 2016 (2.50% 2016 Notes)	1,000			1,000
2.125% notes due 2017 (2.125% 2017 Notes)	1,250			1,250
Floating Rate Notes due 2017	600			600
1.25% notes due 2017 (1.25% 2017 Notes)	850			850
5.85% notes due 2017 (5.85% 2017 Notes)	1,100			1,100
6.15% notes due 2018 (6.15% 2018 Notes)	500			500
Term Loan due 2018 (Term Loan)	1,725			1,975
4.375% euro-denominated notes due 2018 (4.375% 2018 euro Notes)	606			599
5.70% notes due 2019 (5.70% 2019 Notes)	1,000			1,000
Floating Rate Notes due 2019	250			250
2.20% notes due 2019 (2.20% 2019 Notes)	1,400			1,400
2.125% euro-denominated notes due 2019 (2.125% 2019 euro Notes)	750			733
4.50% notes due 2020 (4.50% 2020 Notes)	300			300
2.125% notes due 2020 (2.125% 2020 Notes)	750			750
3.45% notes due 2020 (3.45% 2020 Notes)	900			900
4.10% notes due 2021 (4.10% 2021 Notes)	1,000			1,000
3.875% notes due 2021 (3.875% 2021 Notes)	1,750			1,750
1.25% euro-denominated notes due 2022 (1.25% 2022 euro Notes)	1,388			—
2.70% notes due 2022 (2.70% 2022 Notes)	500			500
3.625% notes due 2022 (3.625% 2022 Notes)	750			750
0.41% Swiss-franc-denominated bonds due 2023 (0.41% 2023 Swiss franc Bonds)	717			—
3.625% notes due 2024 (3.625% 2024 Notes)	1,400			1,400
3.125% notes due 2025 (3.125% 2025 Notes)	1,000			1,000
2.00% euro-denominated notes due 2026 (2.00% 2026 euro Notes)	833			—
5.50% pound-sterling denominated notes due 2026 (5.50% 2026 pound sterling Notes)	633			700
4.00% pound-sterling denominated notes due 2029 (4.00% 2029 pound sterling Notes)	932			1,032
6.375% notes due 2037 (6.375% 2037 Notes)	552			900
6.90% notes due 2038 (6.90% 2038 Notes)	291			500
6.40% notes due 2039 (6.40% 2039 Notes)	466			1,000
5.75% notes due 2040 (5.75% 2040 Notes)	412			700
4.95% notes due 2041 (4.95% 2041 Notes)	600			600
5.15% notes due 2041 (5.15% 2041 Notes)	974			2,250
5.65% notes due 2042 (5.65% 2042 Notes)	487			1,250
5.375% notes due 2043 (5.375% 2043 Notes)	261			1,000
4.40% notes due 2045 (4.40% 2045 Notes)	1,250			1,250
4.563% notes due 2048 (4.563% 2048 Notes)	1,415			—
4.663% notes due 2051 (4.663% 2051 Notes)	3,541			—
Other notes	100			100
Unamortized bond discounts and issuance costs	(1,011		)	(210		)
Total carrying value of debt	$	33,222		$	31,429
Less current portion	(5,294		)	(2,247		)
Total noncurrent debt	$	27,928		$	29,182

Principal amounts of Old Notes tendered and subsequently canceled

The following principal amounts of each series of Old Notes were validly tendered and subsequently canceled (in millions):

	Principal Amount Exchanged
6.375% 2037 Notes	$	348
6.90% 2038 Notes	209
6.40% 2039 Notes	534
5.75% 2040 Notes	288
5.15% 2041 Notes	1,276
5.65% 2042 Notes	763
5.375% 2043 Notes	739