Borrowing and Credit Agreements (Tables)

12 Months Ended

Dec. 31, 2014

Debt Disclosure [Abstract]

Summary of the Company's borrowings

The following table is a summary of the Company’s borrowings as of December 31: 

In millions	2014			2013
Commercial paper	$	685		$	—
4.875% senior notes due 2014	—			550
3.25% senior notes due 2015	550			550
6.125% senior notes due 2016	421			421
1.2% senior notes due 2016	750			750
5.75% senior notes due 2017	1,080			1,310
2.25% senior notes due 2018	1,250			1,250
6.6% senior notes due 2019	394			394
2.25% senior notes due 2019	850			—
4.75% senior notes due 2020	450			450
4.125% senior notes due 2021	550			550
2.75% senior notes due 2022	1,250			1,250
4.0% senior notes due 2023	1,250			1,250
3.375% senior notes due 2024	650			—
6.25% senior notes due 2027	453			1,000
6.125% senior notes due 2039	734			1,500
5.75% senior notes due 2041	493			950
5.3% senior notes due 2043	750			750
Capital lease obligations	391			390
Other	4			87
	12,955			13,402
Less:
Short-term debt (commercial paper)	(685		)	—
Current portion of long-term debt	(575		)	(561		)
Long-term debt	$	11,695		$	12,841