Long-Term Obligations and Other Short-Term Borrowings (Summary of Debt) (Details) - USD ($) $ in Millions	Jun. 30, 2016	Jun. 30, 2015	Nov. 30, 2014
Debt Instrument [Line Items]
Other obligations	$ 330	$ 312
Total	5,539	5,492
Less: current portion of long-term obligations and other short-term borrowings	587	281
Long-term obligations, less current portion	4,952	5,211
1.7% Notes due 2018
Debt Instrument [Line Items]
Notes payable	$ 405	404
Stated interest rate	1.70%
1.9% Notes due 2017
Debt Instrument [Line Items]
Notes payable	$ 251	251
Stated interest rate	1.90%
1.95% Notes due 2018
Debt Instrument [Line Items]
Notes payable	$ 554	$ 550
Stated interest rate	1.95%	1.95%
2.4% Notes due 2019
Debt Instrument [Line Items]
Notes payable	$ 461	$ 450
Stated interest rate	2.40%		2.40%
3.2% Notes due 2022
Debt Instrument [Line Items]
Notes payable	$ 253	249
Stated interest rate	3.20%
3.2% Notes due 2023
Debt Instrument [Line Items]
Notes payable	$ 549	549
Stated interest rate	3.20%
3.5% Notes due 2024
Debt Instrument [Line Items]
Notes payable	$ 398	398
Stated interest rate	3.50%		3.50%
3.75% Notes due 2025
Debt Instrument [Line Items]
Notes payable	$ 505	$ 500
Stated interest rate	3.75%	3.75%
4.5% Notes due 2044
Debt Instrument [Line Items]
Notes payable	$ 345	$ 345
Stated interest rate	4.50%		4.50%
4.6% Notes due 2043
Debt Instrument [Line Items]
Notes payable	$ 349	349
Stated interest rate	4.60%
4.625% Notes due 2020
Debt Instrument [Line Items]
Notes payable	$ 528	524
Stated interest rate	4.625%
4.9% Notes due 2045
Debt Instrument [Line Items]
Notes payable	$ 450	$ 450
Stated interest rate	4.90%	4.90%
7.0% Debentures due 2026
Debt Instrument [Line Items]
Notes payable	$ 124	$ 124
Stated interest rate	7.00%
7.8% Debentures due 2016
Debt Instrument [Line Items]
Notes payable	$ 37	$ 37
Stated interest rate	7.80%